Added Squirrel Wheel 6DOF connection that models the elastic elements of a squirrel wheel
Added functionality to identify shapes in sustainability maps
Added recalculation of API610/GOST 32601-2022 zone for logarithmic decrement LnDec
The boundaries of the stability graph are automatically adjusted to the zone from API610/GOST 32601-2022 standards when displaying a map in LocusDR mode
Added an alternative setting for visualizing the elements [Disk], [Mass], [Generalized Element] as beams
Added setting of offset along the z axis for visualization of the [Mass] and [Base Weight] elements
The compliance matrix in the information dialog of the calculated element properties is displayed for 6 degrees of freedom for both isotropic and orthotropic elements
Fixed: Roller bearings were not displaying maximum contact pressures in the life calculation results
Fixed: Hotkeys for moving through the history of active elements (ctrl+shift+z/y) do not work
Fixed shift of the element’s property table when selecting one of the last properties, if all the properties do not fit in the panel
Fixed switching of units of measurement for the compliance matrix in the information dialog of the calculated properties of the element
Changes in DYNAMICS R4.14.4.7157
Added output of summary tables of energy by modes of oscillations in the algorithms [Basis], [Natural frequencies], [Critical speeds].
Added display of intermediate results of the analysis during the calculation of the algorithms [Map of natural frequencies], [Parametric analysis], [Imbalance behavior], [Nonlinear analysis].
Added a button to disable the visualization of section lines in the 2D view of the model (made by default).
Added a button to set the cursor by the point index on the chart or the value on the X axis in the [Imbalance Behavior] and [Nonlinear Analysis] algorithms.
Changed the 3D output in the [Unbalance Behavior] algorithm.
Added an additional mode [UR_Tor] for outputting torsional vibration forms with display as displacements in the YZ plane.
When a link is selected in the model tree, only links are highlighted on the 2D view of the model when you click LMB.
Fixed a crash when starting a model calculation with a point element ([Imbalance], [Dynamic Load], etc.) installed on the conical section of the [Shell] element.
Changed the description of the “Open export dialog” button to “Export data to clipboard”. Clicking the button now exports data to the clipboard without showing the export dialog (shown when the Shift key is pressed).
Fixed: when adding a subsystem to a z-offset assembly, a beam in the subsystem was added with z1 and z2 negative (at global zero).
Fixed: copy of the model in read mode did not open in an additional instance of Dynamics_x64.exe.
Changes in DYNAMICS R4.14.0.6525
The interface (pre and post processing of results) now works only in x64 OS architecture.
The restriction on the number of sections for models calculated from the GUI has been removed (previously it was necessary to use the x64 console solver).
Simulation command interface and protocols now use Python 3.
Accelerated calculation of complex models in non-stationary and parametric analysis.
Added calculation of stiffness and damping curves for Throat seals in DynFB.
Added element Elastic ring (Alyson’s Ring).
Added hysteresis friction model to AFB gas dynamic bearings.
Now the waveforms are not recalculated if the Basis was previously calculated (the calculation of all algorithms on complex models has been accelerated).
Added the ability to create lists of sensor cross sections in the results of the [Imbalance Behavior] and [Nonlinear Analysis] algorithms for joint display on the chart.
Added selection of the spectrum in the results of the [Waterfall diagram] algorithm by clicking the LMB or using the arrows on the keyboard.
Added placement of flags on the selected spectrum in the results of the [Waterfall Diagram] algorithm by double-clicking the LMB.
Added a command to convert [Quasi-linear connection] with parameterized stiffness and damping matrices to the [Connection] element for the selected mode.
Added a button to convert the axis from rpm to Hz when sorting by rpm in the results of the [Imbalance Behavior] and [Nonlinear Analysis] algorithms.
Added calculation stop in case of an error in the script of the [Custom connection] element.
Improved work of the variable editing dialog. When you click on the cells in the table, a point is marked on the graph.
Updated chart output module.
Improved visualization in the 3D view of the model.
Fixed a crash during successive fast switching of sections in algorithms for post-processing the results of non-stationary analysis.
Fixed crash when canceling (Undo) deleting an algorithm from a model.
Fixed expansion of the model into assemblies when moving from algorithms to a model.
The basis was not automatically recalculated if a variable in the model was changed.
The basis was not automatically recalculated if elements were switched on/off in groups and when submodels were reloaded.
Fixed model loading from scripts with Cyrillic on the way.
Fixed minor errors when exporting to a script.
Fixed launching the console solver with models with Cyrillic characters in the path or model name.
Fixed memory leaks during sequential calculations of the [Nonlinear Analysis] algorithm.
Fixed artifacts from old data on successive calls to the dialog for outputting forced vibration shapes.
Fixed reset of zoom and results settings when switching algorithms.
Fixed crash after multiple (about 100) switching of views and algorithms.
