The Fatigue Strength Analysis of Knuckle Arm based on the Cosine Load

摘要

The knuckle arm lever of cylindrical surface is easy to break in actual application. The non-uniform load structured by cosine load types and APDL are applied. The finite element calculating model of knuckle arm is established by using ANSYS in this paper, the finite element simulating is proceeded, and the truth break factor is founded. Through the structure optimization design of the knuckle arm, and the fatigue strength analysis of the improved structure, the information can predict the fatigue life. The above works can be the means for providing essential theoretic gist for further improving the structure design.