Vibration strength performance analysis method considering contact

The invention relates to a vibration strength performance analysis method considering contact and belongs to the technical field of automobile detection. The analysis method comprises the following steps: step 1, establishing a cantilever structural member grid model; step 2, establishing a material nonlinear relation and a face-to-face contact pair; step 3, making modal performance analysis; step 4, making frequency response analysis; and step 5, obtaining a vibration intensity stress value of the cantilever structural member, and evaluating vibration characteristics. According to the analysis method provided by the invention, the mutual contact relationship between the cantilever structural parts and the nonlinear relationship of materials are considered, the real vibration strength characteristic of the cantilever structural parts can be obtained, and the accuracy of performance evaluation of the cantilever structural parts is improved. 本发明涉及一种考虑接触的振动强度性能分析方法。属于汽车检测技术领域。分析方法包括以下步骤：步骤1，建立悬臂结构件网格模型；步骤2，建立材料非