Changes in DYNAMICS R4.13.4.6230
Added functionality for stiffness and damping calculation for Annular seal in Fluid bearing calculation tool.
Hysteretic friction model has been introduced for AirFoilBearing in Fluid bearing calculation tool.
Improvement of the incremental calculation stability AirFoilBearing.
Memory leak in sequential Transient Response calculations was fixed.
Changes in DYNAMICS R4.13.0.6000
Added functionality for calculating gas bearings:
Petal gas-dynamic bearings (Air Foil Bearing);
Cylindrical gas dynamic bearings with a rigid housing;
Multi-wedge gas-dynamic bearing with a rigid housing.
In plain bearings, the search for the equilibrium position at low rotational speeds has been improved.
In plain bearings, a button has been added to change the order of calculation to the reverse one in terms of rotation speeds.
The [Nonlinear Analysis] algorithm has been added with the functionality of calculating gyroscopic moments along the model sections during aircraft evolutions.
Fixed resetting saved font settings of the graph rendering module when using signal post-processing algorithms.
Added saving the selected font size on charts between program restarts.
Added the [misalignment switch] option to the [Plain Bearing] element.
Fixed export of elements of the [Custom link] type to the modeling command interface script.
Added support for all types of the [Dynamic Load] element in the modeling command interface.
Added -run_script command to console solver options.
Added translation to parameters to previous innovations.
Fixed a crash when working with the properties of the [Nonlinear Analysis] algorithm after switching the output of results on models with assemblies.
Fixed a memory leak when switching from the [Nonlinear Analysis] algorithm to other algorithms or model editing and vice versa.
The list of additional calculation parameters for the [Plain Bearing] element has been corrected.
Changes in DYNAMICS R4.12.5.5920
Added a visualization switch for only one of the gears to the gears.
Added support for Transmission Transparency and Color Control to Gears.
The command to invert the connection of the sides of the link has been added to the link context menu.
The [Open submodel] command has been added to the context menu of Submodels. The model file associated with the submodel opens in a new window.
Added control over the output of result values (zero-to-peak, peak-to-peak, mult) to the Unbalanced Behavior.
Functions for working with [Quasi-linear connection] elements in the non-linear mode have been added to the modeling command interface.
In the model validation system, when calculating the imbalance behavior, a check has been added for the presence of at least one included imbalance. If not, an error is generated after attempting to calculate.
Added compilation of a non-linear element script to the Validate call.
Added saving font selection settings for titles and labels of axes in the graph output component between program restarts.
Added the creation of a new group when using the Add to last group command when there are no groups in the model.
An example has been added to the tutorial on calculating reactions in flexible rotor supports.
Accounting for the taper angle of each of the gears has been added to the calculation of systems with bevel gears. Previously, the total angle between the shafts was taken into account.
Fixed a bug that appeared in version 4.12.0 when modeling spatial systems. Instead of the right coordinate system, the left one was used.
Fixed inaccuracy in calculating axial reactions in gears with a non-zero tooth bevel angle.
Fixed taking into account several imbalances set at one point in the Imbalance behavior algorithm. Only one counted. In the non-stationary analysis, all were taken into account.
Fixed output of amplitudes of vibration velocities and vibration accelerations in the Unbalance behavior algorithm for multi-shaft systems for imbalances.
Fixed a crash when deleting a variable in the Parametric Analysis settings.
Removed option context menu call for lists.
Fixed visualization of reference pictures in the Element Results and Fluid bearing calculators dialogs for screen settings with a scale of more than 100%.
Fixed crash of the program when calculating the basis with Rfreq=0. Added ban on setting 0.
Added a ban on the calculation of vibration modes if the calculation of frequencies ended with an error.
Added a ban on connecting variables to length parameters and coordinates of extended elements.
Fixed loading of previously created models including roller bearing.
Fixed crash in version 12 when trying to add a section by double clicking on the model.
In the bearings calculation dialog, the selection of the bearing template was removed when loading a file with settings.
Fixed TiltingPad calculation of plain bearings with the calculation of viscosity by temperature (the calculation did not start).
Fixed a crash in the dialog with editing the double stiffness and damping matrix when calling the matrix calculator without selecting a matrix for transfer to the calculator.
Fixed a crash when adding a Generalized element to the subsystem by double clicking in the z1-z2 mode.
Fixed import of plain bearings for the reverse order of rotation speeds (calculations from maximum to minimum speed).
Fixed the lack of automatic recalculation of the basis when switching on / off through a group of elements affecting the basis.
Fixed crash when trying to add links to an empty assembly using the Ctrl+L hotkey.
Fixed appearance of duplicate links to an element when added to a group.
Corrected the calculation for the non-linear element [Sliding Bearing] in bearings with a negative rotor speed.
