颗粒阻尼技术在制动鼓减振方面的应用研究  

Application of particle damping in vibration attenuation of brake drum

作　　者：夏兆旺[1] 魏守贝 温华兵[1] 刘献栋[2] 

机构地区：[1]江苏科技大学能源与动力工程学院,江苏镇江212003 [2]北京航空航天大学交通科学与工程学院,北京100191

出　　处：《振动工程学报》2014年第6期893-899,共7页Journal of Vibration Engineering

基　　金：国家自然科学基金资助项目(11302088);江苏省自然科学基金青年基金资助项目(BK2012278);上海交通大学海洋工程国家重点实验室开放基金资助项目(1405)

摘　　要：颗粒阻尼器具有不改变结构形状、附加质量小等特点,在其他被动阻尼常失效的恶劣环境下仍具有良好的减振效果。然而,传统的颗粒阻尼器设计通常依靠试验的方法。研究了颗粒阻尼技术在汽车制动鼓减振降噪领域的应用,基于离散元和有限元的耦合方法分析颗粒阻尼在汽车制动鼓上的应用,使颗粒阻尼减振器在旋转结构上的研究成为可能。结果表明:颗粒阻尼技术在汽车制动鼓减振降噪领域的应用是可行的,仿真结果与试验结果具有很好的一致性。A particle damper is known by the properties of the unchanging the shape of the structure and its negligible addition mass,and it is also known by its good damping effect in harsh environments when other passive damping failed.The design methods of traditional particle damper mainly rely on the experiment.The application of particle damping will be studied in vibration and noise reduction of brake drum.A coupling simulation algorithm based on the discrete element method and finite element method is used to calculate and design the particle damper in the brake drum.This method makes it possible to investigate the properties of the particle damper in a rotating structure.The research results show that the presented particle damping is effective,and reasonable correlation is demonstrated between simulation and test.

关 键 词：减振 颗粒阻尼 制动鼓 离散元法 

分 类 号：O328[理学—一般力学与力学基础] TB535.1[理学—力学]