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介绍南非三大件货车转向架载荷敏感阻尼（即变摩擦阻尼）的最新研究。其目的是了解这种非线性悬挂元件的性能，并预测由于车辆在非理想轨道上运行，车辆／轨道系统的性能及其性能恶化。
This paper introduces the latest research on the load-sensitive damping (ie, variable friction damping) of the three big truck wagons in South Africa. Its purpose is to understand the performance of such non-linear suspension elements and predict the performance and performance degradation of the vehicle / rail system due to the vehicle running on a non-ideal rail.