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滑板式侧滑仪受力特性及测量误差机理分析

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Keywords: 汽车工程,轮胎,理论分析,侧滑检测,力学模型,滑板式侧滑仪

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Abstract:

?为了解决滑板式侧滑仪测滑量检测结果离散性大、重复性差的问题,以滑板为研究对象,通过滑板与轮胎胎面之间侧向力的相互作用,从理论上分析滑板在检测过程中的受力特性,建立滑板横向运动的力学模型和相应的运动微分方程,并对其进行求解,得出滑板位移的理论计算公式和前转向轮在滑板上的运动胎迹;最后分析和讨论了侧滑值受到回位弹簧的刚度、滑板的质量、被检车辆的质量和被检车辆速度的影响规律以及侧滑仪测量误差的形成机理。计算和分析结果表明:滑板的位移是滚动轮胎在滑板上的位置函数,其按一定的角频率波动变化;滑板位移的最大值与滑板所受的侧向力成正比,与弹簧刚度成反比。

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