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NONLINEAR ANALYSIS OF SELF-EXCITED VIBRATION IN WHEELED TRACTOR VEHICLE'S DRIVELINE  

Li, X.H. (National Key Laboratory of Vibration, Shock and Noise, School of Mechanical Engineering, Shanghai Jiotong University)
Zhang, J.W. (National Key Laboratory of Vibration, Shock and Noise, School of Mechanical Engineering, Shanghai Jiotong University)
Zeng, C.C. (National Key Laboratory of Vibration, Shock and Noise, School of Mechanical Engineering, Shanghai Jiotong University)
Publication Information
International Journal of Automotive Technology / v.7, no.5, 2006 , pp. 535-545 More about this Journal
Abstract
A nonlinear analysis of torsional self-excited vibration in the driveline system for wheeled towing tractors was presented, with a 2-DOF mathematical model. The vibration system was described as a second-order ordinary differential equation. An analytical approach was proposed to the solution of the second-order ODE. The mathematical neighborhood concept was used to construct the interior boundary and the exterior boundary. The ODE was proved to have a limit cycle by using $Poincar\ Annulus Theorem when two inequalities were satisfied. Because the two inequalities are easily satisfied, the self-excited vibration is inevitable and even the initial slip rate is little. However, the amplitude will be almost zero when the third inequality is satisfied. Only in a few working modes of the towing tractor the third inequality is not satisfied. It is shown by experiments that the torsional self-excited vibration in the driveline of the vehicle is obvious.
Keywords
Self-excited vibration; Towing tractor; Driveline;
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