Nonlinear Dynamic Coupling Analysis on Gear System of Automated Mechanical Transmission

摘要

In the process of the automated mechanical transmission operating, one pair of cogwheels are engaged with the other idling. Because both gear pairs are supported on one shaft, the states of them will be mutual coupling. By analyzing the meshing stiffness, mesh damp, support stiffness and coupling state via mode superposition method, the five dimension degree model of automated mechanical transmission has been built and compared with the model which neglects the coupling impact. Simulated in MATLAB environment and calculation of the state response of nonlinear dynamic systems by presenting long-time histories, spectra of the response, poincare maps and FFT spectrum. The results are compared and show the coupling factor will influence the response of the gear system.