摘要
为揭示柔性铰链的翘曲变形机理,建立了交叉簧片柔性铰链的翘曲模型.对簧片交叉角为90°和径向载荷为0时的两种特例情况进行了分析.通过ANSYS有限元仿真验证了此类柔性铰链翘曲变形的存在性.提出了一种可消除交叉簧片柔性铰链翘曲问题的可行方法,即采用簧片对称交叉布局.仿真和实验均表明:采用对称布局的交叉簧片柔性铰链,在受到广义载荷作用时,其变形仅存在于功能方向,翘曲变形得到了完全抑制.
In order to reveal the warping deformation mechanism of the flexible pivot, a model of the cross-spring flexural pivot was developed. And two special cases when spring crossing angle is 90°and radial load is zero, were analyzed. The existence of warping deformation in such flexible pivot was verified by ANSYS finite element analysis （FEA）. Finally, using springs＇ symmetric cross layout, a feasible method which could eliminate the warping deformation was put forward. Numerical simulation and experimental results all shows that the deformation exists in the functional direction only, and warping deformation is restrained completely when the flexural pivot＇s springs are symmetric crossed.
出处
《北京理工大学学报》
EI
CAS
CSCD
北大核心
2014年第9期886-891,共6页
Transactions of Beijing Institute of Technology
基金
国家自然科学基金资助项目(51275017)
关键词
交叉簧片
柔性铰链
翘曲变形
轴漂
数值仿真
cross spring
flexural pivot
warping deformation
center shift
numerical simulation
