| 基于optistruct的电池包结构分析与优化 |
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| 引用本文： | 刘成武、吴平、李喆、施京凯、吴铭.基于optistruct的电池包结构分析与优化[J].福建工程学院学报,2021,0(1):1-6. |
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| 作者姓名： | 刘成武、吴平、李喆、施京凯、吴铭 |
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| 作者单位： | 福建工程学院机械与汽车工程学院 |
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| 摘 要： | 基于Hyperworks软件对某电池包精细化建模，然后进行多工况和约束模态仿真。仿真结果表明，该电池包在颠簸路面刹车和加速工况下均能满足条件，但在约束模态分析中前两阶模态较低，其中上盖板与路面激振频率接近，产生共振对电池造成破坏。运用Optistruct中的厚度优化方法对上盖进行优化，优化后再次建模仿真。优化后一阶约束模态达到28.4Hz，有效避开了来自路面的共振频率，研究结果可为电池包结构设计提供依据。
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| 关 键 词： | 电池包 精细化建模 工况分析 约束模态分析 厚度优化 |
Analysis and optimization of battery package structure based on Optistruct |
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| LIU Chengwu,WU Ping,LI Zhe,SHI Jingkai,WU Ming.Analysis and optimization of battery package structure based on Optistruct[J].Journal of Fujian University of Technology,2021,0(1):1-6. |
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| Authors: | LIU Chengwu WU Ping LI Zhe SHI Jingkai WU Ming |
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| Institution: | School of Mechanical and Automotive Engineering, Fujian University of Technology |
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| Abstract: | A refined model of a certain battery pack was built based on a software, Hyperworks. After that, simulations under multiple load cases and constraint modes were carried out. The simulation results show that the battery pack can meet the conditions under the operating conditions of braking and speeding on the bumpy road. However, the first order and second order modes are lower in the analysis of the constrained mode, in which the excitation frequency of the upper cover plate resonates with that of the road surface, and consequently the resonance does damage to the battery. The method of thickness optimization in Optistruct was applied to optimize the upper cover, and the optimized battery pack was modelled and simulated again. After optimization, the first-order constrained mode reached 28.4Hz, which effectively avoided the resonance frequency from the road surface. The research results can provide a basis for the structural design of the battery pack. |
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| Keywords: | battery pack refined modeling condition analysis constrained modal analysis thickness optimization |
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