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Forced Response of a Nonlinear Translating Brake Band in the Presence of Friction Guides

机译：在摩擦指南存在下非线性平移制动带的强制响应

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摘要

The goal of this article is to investigate the response of a nonlinear translating brake band system under different external loading and constraint conditions. A friction bench experiment is designed, built, and instrumented accordingly. In this experiment, an actuation body (supported by the friction guides) is pushed against a translating brake band over a prescribed actuation cycle. Therefore, two friction regimes are generated; one between the actuation body and brake band, and another one between the actuation body and friction guide(s). Locations of the friction guides and external load application points are varied and all possible cases are experimentally and computationally studied. First, the effect of the center of contact force shift on the forced response is investigated, and conditions that lead to this shift are examined. Second, a nonlinear mathematical model is utilized to explain the relationship between the center of contact force location and the forced system response, as well as to observe certain trends. Finally, such trends are confirmed by measurements, and a better understanding of the effect of external load and constraint locations on a variation in the friction force is obtained. Some of the findings are briefly linked to the vehicle brake judder problem.
机译：本文的目标是研究非线性平移制动带系统在不同外部加载和约束条件下的响应。相应地设计，建造和仪表设计，建造和仪器设计摩擦台面实验。在该实验中，在规定的致动周期上推动致动体（由摩擦引导件支撑）的致动体。因此，产生了两个摩擦制度;在致动体和制动带之间，并且在致动体和摩擦引导件之间的另一个之间。摩擦引导件和外部负荷应用点的位置是不同的，并且所有可能的情况都是通过实验和计算研究的。首先，研究了接触力偏移中心对强制响应的影响，检查了导致这种转变的条件。其次，利用非线性数学模型来解释接触力位置和强制系统响应中心之间的关系，以及观察某些趋势。最后，通过测量确认了这种趋势，获得了对摩擦力的变化的更好地理解外部负荷和约束位置。一些研究结果与车辆制动闸问题短暂挂钩。

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