Fixed resetting sorting by rotation speed for models with assemblies.
Changes in DYNAMICS R4.12.0.5630
Added element [Misalignment of shafts], for connection between rotors with the same rotation speed in the presence of misalignment in the shaft connection.
Added module for calculation of coefficients of rigidity and damping of plain bearings (DynFB):
Cylindrical bearing with axial grooves [Axial groove journal bearing];
Bearing with offset segments [Offset half journal bearing];
Elliptical and multi lobe journal bearing;
Tapered land journal bearing [Tapered land journal bearing];
Threshold bearing [Pressure dam journal bearing];
Tilting pad journal bearing.
Added an option to display the Natural Frequency Map only in the range 25% above the maximum rotation speed (filtering the high frequency range).
Added keyboard shortcut Ctrl+G – adding an element to the last active group.
A command has been added to the context menu of Groups — Create Group. Keyboard shortcut Ctrl+G.
Added a button to the matrix editing dialog to create a new variable when attached to a cell.
Added opening of the variable editing dialog when double-clicking on the connected variable in the matrix of stiffness, damping, compliance.
A command has been added to the context menu of the Variables group — Create a new variable. Keyboard shortcut Ctrl+Shift+V.
A command has been added to the element parameter context menu — Create a new variable. Keyboard shortcut Ctrl+Shift+V.
Fixed tree collapse when deleting a variable.
Fixed: by double-clicking on the name of a variable connected to a parameter, the variable editing dialog opens. Or in the context menu – “Extended properties”.
Added captions to the columns in the table for setting the properties of variables in the settings dialog of the Parametric analysis algorithm.
Added display of the stiffness and damping matrix when double-clicking on the bonds in the 2D model view.
Changed the selection of active elements in the 2D view of the model. Context-sensitive selection is available when the Ctrl button is pressed.
Changed the behavior when adding subsystem elements when there is no active subsystem element in the model tree.
Removed the request to select the place of adding the Rotation speed element if the active element of the subsystem is selected.
Added keyboard shortcut Ctrl+L – creates the [Connection] element in the active assembly.
Added keyboard shortcut Ctrl+Shift+L – creates a [Link] element with a parent assembly request.
Added keyboard shortcut Shift+L – adds the [Quasilinear Link] element.
The [Add Connection] command has been added to the context menu of the [Connection Point] element.
When you add any link to a model from the element library tree with the active Link point element in the model tree, a link is created with a connection to the active link point.
Fixed reset of assembly selection in the results filter of the [Imbalanced Behavior] and [Nonlinear Analysis] algorithms when switching to the model and back.
Fixed crash when adding elements to an empty model and then removing them.
Added field for editing the path to the database of materials.
Fixed crash when selecting a cell in an empty table in the bearing data import dialog.
Added cleaning of intermediate results of the basis calculation when starting the calculation Nonlinear analysis. Lack of cleaning led to a halt in the calculation on some complex models and the use of a saved basis was required.
Fixed error “value out of range: Visibility 0 <= -1 <= 1” that appeared when changing the color of structural elements of the “Assembly” type.
Fixed work with adding an intermediate section by double clicking on the model, if the active element is a point element. There was a duplication of a point element.
Fixed filtering of parameters in the “Mass” element when choosing Vis as: Disk -> Blades Only -> Vis as file.
Fixed adding a section to a conical beam or shell. The setting was reset and the element turned into a cylindrical one.
Added keyboard shortcut Ctrl + LMB click (Ctrl + click left mouse button) when adding an element. The element is added with dimensions at the cursor position, not the dimensions of the previous element.
Fixed the display of the position arrow of the center of mass of assemblies and subsystems that have a z-shift.
Changes in DYNAMICS R4.11.0
A new element [Bimet Beam] has been added — a bimetallic beam.
A new element [Beam MKD] has been added — a beam with separately adjustable diameters of the mass-inertia part and the rigid part.
The work of the non-linear element [Script-connection] with algorithms in Python has been significantly optimized.
The speed of calculation of non-stationary analysis of linear systems has been significantly increased.
Optimized adding variables to the model.
Added the ability to delete all selected pairs of values in the variable editing dialog.
Changed the aspect ratio of the orbit chart when copying to the clipboard to 1:1.
Fixed a drop in the calculation of Kara of natural frequencies for a parameterized model with Basis recalculation when changing the number of forms from mode to mode.
Added initialization of the matrix in the matrix calculator when calling it from the stiffness or compliance matrix dialog.
Fixed operation of the [Copy link settings] and [Paste link connection] commands in the context menu for links with parameters in units of measure other than the default ones.
Added selection of visualization of the active element Imbalance Fixed reset of some parameters when copying beams between models.
Fixed crash when displaying data in the Waterfall chart.
Fixed copying of elements.
Updated integration with Python to version 2.7.14.
