动力电池电池箱轻量化设计
Lightweight design of power battery box
刘俊峰 1康元春2
作者信息
- 1. 湖北汽车工业学院 汽车工程学院,湖北 十堰 442002
- 2. 湖北汽车工业学院 汽车工程学院,湖北 十堰 442002;汽车动力传动与电子控制湖北省重点实验,湖北 十堰 442002
- 折叠
摘要
为轻量化电池箱并保证其强度、刚度和安全性能,对比了在尺寸优化阶段引入安全性评价指标与否 2 种方法.首先对电池箱进行了静力分析、模态分析和挤压仿真,然后是形貌优化和尺寸优化.在尺寸优化阶段,以挤压作为安全性评价指标,同时考虑静力分析和模态分析,对比了 2 种多目标优化方案,最终确定了电池箱各板件的厚度.优化结果表明,在尺寸优化阶段引入安全性指标,电池模组变形量减少了 43.08%,且电池箱质量减少了 20.81%.在轻量化的同时保证了强度刚度和安全性能.
Abstract
In order to lightweight the battery box and ensure its strength,stiffness,and safety performance,two methods were compared:introducing safety evaluation indicators in the size optimization stage and not introducing safety indicators.Static analysis,modal analysis,and extrusion simulation on the battery box were first conducted.Then,morphology optimization and size optimization were carried out.In the dimension optimization stage,extrusion was used as a safety evaluation indicator,while static analysis and modal analysis were considered.Two multi-objective optimization schemes were compared,and the thickness of each panel of the battery box was ultimately determined.The optimized results indicate that introducing safety indicators during the size optimization stage reduced the deformation of the battery module by 44.18%,and the mass of the battery box by 20.81%.While lightweight,it ensured strength,stiffness,and safety performance.
关键词
电池箱/轻量化/多目标优化Key words
battery box/lightweight/multi-objective optimization引用本文复制引用
基金项目
汽车动力传动与电子控制湖北省重点实验室创新基金(2015xtzx0407)
出版年
2024
国家科技期刊平台
NSTL
万方数据