Dynamics Analysis And Optimization Of The Gear Tranmission System For A Opto-Electronic Stabilization Platform

Gear as an important form of mechanical transmission is widely used in opto-electronic stabilization platform transmission system, its dynamic performance will directly affect the stability of the platform structure reliability. For nonlinear vibration problems of gear, this paper is mainly concerned with the nonlinear dynamic characteristic of gear system on the basis of backlash, gear mesh stiffness and combining friction by means of qualitative and quantitative methods.This article took the azimuth servo driving system of the stabilization platform as the object of study, established the gear non-linearity dynamics model with the centralism quality method, considering the quality of the vibration of multiple degrees of freedom and flexibility of gear bearing. Carries on the modeling simulation and solves using MATLAB/Simulink and four staging length of stride Runge-Kutta method, a comprehensive analysis and comparison of different parameters in the dynamic response of nonlinear systems. On the base of the optimal design theoretical analysis, a multi-objective optimization model of gear transmission is proposed. Optimization results show that dynamic characteristics is improved after optimization and verified that the system dynamics model and optimal design model was reasonable and correct.