Updated version of Guradant dongle driver.
Updated Guardant Net floating license server.
Changes in DYNAMICS R4.10.6
Added output of analytical stiffness and damping coefficients to the extended output of non-linear elements [Plain Bearing] and [Damper] in a rotating coordinate system.
Added hierarchical structuring of variables. By double clicking on the [Variables] node in the tree panel of the library of elements and algorithms on the right while holding down the Ctrl key. Or, before adding, activate the desired [Variables] node in the model tree panel on the left.
Added the ability to manage warnings on material properties in the panel of the model root node [System].
Added the ability to manage “TODO:” warnings in the panel of the model’s root node [System].
Added import of only non-zero columns in the [Import bearing from table] dialog.
Added improvements for the model audit script:
[Group] status switching command added to the context menu;
Double clicking on an element of type [Connection], [Quasilinear connection], [Generalized element] in the model tree will open the matrix editing dialog;
Double-clicking in the model tree on the element [Quasi-linear connection] with parameterized stiffness and damping coefficients in radial directions opens the [Import bearing from table] dialog;
Double-clicking on the [Squirrel Wheel] element in the model tree will open the element’s extended properties dialog;
Double clicking on the [Custom connection] element in the model tree opens the script editing dialog;
Double-clicking on the [Variable] element in the model tree opens a dialog for setting the function for changing a parameter;
Double clicking on the [Axial force] element in the model tree opens a dialog box for calculating the critical Euler force for bar compression;
Corrected the calculation of the algorithm [Unbalance Behavior]. Incorrect calculation of systems with a non-zero imbalance phase;
Fixed calculation of models with non-linear element [Damper]. The solution diverged for the damper variant with type [long], [pi-film];
Fixed a bug that caused the message “Encountered an improper argument” to appear when selecting the [Algorithms] node in the model tree;
Fixed a problem with filling in the Kxx variable when replacing an existing link in the [Import bearing from table] dialog;
Fixed loading of data from a text file in the [Import bearing from table] dialog when reloading different files in order to view the contents;
Fixed import into an existing link if no variables are connected to it.
Changes in DYNAMICS R4.10.5
Added [Axial Force] element. Allows you to simulate the change in frequency bending modes.
In the [Quasi-linear connection] element, the choice of the connection accounting mode “modal” or “nonlinear” has been added. In the “non-linear” mode, the user can get the output of reactions for this type of connection.
Added the [misalignment switch] option to the [Quasi-linear connection] element in the “non-linear” mode. Allows you to set the static displacement of the bearing housing relative to the line of support centers.
Added a dialog for displaying calculated information on a finite element (mass-inertial characteristics and compliance matrix).
Added multiplication and division of the current parameter with keyboard shortcuts.
Added. When working in the [length] edit mode, a new element is added using the parameters of the last section of the previous element.
Added color highlighting of user-selected gearing.
Significantly improved sorting algorithm of the Natural Frequencies Map.
Changed and added visualization colors of elements. The color menu has been moved up a level.
Added HowTo section on modeling the effect of axial force ([Axial Load] element).
Added a HowTo section on modeling non-synchronous excitation in the [Imbalance Behavior] algorithm.
Added a HowTo section on automating tabular data entry when creating a model using scripts.
Reference materials added.
The designation of the stiffness and compliance matrix elements has been corrected. Replaced rows and columns. The order of the elements in the matrix remains the same.
Fixed output to the log values of vibration displacement, vibration velocity for the current point on the graph.
Fixed element color reset when converting a beam to a shell or vice versa.
Fixed conversion of a conical shell with a constant inner diameter into a beam.
The violation of the continuity of the elements of the subsystem is corrected when the value z2 is less than z1 in the extended element.
Fixed z2 resizing of the left extended element when changing z1 of the right element.
Fixed Move [Assemblies], [Subsystems], [Relationships] to another [Assembly]. The transferred object is copied (corresponds to Copy+Paste). When the Shift key is held down, the object is also deleted by the old location (corresponds to Cut+Paste).
Fixed window scale when adding an element to an empty model.
Fixed a crash when repeatedly switching waveforms on complex models with a large number of sections. Fixed memory leaks when working with 3D model display when switching waveforms.
Fixed a crash when calculating with the [Dynamic Load] element located outside the shaft or housing subsystem.
Changes in DYNAMICS R4.10.0
Added non-linear element [Crack].
Added non-linear element [Seal Floating Ring].
The [Base mass] element has been added with the setting of mass values by degrees of freedom.
Added output in the algorithms [Imbalanced Behavior] and [Nonlinear Analysis] XY and XYZ charts (several curves on one chart).
Fixed editing coordinates in the dialog for adding a section to an existing element.
Fixed a crash at the end of the [Nonlinear Analysis] calculation with clearing the results if there is a previously loaded calculation.
