摘要
针对柔性微位移放大机构的结构特征进行分析,利用一组具有不同连杆长度及倾角的微位移放大机构进行算例分析,指出机构中柔性铰链与连杆组成的组合柔性结构是机构的重要组成部分,其中连杆的长度与其倾斜角的取值影响组合柔性结构的厚度比与长度比,对机构的放大性能起着关键的作用。根据分析结果提出用以提高机构放大比的微位移放大机构设计的一般方法,将其应用于柔性微位移放大机构的改进设计。对改进后的微位移放大机构进行放大性能分析与动力学性能分析,用其结果验证改进设计的有效性与合理性。
The structural characteristics of the compliant micro-displacement amplification mechanism are analyzed, the examples of the compliant micro-displacement amplification mechanisms with different link length and link angel are analyzed, the combined compliant structure formed with flexure hinges and link is important component, the length and the angel of the link effect the thickness ratio and length ratio of the combined compliant structure, which plays a key role on the amplification. The design method is proposed aiming at improving the amplification, which is used in the improved design of the compliant micro-displacement amplification mechanism. The dynamic performance and the amplification of the improved mechanism are analyzed, thus the validity and rationality of the improved design are proved.
出处
《机械设计》
CSCD
北大核心
2014年第8期44-47,共4页
Journal of Machine Design
基金
国家自然科学基金资助项目(50805008)
廊坊师范学院博士基金资助项目(LSBS201306)
关键词
微位移放大机构
结构特征
组合柔性结构
改进设计
性能分析
micro-displacement amplification mechanism
structural characteristics
combined compliant structure
improved design
performance analysis
