• CN：11-2187/TH
• ISSN：0577-6686

• 机械动力学 •

### 颗粒阻尼器近似理论模型研究

1. 南京航空航天大学机械结构力学及控制国家重点实验室
• 出版日期:2015-02-05 发布日期:2015-02-05
• 基金资助:
国家自然科学基金(11272145)、中央高校基本科研业务费专项资金和江苏省普通高校研究生科研创新计划(CXLX11_0179)资助项目

### Investigation on Particle Damper Based on an Approximate Theoretical Model

YAO Bing, CHEN Qian, XIANG Hongying, GAO Xue

1. State Key Laboratory of Mechanics and Control of Mechanical Structures，Nanjing University of Aeronautics and Astronautics
• Online:2015-02-05 Published:2015-02-05

Abstract: The non-obstructive particle damping (NOPD) has caused people to pay wide attention as a new damping technology, because of its particular advantages, such as temperature insensitivity, radiation resistance, long working life, reliability and so on. People have done much research on the NOPD, but most of them are by experiment and simulation. It is very difficult to study the damping characteristic of particle damper (PD) though theoretical method, due to its high nonlinearity. An equivalent method is developed to model the nonlinear damping of PDs, which can exhibit characteristic of PDs’ energy dissipation adequately. For the Tuned Particle Damper (TPD), a simplified theoretical model is established. And the correctness of the model has been validated by experimental results. The research also confirms that vibration acceleration has a significant effect on the three parameters of equivalent model for PD, and this conclusion is consistent with experimental or simulation results.