摘要
从3-PPRR三自由度可约移动并联机构的单分支受力变形入手,分析了整个机构的刚度,建立了刚度模型。以机构的整体刚度最大为优化目标进行了尺寸设计,使机构所有的尺寸参数都可以表示为驱动参数的线性函数,并得到了机构的刚度同驱动参数的函数关系。分析了机构的整体刚度变化趋势和产生原因,提出了提高机构刚度的若干措施。
From the deformation analysis of one single limb of the 3-PPRR 3-DOF reducible translational parallel mechanism, the stiffness model of the mechanism is set up. An optimal design process based on the stiffness is also presented. The design result is that all the dimensional parameters and the stiffness of the mechanism can be expressed as the linear functions of the driving parameters. The variation and its reason of the stiffness are discussed and some measures to increase the stiffness of the mechanism are presented.
出处
《机械设计与研究》
CSCD
北大核心
2006年第3期23-26,共4页
Machine Design And Research
关键词
并联机构
可约
刚度
设计
parallel mechanism
reducible
stiffness
optimal design
