Simulation and Test of Spindle Mode of Planetary Variable Speed Device

Abstract

Spindle is the main bearing part of high speed tracked vehicle transmission device, which needs to carry large power and torque. Modal testing can provide basis for the verification and modification of the dynamic model of transmission structure, response prediction, vibration control, qualitative analysis and dynamic coupling analysis of transmission system. In this paper, the mode of the spindle is simulated by finite element method, and the free mode of the spindle is tested by hammering method. The results show that the modal mode simulated by finite element method is consistent with the mode tested, and the error range between the measured modal frequency and the simulated modal frequency is less than 3%. The simulation and test of spindle mode have important theoretical significance and engineering application value for realizing the optimal design of spindle.