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一、前言日本国有铁路在1982年的技术研究课题中,提出了研制既能改善曲线通过性能、减轻轮轨磨耗,又具有良好的高速运行性能的自导向径向转向架的任务。根据这个要求,研究试制了TR909型径向转向架。二、径向转向架的基本概念为保证车辆高速运行的稳定性,即蛇行运动的稳定性,以往采取的方式都是提高转向架轴箱定位刚度,使转向架的两根轴保持平行,以及采用踏面斜度小的车轮。但是,
I. Preface In the technical research project of 1982, the state-owned Japanese railways proposed the task of developing a self-steering radial bogie that can improve curve passing performance, reduce wheel and rail wear, and have good high-speed running performance. According to this requirement, the trial developed TR909 radial bogie. Second, the basic concept of radial bogie In order to ensure the stability of high-speed vehicle operation, that is, the stability of hunting movement, the previous approach is to improve the bogie axle positioning stiffness, so that the bogie two axes parallel, and Tilted with a small wheel. but,