| 新一代高速动车组中间车车体的强度及自振频率 |
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| 引用本文： | 赵士忠,田爱琴,赵国忠,伊召锋.新一代高速动车组中间车车体的强度及自振频率[J].大连交通大学学报,2012,33(4):12-15. |
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| 作者姓名： | 赵士忠 田爱琴 赵国忠 伊召锋 |
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| 作者单位： | 1. 中国北车集团青岛四方机车车辆股份有限公司,山东青岛,266555
2. 工业装备结构分析国家重点实验室,大连理工大学工程力学系,辽宁大连116024 |
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| 基金项目： | 国家科技计划资助项目，国家自然科学基金资助项目，辽宁省高校创新团队资助项目 |
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| 摘 要： | 以新一代高速动车组中间车车体为研究对象,在车体结构的三维几何模型的基础上,利用大型通用建模软件Hypermesh进行前处理,建立了车体有限元模型,并以Ansys软件进行了分析求解首先对车体的典型荷载工况进行分析,给出静强度评估；其次通过对车体进行模态分析以及根据近似理论的计算,给出了理论估计值和模态分析值的刚度评估,为车体结构的实际设计和优化提供了有效的参考依据.
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| 关 键 词： | 高速动车组 有限元 静强度评估 模态分析 刚度评估 |
Structure Strength and Natural Vibration Frequency Analysis of the Middle Car Body of a New Generation High-Speed EMU |
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| ZHAO Shi-zhong
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TIAN Ai-qing
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ZHAO Guo-zhong
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YI Zhao-feng.Structure Strength and Natural Vibration Frequency Analysis of the Middle Car Body of a New Generation High-Speed EMU[J].Journal of Dalian Jiaotong University,2012,33(4):12-15. |
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| Authors: | ZHAO Shi-zhong TIAN Ai-qing ZHAO Guo-zhong YI Zhao-feng |
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| Institution: | 1.Qingdao Sifang Locomotive Company Limited,Qingdao 266555,China;2.State Key Laboratory of Structural Analysis for Industrial Equipment,Department of Engineering Mechanics,Dalian University of Technology,Dalian 116024,China) |
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| Abstract: | The middle car body of a new generation high-speed EMU is studied.A finite element analysis model is constructed using software Hypermesh,and the model data is imported into ANSYS software to obtaine solutions.The static mechanic behaviors of the middle car body under some typical load cases are analyzed,and the evaluation of static strengthen is determined.The dynamic stiffness evaluation is presented by comparing the results of numerical simulation of natural vibration modal with approximate theory,which provides an effective reference for practical design and structural optimization of the car body. |
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| Keywords: | high-speed electric multiple units finite element static strength assessment modal analysis stiffness assessment |
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