A knee joint motion segment three-dimension finite-element model was reconstructed. The result of finite-element analysis of patella model indicated the stress mainly concentrated and distributed in the superior pole and inferior pole of patella. 建立了膝关节运动节段的三维有限元模型,对髌骨的有限元分析结果显示应力集中区分布在髌骨的上极和下极。
By the deflection test, the deflection produced by the deformation of joint field can be gained, accordingly, the change in the included angle that the beam axis relative to the pole axis can be gained too. 通过挠度测试,可以求出因节点域变形导致梁发生转动而产生的挠度值,进而可以得到梁柱夹角发生的改变量。
Finally, to influence robot joint torque heavy factor, it is manipulator every pole pieces of mass center that go on sensitiveness analyse, offer the really believable data for the design which optimizes the robot. 最后,对影响机器人关节力矩较大的因素,也就是机械手各杆件质心进行敏感性分析,为优化机器人的设计提供确实可信的数据。