The tridimensional model of trident chamfer of the special tripod universal joint was established by use of the finite element method in this paper.

• 利用有限元法,对特定三叉杆滑块式万向联轴器三叉槽建立了三维立体模型,并对其在转动过程中的应力变化进行了分析,得到了其应力变化曲线。