工程设计学报2016，Vol.23Issue(6)：585-591,7.DOI:10.3785/j.issn.1006-754X.2016.06.010
抗压内LET柔性铰链的建模及分析
Modeling and analysis of compressive inside LET flexure hinge
摘要
Abstract
Based on the inversion principle,a new compressive inside LET flexure hinge is presen-ted to improve the axial compressive stiffness of inside LET flexure hinge.Firstly,the structure of compressive inside LET flexure hinge was designed considering the deformation characteristics of compliant segments comprehensively.Secondly,the theoretical calculating models of the e-quivalent compressive stiffness and the equivalent bending stiffness for the compressive inside LET flexure hinge were set up respectively by using spring model.Meanwhile,correctness of two theoretical calculating models was validated by finite element analysis.Finally,the finite ele-ment simulation results were demonstrated by comparing the compression deflection and bending deflection of the compressive inside LET flexure hinge with that of the inside LET flexure hinge. The results showed that bending stiffness of the compressive inside LET flexure hinge was only 1.195 times of that for the inside LET flexure hinge,but the compressive stiffness was 24.532-28.141 times of that for inside LET flexure hinge.The compression stiffness of compressive in-side LET flexure hinge is significantly increased in the case that the bending stiffness does not change obviously,which also proves the superiority and the reasoning of the design of the com-pressive inside LET flexure hinge.关键词
平面折展机构/抗压内 LET柔性铰链/等效刚度/有限元分析Key words
LEMs/compressive inside LET flexure hinge/equivalent stiffness/finite element a-nalysis分类
机械制造引用本文复制引用
刘凯,曹毅,周睿,丁锐,葛姝翌..抗压内LET柔性铰链的建模及分析[J].工程设计学报,2016,23(6):585-591,7.基金项目
国家自然科学基金资助项目(50905075) （50905075）
教育部中央高校基本科研业务专项基金重点项目(JUSRP51316B) （JUSRP51316B）
江苏省“六大人才高峰”资助项目(ZBZZ-012) （ZBZZ-012）
机器人技术与系统国家重点实验室开放基金资助项目(SKLRS-2016-KF-06) （SKLRS-2016-KF-06）