Synchronization of the name of the element and its type has been added when automatically replacing elements Beam with a shell.
The [Update element names] command has been added to the context menu of subsystems to synchronize the name with the element type.
Added display of mass-inertia characteristics of the active element in the 2D model window.
The calculation of vibration modes in the [Natural frequencies] and [Critical speeds] algorithms for models with asymmetric stiffness and damping matrices has been corrected.
Fixed program crash when switching to wire mode, active subsystem, etc. in forced oscillation animation mode.
The calculation of the oscillation modes of the [Eigenfrequencies] and [Critical speeds] algorithms for systems with asymmetric stiffness and damping matrices has been corrected.
Corrected restoration of the full 12×12 stiffness matrix for systems with non-symmetrical matrices and a pliable base.
Fixed a crash in the program when calculating a parametric analysis map for natural frequencies with the basis recalculation turned off.
Fixed fast transition by double clicking to the subsystem section from the connection settings (connection via body). Previously, the transition occurred without taking into account the displacement of the local SC.
Fixed program crash when pressing the [=] button in the variable editing dialog in the absence of entered data.
Fixed a crash on the link context menu command [Global Coordinates] when connecting a link only to Side2.
Fixed crash when switching the list of critics in the Critical Velocity Map during recalculation.
Changes in DYNAMICS R4.9.0
Added the [Squirrel cage link] element with a dialog for selecting protein parameters by stress and stiffness.
Added output of forms in the 2D chart window with filtering by assemblies and subsystems.
Added output of marks of multiple harmonics for the current position of the cursor in the results processing algorithm [Fourier Spectrum].
The ability to change the function of the overlay window has been added to spectra and waterfall diagrams.
Added to the protocol are tables of energy output by bonds, subsystems and frequencies.
Added the ability to display the allowable frequency zone on the Locus diagram according to API610.
Added the ability to overlay variables on the map of critical speeds.
Added to [Import bearing from table] the ability to load bearing stiffness data from a text file.
Added additional visualization of the [DynamicLoad] element. In the [General], [Impulse], [Step] modes, the load is shown according to the set values. In [Unbalance] mode, it is shown as unbalance.
Added output of AF and SM by API684 in the algorithm [Imbalanced Behavior].
Added display of maximum values in the algorithm [Unbalance behavior].
When selecting loads in the [Internal] section output, the force jump (response) is now shown in the links.
Added auto-change of the group designation with the addition of [+] or [-] depending on the state of the group switch.
Fixed setting of graph styles in the [Imbalance Behavior] and [Nonlinear Analysis] algorithms when displaying multiple sections.
Added validation of material parameters from the model database.
Fixed crash when editing a newly added [Seismic excitation] element.
Fixed crash when inserting a table into [Import bearing from table] to create new links.
Changes in DYNAMICS R4.8.8
Added automatic splitting of cylindrical shells when placing point elements and setting [cs].
A command to start validation of model input data has been added to the context menu of the model tree.
Added functionality for defining interpolated function and argument values to the variable editing dialog.
Added transition to related objects by double clicking on the name of the parameter (1st column, transition to variables, connection points, subsystems, etc.).
Added a dialog with simultaneous output of the stiffness and damping matrix by double clicking on the parameter name ([stiff_matrix] or [damp_matrix]) or in the context menu of the element.
Added the function of inserting an additional section into extended elements by double-clicking the mouse.
An option has been added to [Assembly] with setting the visibility scope of the connection connection list (local – by default, standard behavior, parent – connection points from the assembly to a higher level are visible, global – all connection points are visible).
Added commands to convert beams to shells and vice versa.
The context menu of elements is made dynamic, there are new commands for operations on current elements.
The command to assign the color of the element [Custom] by the user has been added to the context menu of the element visualization settings.
Commands for copying and pasting connection settings and dimensions have been added to the link context menu.
The commands for copying and connecting Link points to links have been added to the context menu of the active element.
The [Add to last group] command has been added to the context menu. Adding spot elements to the last used group.
The [Global section coordinates] command has been added to the context menu to log the coordinates of the current element in the global coordinate system.
The [+] button has been added to the [Natural Frequency Map] algorithm to force the display of rotor speeds in the positive region in the negative direction.
Added saving of the last data buffer when the calculation is stopped [Nonlinear analysis] in the [process_file_save \ step save and clear] mode.
Added the ability to move the chart area after zooming using the scrollbars.
Fixed incorrect calculation of the energy distribution algorithm (Critical speeds) by constraints in models with parametrized elements of the [Quasilinear constraint] type.
Fixed the program freezing on the [Critical speeds] algorithm for incorrectly created models in the absence of algorithm convergence.
Fixed crash when working with the post-processing algorithm [Rolling Bearings]. Crashed when deleting timestamp history points.
