基于ANSYS鼓形齿联轴器螺栓联接有限元分析

采用ANSYS对非标准鼓形齿联轴器螺栓联接进行有限元分析．首先，利用UG软件进行联轴器螺栓联接实体建模；然后，用ANSYS软件对其进行有限元分析．考虑螺栓联接的接触特性，通过改变摩擦因数分析螺栓所受的拉伸应力和剪切应力，得到螺栓受拉伸和受剪切的危险截面均在螺母与内齿套法兰结合面靠近内齿套外圆部位；摩擦因数增大时螺栓所受拉仲应力明显减小，而剪切应力变化不大；选择高强度联接螺栓和螺母、通过合理的加工工艺适当增加法兰面的摩擦因数，可保证螺栓联接强度。

Finite Element Analysis on Bolt Connection of Crown Gear Coupling Based on ANSYS

The software ANSYS was used for the finite element analysis （FEA） of the bolt connection of the crown gear coupling （CGC）. The solid modeling of bolt connection of the CGC was established by means of UG,and then it was analyzed by ANSYS. Considering the contact characteristics of the blot connection,tensile stress and shear stress that the bolt suffered were analyzed by changing friction coefficient,it can be obtained that the dangerous parts of tension and shear on the bolt are set in the jointing surface of the nut and flange surface anear the inner gear sleeve ;with the increase of the friction coefficient tensile stress of bolt reduces significantly ,but little change occurs in shear stress. By using high strength bolt and nut and reasonable processing technology to increase friction coefficient of the flange surface ,the strength of bolt connection can be guaranteed.