The Third Superharmonic Resonance of Diesel Shafting Subjected to Harmonic Moment Excitation

摘要

The nonlinear vibration differential equation of diesel shafting subjected to harmonic moment is established by means of Lagrange equation. According to the method of multiple scales for the nonlinear vibration the first approximate solution of the third superharmonic resonance of the system is obtained. Numerical analysis of the influences of the excitation, dunting parameter and damping on the system are carried out, too. At last, the differential equation is simulated by means of Simulink model.