Fixed batch output of data on the bearing. Simultaneous for several timestamps output to the clipboard of data on rolling elements. Data was displayed only for the last point.
Fixed a bug in the functionality of the 3D display of the model, sometimes leading to a crash when the model is rotated with the mouse.
Fixed other minor UI bugs.
Added new materials to the help system.
Changes in DYNAMICS R4.8.4
Added element [Groove seal] – allows you to determine the dynamic behavior of a rotor system with seals of this type in a non-linear setting.
Added element [Torque] – perturbations by torsional degree of freedom in non-stationary analysis.
Added element [Stepped shaft] – taking into account additional torsional compliance from the effect of penetration.
A command has been added to the context menu to replace the current element of the [Rigid Link] type with an equivalent [Link] element.
A command has been added to the menu [Tools \ Rigid Link Conversion] — automatic replacement of rigid links with equivalent elastic ones.
Added display of speed and acceleration by the angle of rotation in the section in the results of the [Nonlinear Analysis] algorithm.
Fixed the program crash when trying to calculate in the results processing algorithm [Rolling Bearings] in the absence of a subsystem selection in the Side1 list.
Fixed the lack of visualization of the properties of an element when selecting it in a group.
Fixed operation of the [Dynamic load] element in the [unbalance] mode. The initial load phase was 90 degrees out of phase with the rotor rotation phase.
Fixed other minor UI bugs.
A help file has been added to the [Help \ Guidelines] menu.
Added new materials to the help system.
Changes in DYNAMICS R4.8
Added element – [Seismic impact].
Added element – [One-sided magnetic attraction].
Added torsional compliance to the [Hinge] element.
Added the ability to set orthotropic moment compliance for non-rotating subsystems in the [Hinge] element.
Added import dialog to bearing model from tabular data.
Added output of the resulting values of displacement vectors, forces in the [Nonlinear Analysis] algorithm.
Added export to the Python script of models containing the elements [Hinge] and [Hinge (Pin)].
Added sorting of assemblies and submodels in the models tree (context menu).
Added additional views to the display of waveforms when pressing the Front View and Side View buttons.
Added display of DR in the list of frequencies for the [Natural Frequencies] and [Critical Speeds] algorithms.
Fixed problems with copying subsystems with connection points inside the model. The connection was broken.
Fixed problems with model calculation after using the “Reload submodels” command.
Fixed operation of the button for copying a picture of waveforms to the clipboard.
Fixed selection of connection points from the drop-down list in case of identical names. Added highlighting of the full path to the connection point.
It is forbidden to overwrite the trs file when requesting to save the model.
Fixed crash when Undo removes an element from Groups.
Fixed a crash in the program with a 5 degree angular contact bearing with a geometry corresponding to a negative or zero clearance.
Fixed other minor UI bugs.
Changes in DYNAMICS R4.7
A new non-linear element [Angular Contact Ball Bearing] (two-point contact, 5 degrees of freedom) has been added.
A module for accounting for the temperature state of rolling bearings has been added.
Added a module for accounting for gap changes due to mounting interference.
Added an algorithm for analyzing the state of ball bearings [Rolling Bearings].
Added a new non-linear element – [Dry Friction Bearing].
Added output of tangent stiffnesses and damping to non-linear elements (Ball bearing, Roller bearing, Damper, Plain bearing).
The output of information on the current point in the [Nonlinear analysis] algorithm is now also performed for the modes of sorting by speed and relative time. Increased inference speed for large models.
Added the ability to export charts to the clipboard.
Added saving of graph settings when switching between sections in the [Imbalance Behavior] and [Nonlinear Analysis] algorithms.
Added functionality to save the current chart settings between program launches. SP and GP (Set Print View and Get Print View) buttons.
Added buttons for copying charts and a 3D model to the clipboard.
Added buttons for copying charts to an open Microsoft Word document (Active Python 2.7 must be installed).
Added to the Tools menu is the Matrix Algebra calculator.
Added buttons for managing legends on charts (turn off legends, display to the right of the chart).
Added a button to go to the matrix calculator from the compliance / stiffness / damping matrix dialog.
The addition of data post-processing algorithms to non-linear analysis has been corrected (it was not considered, it was necessary to remove the non-linear analysis algorithm completely).
Fixed restoration of selection in the protocol tree when reopening the dialog.
Added information about the direction of the output data (X, Y, Z) to the headings of the graphs of Unbalanced behavior, Nonlinear analysis and data post-processing algorithms.
Models were not loaded if the subsystem had a trunnion and load elements. Corrected.
Fixed the display of toolbars with buttons when the system resolution was set to 120 dpi (they ran into controls).
Fixed a bug leading to the lack of automatic calculation of model parameters when outputting a protocol.
Fixed other minor UI bugs.
