Dynamic reliability analysis on transmission system of shearer

Abstract

Mining industry plays an increasingly important role in industrial development of China. The transmission system of shearer loader can be considered as a dynamic model with variable motion, time-varied mesh stiffness and nonlinear backlash. The vibration responses or contact stress should be investigated for safety production in the condition of variable speed and heavy load. An efficient method is proposed to conduct dynamic reliability analysis of the system. Reliability analysis aims at guaranteeing safety in production and improving work efficiency of transmission system in shearer. Reliability sensitivity method is proposed to analyze characteristic and optimize the structure of transmission system in shearer.