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为了更好地实现铁路货运的重载快捷发展目标,以双层集装箱车辆作为应用研究对象,利用刚柔耦合仿真分析手段进行了3E轴构架转向架100~135 km/h动力学性能分析.6轴双层集装箱车辆刚柔耦合分析表明:空载承载鞍滑动现象和重载中轴轮对稳定性将是其高速运营的主要性能问题.因而,确保空载轮对定位刚度、确保重载中轴轮对轮轨关系稳定和降低车体结构耦合振动响应水平应作为3轴构架转向架的通用动力学要求.为此,提出了如下三项技术对策:①1、3轴承载鞍应以45°倒面作为承载摩擦面,满足摩擦系数μe≥0.42,而中轴小承载鞍则以磨耗板进行减磨处理μ<0.2;②以中轴轮对车轮轮缘减薄9 mm的LM修正踏面优化来提高轮轨匹配的等效锥度控制中轴轮对横移,进而降低转向架蛇行运动程度;③中轴轴箱增设斜楔摩擦减振以降低落下孔车体中部结构振动耦合响应.与原设计对比,该技术对策可以使车辆动态性能得到改善.
In order to realize the rapid development goal of heavy haul railway freight, the double-deck container vehicle is used as the research object and the rigid-flexible coupling simulation analysis method is used to analyze the dynamic performance of the bogie with 3E axle frame 100 ~ 135 km / h.6 The rigid-flexible coupling analysis of axle double-decked container vehicles shows that the phenomenon of no-load slippage and the stability of heavy-duty axles are the main performance problems of high-speed operation.Therefore, to ensure no-load wheel alignment stiffness, As a result, the following three technical measures are proposed: ① The bearing of the 1, 3 bearing should be at 45 ° With the friction coefficient of the friction coefficient μe≥0.42 as the bearing friction surface and the friction coefficient μe≥0.42 of the minor axis carrier, and the wear resistance of the minor axis with the wear plate μ <0.2; ② The LM correction tread with the middle wheel reduced by 9 mm To improve the wheel and rail equivalent taper control of the wheel set on the horizontal shift, and thus reduce the degree of bogie snake motion; ③ increase the central axis of the shaft wedge friction damping to reduce the central structure of the falling hole vehicle vibration coupling response with the original design Than the technical measures can make dynamic performance of the vehicle is improved.