摘要
设计一种新型的磁悬浮式动力吸振器,与普通的机械式吸振器相比具有无机械接触,结构简单、使用寿命长等优点。首先分析磁悬浮式动力吸振器的吸振原理并建立了磁悬浮式动力吸振系统的理论模型,然后根据主系统的特性设计与之相匹配的磁悬浮式动力吸振器,最后通过仿真验证磁悬浮式动力吸振器的减振效果。仿真结果表明:当磁悬浮式动力吸振器的固有频率与外部干扰力的频率相一致时,主系统的振动减小了78.6%,且磁悬浮式动力吸振器吸振质量的振动可以满足机械结构的要求。
A new type of magnetic suspension dynamic vibration absorber is designed in this paper,which has the advantages of no mechanical contact,simple structure and long service life,as compared with ordinary mechanical vibration absorber.The principle of its vibration absorption is analyzed and the theoretical model of its system is established.Then the magnetic suspension dynamic vibration absorber is designed according to the characteristics of the main system.Through the simulation,its damping effect is verified.The simulation results show that when its natural frequency is consistent with the frequency of the external disturbance force,the capability of its vibration absorption meets the requirements of the mechanical structure.
作者
王璠
李国畅
金超武
韩文龙
闫旭
WANG Fan;LI Guochang;JIN Chaowu;HAN Wenlong;YAN Xu(College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)
出处
《机械制造与自动化》
2019年第3期82-85,共4页
Machine Building & Automation
基金
南京航空航天大学研究生创新基地(实验室)开放基金(kfjj20160521)
关键词
磁悬浮
动力吸振器
减振效果
固有频率
振动
magnetic suspension
dynamic vibration absorber
damping effect
natural frequency
vibration
