Modal analysis of impact test platform

In this paper, the impact dynamics and nonlinear finite element method are analysed systematically. The static analysis of the test platform was carried out, and the result of the static analysis showed that the stress concentration existed in the connector and it had a large strength margin. Modal analysis is carried out on the test platform. Through modal analysis, the natural frequency of the test platform is obtained. The impact load response is determined to be the category of complex impact by comparing the impact loading time of the hammer system. (paper)