| This paper introduces the source of the topic and significance, according to the theory of cycloid and the curve of the image under different parameters,The analysis of the effect of parameters on the curve is came up. With the help of experience type connection section and necessary conditions are put forward. According to those conditions determine the extent of the cycloid parameters suitable for the connection.This paper considers only the characteristics of the cycloid profile connection when it is reverse. Warping phenomenon will happen, when the structure of the cross section is not round. So the method of theoretical mechanics is taken to analyze it. In this paper it’s differential equation is pushed out, the location of maximum stress and the engineering algorithm of maximum stress is found.To understand of the features of the cycloid profile connection, we compared it with rectangle spline and involute spline. Firstly listed the three kinds of structure strength calculation. In addition because it is not a problem of 2D in practice, the contaction has to be taken into account. So in order to know stress distribution characteristics and contact conditions, the statical analysis and contact analysis of rectangle spline involute spline and the cycloid profile connection was taken with ANSYS Workbench in the same structure size and same load.On the basis of analysis of the finite element results, the fatigue life of the cycloid profile connection and involute spline is analyzed in this paper. In actual engineering vehicles full floating half shaft as the background, two kinds of structure analysis of the fatigue damage and life was taken under more working loads. Under the condition of heavy load and impact, the cycloid profile connection has more advantages. |
