带弹性支撑的颗粒碰撞阻尼的减振机理研究

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Abstract The performance of elastically supported particle impact damper (ESPID) is excellent with double damping structures. To study the damping mechanism of the damper, we establish a dynamical model of the damper. A simulation program is written with MATLAB, which simulates the damping performance of cantilever with the damper. The mentioned dynamic model is verified by comparison of theoretical and testing data. Then using the dynamic model, we discuss the chamber clearance ratio, impactor mass ratio, stiffness ratio, and power ratio. The conclusions are summarized as follow: (1) The dynamic model of the ESPID is reliable; (2) The performance of the ESPID is excellent and far exceed the single impact damper; (3) The best optimized structure parameter combination of the ESPID is: clearance ratio 0.15, stiffness ratio 0.007.

Key words： impact damper particle elastic support dynamical model

Received: 27 October 2015 Published: 28 June 2017

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	Articles by authors
	DU Yan-chen
	ZHANG Hong

Cite this article:

DU Yan-chen,ZHANG Hong. Research of Damping Mechanism on Elastically Supported Particle Impact Damper[J]. JOURNAL OF VIBRATION AND SHOCK, 2017, 36(13): 67-73.

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http://jvs.sjtu.edu.cn/EN/ OR http://jvs.sjtu.edu.cn/EN/Y2017/V36/I13/67

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