| 变流器柜体冲击和随机振动试验的数值模拟 |
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| 引用本文： | 丁杰,忻力,荣智林,陈燕平.变流器柜体冲击和随机振动试验的数值模拟[J].机车电传动,2012(1):62-65,68. |
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| 作者姓名： | 丁杰 忻力 荣智林 陈燕平 |
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| 作者单位： | 株洲南车时代电气股份有限公司技术中心,湖南株洲,412001 |
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| 摘 要： | 根据标准GB/T 21563-2008《轨道交通机车车辆设备冲击和振动试验》,采用ANSYS有限元分析软件计算了随机振动环境下的响应,得到了结构的1σ、2σ、3σVonMises最大应力.利用材料的S-N曲线,并根据Steinberg提出结构在随机载荷作用下的响应是基于高斯分布和Miner提出的线性疲劳累计损伤理论,对设计的结构在给定随机振动环境下的疲劳寿命进行了预估.运用瞬态动力学分析方法模拟了冲击试验过程中的受力情况.
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| 关 键 词： | 变流器 随机振动 疲劳寿命 冲击 瞬态动力学 |
Numerical Simulation of Shock and Vibration Tests for Converter Cabinet |
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| DING Jie
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XIN Li
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RONG Zhi-lin
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CHEN Yan-ping.Numerical Simulation of Shock and Vibration Tests for Converter Cabinet[J].Electric Drive For Locomotive,2012(1):62-65,68. |
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| Authors: | DING Jie XIN Li RONG Zhi-lin CHEN Yan-ping |
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| Institution: | (Technology Center,Zhuzhou CSR Times Electric Co.,Ltd.,Zhuzhou,Hunan 412001,China) |
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| Abstract: | According to the standard GB/T 21563????2008 ’Railway applications-Rolling stock equipment-Shock and vibration tests’,the responses of the structure under random loading were computed by the finite-element analysis software ANSYS.From the results,the maximum of the 1 2 and 3 Von Mises stress was obtained.Utilizing the S-N curve of the materials,and according to Steinberg’s Gaussian distribution of responses under random loading and Miner’s linear fatigue accumulation rule,the life prediction of the structure under random loading was carried out.The transient dynamics analysis was also performed for shock tests. |
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| Keywords: | converter random vibration fatigue life shock transient dynamics |
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