| Summary: | 碩士 === 國立中正大學 === 機械工程學系暨研究所 === 99 === This study discusses bearing stiffness effect on the multi-tooth system.First,the gear profile with modification coefficient by using rack cutter is proposed and the mesh stiffness at the position along the line of action is calculated.Final,the time-varying mesh stiffness into the system of equations of motion and use the Runge-Kutta method in the system, discuss different bearing stiffness on nonlinear dynamic behavior of gear system.
The results show, from low speed to high speed of the system , if the bearing stiffness is 10^10 and 10^12N/mm , that bearing stiffness reduction will make chaos ahead of the system. In the case of high speed, positive modification coefficient chaos to occur is faster than negative modification coefficient when bearing stiffness lower, Moreover，bearing stiffness Increase the scope of the system of Chaos whan bearing stiffness lower. In terms of radial displacement, due to the strong stiffness of bearing, radial displacement effect on dynamic transmission error will low. On the other hand,Bearing damping did not affect of chaos of system.
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