一种主动电磁式动力吸振器的研究与设计

STUDY AND DESIGN OF AN ACTIVE ELECTRO-MAGNETIC DYNAMIC VIBRATION ABSORBER

在传统的动力调谐吸振理论基础上,通过对动力学和电磁学的研究,得到了一个刚度可控的电磁弹簧,具体地讨论了该电磁弹簧的形成原理,以此电磁弹簧为核心元件,研究了一种固有频率可在线调整的主动电磁式动力吸振器。通过对设计实例进行仿真,验证了这种方案的可行性和有效性。

Through study involving dynamics and electromagnetism,a new electromagnetic spring(EMS) with stiffness controlled is obtained,and then the paper concretely discusses th formation principle of the EMS.Its stiffness is controllable.Taking it as the kernel element a new type active electromagnetic dynamic vibration absorber(EMDVA)whose natural frequency can be adjusted according to the frequency of the excitation force is designed.The feasibility and validity of the theory is validated by of the example designed.