某电动汽车动力电池随机振动仿真与试验
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- 英文论文题名：Random Vibration Simulation and Test for the Battery Pack of a Electrical Vehicle
- 论文作者：尹福利 ; 刘卫国 ; 王涛 ; 洪木南 ; 邓承浩 ; 姚振辉
- 英文论文作者：Yin Fuli ; Liu Weiguo ; Wang Tao ; Hong Munan ; Deng Chenghao ; Yao Zhenhui ; Chongqing Changan New Energy Automobile Co. ; LTD.
- 年：2016
- 作者机构：重庆长安新能源汽车有限公司;
- 论文关键词：动力电池 ; 功率谱密度 ; 随机振动 ; 有限元 ; 疲劳寿命
- 英文论文关键词：power battery ; PSD ; random vibration ; FEM ; fatigue performance
- 会议召开时间：2016-10-26
- 会议录名称：2016中国汽车工程学会年会论文集
- 英文会议录名称：Proceedings of 2016 SAE-China Congress
- 语种：中文
- 分类号：U469.72
- 学会代码：QCGC
- 会议名称：2016中国汽车工程学会年会暨展览会
- 会议地点：中国上海
- 主办单位：中国汽车工程学会
- 学会名称：中国汽车工程学会
- 页数：4
- 文件大小：778k
- 原文格式：O
- 会议级别：全国
摘要
为保证装载在新能源汽车上的动力电池包在实际道路上运行的可靠性及安全性,须对电池整包进行随机振动工况的可靠性验证。本文首先对随机振动工况进行解析,利用有限元方法对随机振动工况进行仿真分析。然后在Matlab中用雨流计数法对功率谱密度转化的时域信号数个样本数据进行统计得到载荷峰值频次,结合材料S-N曲线进行疲劳寿命预测,评估了动力电池包的安全性。最后通过试验对仿真分析结果进行了对比验证,保证有限元方法的正确性,得出了基于仿真分析的随机振动工况动力电池强度评估标准
To ensure the reliability and safety of power battery pack of electrical vehicle in motion process on actual road,the reliability of battery pack under the random vibration condition should be verified.First,analyze the random vibration condition,and FEM is used to simulate random vibration analysis.In order to evaluate the reliability of the battery pack,load peak frequency in time domain which translate from PSD is obtained by using Rain Flow Counting methods with the software of Matlab,and combining the material S- N curve,The fatigue life of battery pack is predicted.Finally,the comparative consequence of simulation and test ensured the accuracy of the use of FEM.The strength evaluation criteria of battery pack based on random vibration simulation analysis is obtained.
To ensure the reliability and safety of power battery pack of electrical vehicle in motion process on actual road,the reliability of battery pack under the random vibration condition should be verified.First,analyze the random vibration condition,and FEM is used to simulate random vibration analysis.In order to evaluate the reliability of the battery pack,load peak frequency in time domain which translate from PSD is obtained by using Rain Flow Counting methods with the software of Matlab,and combining the material S- N curve,The fatigue life of battery pack is predicted.Finally,the comparative consequence of simulation and test ensured the accuracy of the use of FEM.The strength evaluation criteria of battery pack based on random vibration simulation analysis is obtained.
引文
[1]全国汽车标准化技术委员会.GB/T 31467.3-2015电动汽车用锂离子动力蓄电池包和系统.第3部分:安全性要求与测试方法[S].北京:中国标准出版社,2015:4-7.
[2]王文伟,程雨婷,姜卫远,等.电动汽车电池箱结构随机振动疲劳分析[J].汽车工程学报.2016,6(1),10-14.
[3]郑志国,王宇峰.随机振动中的参数介绍及计算方法[J].电子产品可靠性与环境试验,2009,12(27),45-48.
[4]刘龙涛,李传日,程祺,等.某结构件的随机振动疲劳分析[J].振动与冲击,2013,32(21):97-101.
[5]SAE J2380-2009.Vibration Testing of Electric Vehicle Batteries[S].USA:Society of Automotive Engineers,2009.
[6]庄表中,陈乃立.随机振动的理论及实例分析[M].北京:地震出版社,1985:216-222.
[7]Rus L.Response of the vehicle nonlinear model to the random excitation[J].Vehicle System Dynamics,1989,18(Suppl):461-473.
[8]Walter Ramberg,William R.Osgood.Description of stress-strain curves by three parameters[J].NACA TN-902,1943.
[2]王文伟,程雨婷,姜卫远,等.电动汽车电池箱结构随机振动疲劳分析[J].汽车工程学报.2016,6(1),10-14.
[3]郑志国,王宇峰.随机振动中的参数介绍及计算方法[J].电子产品可靠性与环境试验,2009,12(27),45-48.
[4]刘龙涛,李传日,程祺,等.某结构件的随机振动疲劳分析[J].振动与冲击,2013,32(21):97-101.
[5]SAE J2380-2009.Vibration Testing of Electric Vehicle Batteries[S].USA:Society of Automotive Engineers,2009.
[6]庄表中,陈乃立.随机振动的理论及实例分析[M].北京:地震出版社,1985:216-222.
[7]Rus L.Response of the vehicle nonlinear model to the random excitation[J].Vehicle System Dynamics,1989,18(Suppl):461-473.
[8]Walter Ramberg,William R.Osgood.Description of stress-strain curves by three parameters[J].NACA TN-902,1943.