【作者】 羊玢； 孙庆鸿； 黄文杰； 朱壮瑞； 张卫华；

【Author】 YANG Bin, SUN Qing-hong, HUANG Wen-jie, ZHU Zhuang-rui, DAI Jia-peng, JIANG Yan-qing (1.Department of Mechanical Engineering, Southeast University, Nanjing 210096;China 2. Urban Rail Vehicle Institution, Nanjing Puzhen Rolling Stock Works, Nanjing 210031;China 3. National Traction Power Key Laboratory, Southwest Jiaotong University, Chengdu 610031, China)

【机构】 东南大学机械工程系； 南京浦镇车辆厂城市轨道车辆研究所； 西南交通大学牵引动力国家重点实验室；

【摘要】 应用有限元方法及ANSYS软件建立了地铁车辆车体结构有限元分析模型,根据地铁车辆受力分析和危险程度,选择拖车(头车)作为计算分析对象,确定了有限元模型的计算载荷、常见计算工况和评定标准,计算了车体在整备状态下的车体静强度,分析了整备状态和超常状态下的固有频率和振型。结果表明,地铁车体静强度在常见计算工况下皆能满足相关标准的要求,车体一阶扭转和一阶垂向弯曲自振频率偏低,一般要求车体在整备状态下的自振一阶垂弯频率应大于10Hz,以避开转向架的点头频率。因此提出了减小结构质量的同时增大结构刚度,在满足车体强度要求下,可以实现以降低次要的振型频率来提高主要的振型频率,并可进一步地减轻车体质量。更多还原

【Abstract】 This paper established a particular finite element analysis model of subway vehicle car body structure with the finite element method and ANSYS software, and took tow truck as analytical object according subway vehicle’s load and dangerous grade. It was pointed the FEM calculational load、constant operating condition and assessing standard. Reckoned subway bodywork static strength under all-setup and its inherent frequencies and vibration model. The results indicate subway car body structure satisfies constant operating condition relative design requirements, at the same time, its first step torsion and vertical bend vibration frequencies are smaller than 10 Hz, which is overall bogie pitching frequency. Therefore, this paper presents decreasing structure mass while improving structure stiffness. Under the condition of meeting body strength, reducing secondary vibration frequency to improve primary vibration frequency and ulteriorly alleviating body mass are also brought forward. 4 tabs, 16 figs, 10refs.更多还原