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Nonlinear analysis of a closed-loop tractor-semitrailer vehicle system with time delay

机译:具有时滞的闭环半挂车车辆系统的非线性分析

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摘要

In this paper, a nonlinear analysis is performed on a closed-loop system of articulated heavy vehicles with driver steering control. The nonlinearity arises from the nonlinear cubic tire force model. An integration method is employed to derive an analytical periodic solution of the system in the neighbourhood of the critical speed. The results show that excellent accuracy can be achieved for the calculation of periodic solutions arising from Hopf bifurcation of the vehicle motion. A criterion is obtained for detecting the Bautin bifurcation which separates branches of supercritical and subcritical Hopf bifurcations. The integration method is compared to the incremental harmonic balance method in both supercritical and subcritical scenarios.
机译:在本文中,对带有驾驶员转向控制的铰接式重型车辆的闭环系统进行了非线性分析。非线性是由非线性三次轮胎力模型引起的。采用积分方法得出临界速度附近系统的解析周期解。结果表明,对于车辆运动的霍普夫分叉产生的周期解,可以实现极好的精度。获得了用于检测将超临界和亚临界Hopf分支的分支分开的Bautin分支的标准。在超临界和亚临界情况下,将积分方法与增量谐波平衡方法进行了比较。

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