Nonlinear Characteristics of Transmission System of Shearer Cutting Unit

doi:10.16182/j.issn1004731x.joss.201801032

Abstract

Abstract: The nonlinear dynamics model of gear transmissionsystem of shearer cutting unit is established. The nonlinear dynamics theory of gear is applied to the transmission system of shearer cutting unit, and the effect of damping ratio and vibration frequency on the nonlinear dynamics of the system is considered. Fourth order Runge-Kutta method with variable step is employed to solve the nonlinear systems differential equations. The phase plan and Poincare section of the system response are obtained with different parameters. The results show that the nonlinear influence of the displacement response of the solar wheel is stronger when the damping ratio is lower. And when the excitation frequency from small to large in a certain interval, the displacement response of the solar wheel becomes chaos, and then changes back to periodic phenomenon. This research method provides theoretical support for the related nonlinear problem of the gear transmission system of the shearer cutting unit.

Key words: shearer cutting unit, gear transmission system, nonlinear dynamic model, response analysis

CLC Number:

TD421

Zhang Dongsheng, Yu Haiyang, Xu Jianbo, Li Yan. Nonlinear Characteristics of Transmission System of Shearer Cutting Unit[J]. Journal of System Simulation, 2018, 30(1): 249-257.

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