Changes in DYNAMICS R4.6.7
Added check of influence on basis of change by the user of model. The program rarely automatically recalculates the basis.
Added a button for calculating the algorithm [Natural Frequencies] for the time parameter determined by the position of the cursor on the map of natural frequencies.
The calculation of the post-processing algorithm “Span” for systems with weight has been corrected. Results were displayed incorrectly for cases when all signal points were in the negative area.
Added the ability to calculate the basis for models with a large number of elements. The console version of the solver for x64 operating systems is used.
Added warning before outputting animation or 3D graphics for [Nonlinear Analysis].
Added exception of static offset when calculating the RMS post-processing algorithm.
Added the ability to display the parameters of one section of the rotor system model from the parameters of another section in the [Nonlinear Analysis] algorithm.
Fixed some bugs in the interface.
Added new materials to the help system.
Changes in DYNAMICS R4.6.5
The visualization of the [Disk], [Mass], [Generalized element] elements has been improved – extended properties for visualization have been added, and the ability to load a three-dimensional model from an external file (VRML format). The options affect only the rendering of the model.
The output accuracy in the protocol of calculated moments of inertia for beams and shells has been changed to 1e-6 kg*m2.
A parameter has been added to the [Average value] envelope algorithm — the scaling multiplier of the received data. It makes sense when used in transient calculations for a linear system, in Peak-to-Peak mode (factor = 0.5) for comparison with unbalanced behavior.
Improved visualization in 2D model editing mode. When selected in the assembly tree, the subsystems included in it are highlighted in blue. When a connection is selected, the subsystems to which it is connected are highlighted.
Improved deletion of positions in the material database editing dialog. It is now possible to delete several records at the same time not only with the “Delete” key, but also by pressing the [Delete] button in the dialog.
Improved the function of expanding assemblies. Exploding is now stepped, depending on the nesting level of assemblies in the model.
Added a button to display in 2D and 3D mode only the contents of the active assembly.
Added a button to call the root object selection dialog for displaying the model in 2D and 3D modes. Works as a filter in Exploded Subsystems, Explode Assemblies, Active Assembly modes.
The behavior of buttons in the material database editing dialog has been changed. The [Load…] button now leads to the replacement of the database of materials with information from an external file. The [Add…] button adds records to existing ones in the database from an external file.
Changed the storage location of the materials database to the user’s folder. Previously, it was necessary to give additional write permissions to the installation directory.
Fixed [cs] parameter description. Auto splitting is applied not only to cylindrical beams, but also to conical beams.
The description of the parameters of the [Shell] and [Shell with flange] elements has been corrected. In calculations, the given diameters are used as median diameters, not outer ones.
When drawing point masses, rotation speeds, hinges in 2D, additional contours are drawn under the color specified in the properties to make it easier to determine whether a point element belongs to a 2D view.
Fixed some bugs in the interface.
Added new materials to the help system.
DYNAMICS R4.6
A new non-linear element has been added –> Active magnetic bearing.
Added support for Core i7 processors.
Basis calculation algorithms were overclocked by 20%.
Added autosave feature for edited models.
Added mouse wheel zoom in 2D window.
Added to the Chart of Natural Frequencies Chart are the boundary lines of the modes of operation of the object of study.
Fixed crash when saving files to a FAT32 drive.
Fixed: Algorithms for post-processing data loaded from a file with a previous calculation did not work.
Fixed a crash when calculating the basis with a zero specified frequency calculation range.
Fixed a crash when deleting a subsystem containing Connection Points (if there are links connected to them).
Fixed some bugs in the interface.
DYNAMICS R4.5
Trunnion coupling element added.
Added orthogonality matrix check with warnings.
The law of change of the initial damping in the nonlinear analysis has been changed from linear to quadratic.
Help system updated. Added sections on the aerodynamic forces of Alford, Watchel.
Added sections on the simulation command interface. Added help on scripting interface functions.
The orthogonality matrix in the protocol is printed with the corresponding frequencies.
Added a choice of topics in the protocol.
Imbalances are displayed on a phase-by-phase basis.
Improved visualization of the waterfall chart.
Added display of cursor position and reference lines in 2D diagrams.
3D visualization in non-linear analysis now displays data without initial integration.
Added automatic reloading of submodels when adding them.
Added record of model description, title, author from the root element to the file properties.
Fixed some bugs in the interface.
DYNAMICS R4.4
An additional type has been added to the Dynamic Load element. Allows you to simulate non-synchronous excitation by specifying an unbalance load and a slip factor in relation to the rotor speed (allows you to simulate, for example, oil entering the compressor drum).
In addition to the button to explode the model into subsystems, the function of explode into assemblies has been added.
Added forced orthogonalization of shapes with the same frequencies. In some spatial models, poor orthogonality of calculated shapes was observed.
The window of the drop-down list for connecting boundary sections of a connection has been expanded.
