Bifurcation characteristics of planet gear in gear box
Based on the nonlinear dynamic theory,the vibration response state of the gear transmission system is predicted and controlled.Taking the first gear transmission system of a gear box as the research object,the dynamic differential equa-tion is established to study its bifurcation characteristics and stability.The displacement phase diagram and the Poincare dia-gram are obtained.The influence of excitation frequency,power and mesh damping on the bifurcation characteristics and mo-tion stability of the gear system is analyzed.The results show that under the premise of guaranteeing the transmission efficien-cy of the system,larger power and higher mesh damping have a positive impact on the bifurcation characteristics.The chaotic motion is weakened and the system stability is improved,which lays a theoretical foundation for further optimization of the design of the gear box.
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