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一种地铁转向架的多柔体动力学建模方法研究

Modeling of Multi Flexible Body Dynamics for Metro Bogie
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摘要 为更加系统真实的研究地铁转向架动力学性能,从多柔体动力学角度出发,以某B型转向架为例,建立了包含转向架、车体及轨道的多柔性动力学模型,研究了全新的非线性空气弹簧动力学模型建立方法和部件间运动耦合定义方法,使用轮轴转速驱动和轮轨接触方式进行速度加载,采用显示动力学计算方法,得到动态运行下平稳性指标和动应力并与实验进行对比,结果表明:实验与仿真结果基本一致,该建模方法准确可靠,能为转向架动力学研究提供是一种新的思路。 In order to study the dynamics performance of the metro bogie system more systematically and realistically,a multi-flexible dynamic model for Metro bogie,body and track based on the multi-body dynamics was established taking a B-type bogie as an example.The specific contents included the new non-linear air spring dynamics model and the coupling motion method among components,in which the model was loaded by wheel speed drive and wheel-rail contact so as to be more consistent with the reality.With the display dynamics method,the stability index and the dynamic stress under dynamic operation were obtained and compared with the experimental results.The results show that the experimental results are in a good agreement with the simulated.The present modeling is accurate and reliable,which can provide a new idea for studying bogie dynamics.
作者 王胜泽 唐华平 李云召 姜永正 Wang Shengze;Tang Huangping;Li Yunzhao;Jiang Yongzheng(College of Mechanical and Electrical Engineering,Central South University, Changsha 410083,China;CRRC Zhuzhou Locomotive Co.,Ltd.,Hunan Zhuzhou 412000,China;Hunan Provincial Key Laboratory of Health Maintenance for Mechanical Equipment,Hunan University of Science and Technology,Hunan Xiangtan 411201,China)
出处 《机械科学与技术》 CSCD 北大核心 2019年第1期108-114,共7页 Mechanical Science and Technology for Aerospace Engineering
基金 中国南车股份有限公司科技计划项目(2011NCK020)资助
关键词 地铁转向架 多柔体动力学 建模方法 平稳性 动应力 metro bogie multi flexible body dynamics modeling stability dynamic stress
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