摘要
用于空间科学实验的主动振动隔离系统采用洛伦兹力驱动的方法,将被隔振的平台悬浮于空中.对电磁驱动部分的动力学分析是各种设计和实验的基础.提出了一种驱动器的结构,并对驱动器的永磁部分进行了有限元分析,包括模型的建立、静力学分析、模态分析、瞬态分析、谐响应分析和谱分析,由此验证其力学性能可以满足设计要求.为优化结构设计,减小驱动器尺寸,降低设计开发成本,缩短设计开发周期,提高产品质量奠定了基础.
Active vibration isolation system applied to microgravity vibration isolation has utilized Lorentz force electromagnetic actuator to realize the levitation of isolated platform in the space. The Dynamic Analysis of the Electromagnetic Actuator （DAEA） is the basis of design and experiments. In this study, a structure of the actuator was presented, the finite element analysis of the permanent magnet part was implemented and the mechanical feature was validated. With the establishment of electromagnetic actuator model, the finite element analyses have been conducted, which include static force feature analysis, implement modal analysis, transient analysis, harmonic response analysis and spectrum analysis as well. These analyses have paved the way for system structure optimization and actuator size reduction as to decrease the development cost, shorten the designing period and promote the product quality.
出处
《空间科学学报》
CAS
CSCD
北大核心
2010年第1期73-78,共6页
Chinese Journal of Space Science
关键词
主动隔振
电磁驱动
ANSYS
有限元分析
Active isolator, Electromagnetic actuator, ANSYS, Finite Element Analysis （FEA）
