6—SPS型并联机床基于动态特性的优化设计  

Design Optimization Based on Dynamic Characteristics of 6-SPS Parallel Kinematic Machine Tool

作　　者：汪琦[1] 王立平[1] 汪劲松[1] 李育文[1] 

机构地区：[1]清华大学精密仪器与机械学系,100084

出　　处：《中国机械工程》2003年第11期908-912,共5页China Mechanical Engineering

基　　金：国家863高技术研究发展计划资助项目(2001AA421110)

摘　　要：为了从设计着手改善 6—SPS型并联机床的动力学特性,依据所建立的该类并联机床XNZ63的结构动力学模型,求解并分析了其动态特性。讨论了材料参数和截面参数等参数的变化对XNZ63的动态特性的影响规律,并据此对这些参数进行了优化设计。仿真实验结果表明,经过优化设计,XNZ63的动态特性得到了明显改善,为 6—SPS型并联机床的优化设计提供了理论依据和方法。A flexible structure dynamic model of 6 -SPS PKM is established in this paper. By solving this model, the dynamic characteristics are attained. Several factors such as material and intersection parameters are optimized in order to obtain better dynamic performance than that of the initial ones. The simulation results show obvious improvement of the dynamic performance, so that the powerful theoretical basis is raised.

关 键 词：6-SPS型并联机床 结构动力学 动态特性 优化设计 

分 类 号：TG659[金属学及工艺—金属切削加工及机床]