Modal and vibration response characteristics of rotating support platform

Abstract

In order to improve the strength and stability of the rotating support platform, modal and stress characteristics were simulated and calculated based on finite element analysis method. In Hypemesh, the model of the rotating support platform was established. In Abaqus, boundary conditions and loads were defined, and the natural frequencies and vibration modes of the first four orders were obtained. Based on the structure and stress characteristics of the crossbeam, different damping technologies were compared and analyzed, and rubber damping scheme was selected and designed. Through time mileage analysis, the load response and damping effect of damping scheme were verified. The results show that the rubber damping scheme can reduce the maximum stress by more than 15 % without changing the natural frequency substantially.