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首页> 外文会议>ASME(American Society of Mechanical Engineers) International Design Engineering Technical Conferences and Computers and Information in Engineering Conference 2005(DETC2005) vol.1: Biennial Conference on Mechanical Vibration and Noisen pt.A; 20050924-28; >A TECHNIQUE FOR ASSESSING TIRE FORCES IN A VEHICLE MOVING ALONG A HARMONIC PROFILE AND ITS APPLICATION TO LOW-SPEED TESTING
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A TECHNIQUE FOR ASSESSING TIRE FORCES IN A VEHICLE MOVING ALONG A HARMONIC PROFILE AND ITS APPLICATION TO LOW-SPEED TESTING

机译：沿谐波轮廓行进的车辆轮胎力评估技术及其在低速测试中的应用

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摘要

The paper is concerned with the assessment of dynamic tire forces that arise when a vehicle traverses a road with a harmonic profile. In this case, solutions of all equations are found analytically. The technique developed is not specific to a particular linear vehicle model, which is represented by its mass, stiffness, and damping matrices. A factored representation of the vector of the tire forces as the product of a matrix and a vector, where both the matrix and the vector are functions of only one variable, is derived. The matrix is constructed either by the mathematical model of the vehicle or by results of special tests on the vehicle at several values of speed. The vector is given by an explicit formula and requires knowledge of only the wheelbase distances. An application of the technique discussed to the so-called low-speed testing is discussed. It is shown that, in spite of the wheelbase filtering phenomenon, it is possible to replace testing vehicles at highway speeds by tests at artificially low speeds. The results of the latter tests can then be recalculated into those corresponding to the highway conditions. The discussions are illustrated by numerical examples.
机译：本文涉及对动态轮胎力的评估，该动态轮胎力是在车辆以谐波轮廓横越道路时产生的。在这种情况下，可以通过分析找到所有方程的解。所开发的技术并不特定于特定的线性车辆模型，该模型由其质量，刚度和阻尼矩阵表示。得出轮胎力矢量的分解表示形式，该表示形式是矩阵和矢量的乘积，其中矩阵和矢量都是仅一个变量的函数。该矩阵是通过车辆的数学模型或通过在几种速度值下对车辆进行的特殊测试的结果来构造的。该向量由一个明确的公式给出，仅需要了解轴距即可。讨论了该技术在所谓的低速测试中的应用。结果表明，尽管存在轴距过滤现象，但仍可以通过人为地低速测试代替高速行驶的测试车辆。随后的测试结果可以重新计算为与公路状况相对应的结果。通过数值示例来说明讨论。

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