ROTOR DYNAMICS OF TURBOMACHINERY

Engineering & Consulting Centre for Dynamic Problems in Rotating Machinery

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contents

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ROTOR-BEARING DYNAMICS TECHNOLOGY, DESIGN GUIDE

DAMPER SUPPORTS

Written and edited by professor M.Leontiev, Aircraft Engine Department,
Moscow Aviation Institute

• 1. INTRODUCTION
• 2. DAMPER SUPPORTS TYPES
• 2.1 Hydrodynamic damper supports
• 2.2 Supports with Hydrodynamic damper and flexible element
• 2.3 A damper support with a flexible ring (“Allison” ring)
• 3. MAIN STAGES OF DAMPER SUPPORTS DESIGN
• 3.1 Topics
• 3.2 Design of a Hydrodynamic damper support
• 3.2.1 Topics
• 3.2.2 Evaluation of HD effectiveness by a set of non-dimensional parameters
• 3.2.3 Evaluation of HD stiffness and damping
• 3.2.4 Approximate models of the damper performances
• 3.2.5 Matching of a damper performances to a rotor system
• 3.3 Design and analysis of a support with a Hydrodynamic damper and flexible element
• 3.3.1 Topics
• 3.3.2 Flexible element analysis
• 3.4 Design and analysis of a support with a flexible ring
• 3.4.1 Topics
• 3.4.2 Choice of the damper main dimensions
• 3.4.3 Calculation of a ring flexibility
• 4. EXAMPLES OF DIFFERENT DAMPER SUPPORTS DESIGN
• 4.1 Design of a HD support
• 4.2 Design of a HDFE
• 4.3 Design of a damper support with a flexible ring
• 5. REFERENCES
• APPENDIX 1
• APPENDIX 2
• APPENDIX 3