Literature Survey of Dry Friction Damper Model and Analysis Method forDepressing Vibration of Rotating Blade

Abstract

Rotating blades are key components in aircraft engine, the vibration characteristics and vibration reduction technology is rather important for engine performance, structural integrity, and work reliability. The dry friction damping structure is most widely used in all kinds of blade vibration suppression method. Firstly, the dynamic modeling and development of the rotating blade dry friction damper are described in detail. Then, the analysis method and development status of the damping characteristic of the dry friction damping structure for rotating blades are introduced. Finally, four types of models are introduced, including blade-ground and blade-blade models based on different structure, dry friction damping mathematical model based on Coulomb law of friction, dry friction damping contact model based on contact point, and dry friction damping contact model based on the relationship of relative motion, so as to provide theoretical and technical support for the modeling design, improving reliability and efficiency of rotating blade damping structure, and reducing vibration and prolonging life.

Keywords

• rotating blade
• dry friction
• damper
• depressing vibration
• numerical analysis