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Nonlinear Vibration Forces of Rotor-Bearing-Support System

The nonlinear vibration forces of rotor-bearing-supports system are important to the structural vibration and sound. Based on nonlinear vibration analysis of the system, the vibration equations were solved and the vibration forces were given by numeral simulation. The results show that the motions of forces are complex with the changing of rotary speed. The results could be used to determine the vibration and acoustic radiation of underwater vehicle under complex excitations.