Improved visualization of Natural Frequency Map, Stability Map, Parametric Map. With a large number of forms, only a limited number of the first lines were colored, the rest were black.
Added the ability to save the database to a file on disk and load data from disk in the material database editing dialog.
In the mode of tabular display of forms in the algorithms Natural frequencies and Critical speeds, the display of relative damping and logarithmic decrement for the current waveform has been added. Added to the protocol – in the section summary information on frequencies.
Added display of the progress bar in the status bar of the program in the Map of natural frequencies, Parametric analysis, Unbalanced behavior, Non-stationary analysis.
The zero complex component in the tabular output of forms in the Basis algorithm has been removed (values are always real).
Added copying of the Variables group and individual variables between assemblies and models. Added the addition of the group Variables from the library of elements to assemblies.
Added copying of the Materials group and separately between models.
Added copying algorithms from model to model.
Added output of the model name in the log before starting the calculation. Allows you to distinguish calculations in the log while working with several similar models.
Added output of the names of all variables of the same level (parameters are changed simultaneously) in the labels to the axes of the Parametric Analysis.
Improved Unicode support. Added the ability to display the protocol in the presence of element names other than the Latin alphabet and Cyrillic (Korean, for example).
In some elements, the lists of conversion of units of measurement (English system) have been improved.
The capabilities of the model validation system have been slightly expanded.
Changed output of frequency data in Parametric maps from rad/sec to cycle/min.
Fixed some bugs in the interface and the calculation part of the program.
DYNAMICS R4.3
A command scripting interface to the system in the Python language has been added (new features for model parameterization and variant calculations, the ability to write converters from external data).
Improved visualization of 3D models (as well as changing the color and transparency of the model, see the context menu and element properties).
Added logarithmic step to “parametric analysis”.
Errors in calculating energies for links with asymmetric stiffness, with damping in the system close to critical, have been corrected.
The speed of algorithm calculations has been increased.
Added 10 new examples to the tutorial.
Added help system.
Fixed some bugs in the program interface.
DYNAMICS R4.2
A new multi-level network architecture of the model has been created – assemblies, submodels, subsystems.
A new algorithm is implemented for solving the problem of eigenvalues and vectors through the global compliance matrix obtained for a multiply connected, multilevel, spatial system using the method of initial parameters.
Added the possibility of one-dimensional and two-dimensional parametric analysis of the model under study (variable parameters – speed, dimensions, position, stiffness, damping, load, etc.).
Added a map of critical speeds in an extended interpretation – the dependence of critical speeds on any parameter of the model.
A stability map has been added – the dependence of the logarithmic decrement / relative damping coefficient on the rotational speed.
Added parameters to the project description.
An element has been added to create connection points between subsystems and elements.
A relationship has been added, described by an asymmetric stiffness matrix and an asymmetric damping matrix.
A block of algorithms has been added for calculating multi-shaft systems with gears – cylindrical, bevel hypoid, etc.
Added information in the help system.
The library of examples for training has been expanded.
Added Undo / Redo function.
Added the ability to select different measurement systems of units (international, English).
Additions have been made to output model parameters to the protocol.
The [Roller Bearing] and [Ball Bearing] elements have been modified.
DYNAMICS R4.1
Possibility to set any parameters of the model as a function of time.
A new form of specifying stiffness and damping properties of elements and bonds (matrix input).
Possibility to save and load non-stationary analysis data.
Automatic recalculation of the basis.
Possibility of using time-variable model parameters in non-stationary analysis.
Ability to view statistics of the integration process.
Conclusion of potential and kinetic energy by elements of subsystems.
Ability to calculate static deflection and loads from the force of weight.
The possibility of self-creation by the user of modeling elements and their inclusion in the library of the software package.
Added internal friction in materials (for body elements).
A general bar element has been added.
Added a general rigid link.
An information system that includes help information, warnings, error messages.
From DYNAMICS R3.1 to DYNAMICS R4.0
New modular architecture of the software system, built on Windows-based technologies, adapted to the user and the specific needs of the user.
Completely redesigned user interface.
New graphic packages and algorithms for editing and displaying the model of the system being created.
Improved algorithm for calculating natural frequencies and mode shapes.
The possibility of creating a new class of rotor systems – the spatial arrangement of the axes (coaxial, parallel, crossing subsystems).
The possibility of calculating joint bending-longitudinal-torsional vibrations in rotating machines.
New elements for modeling linear and non-linear multi-shaft rotor systems.
Block for solving nonlinear problems of rotor dynamics.
Library of non-linear elements.
Extended library of external loads.
Adaptive methods for integrating equations of motion.
Ability to create a common database of materials for all projects.
Possibility of simultaneous output of information (displacement, load) for any degree of freedom of the rotor system.
Customizable output of initial data protocols and calculation results.