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一个多腔体的多目标优化,显著的墙壁厚度差异挤出配置模具设计新能源汽车的模具设计
Xuda Xu1,2, Feng Jiang1, Jianxiang Li2
1School of Material Science and Engineering, Central South University, Changsha 410083, China.
Materials (Basel, Switzerland)
|May 11, 2024
概括
这项研究优化了新能源汽车电池托盘的挤出模具设计. 先进的算法减少了速度和压力变化,改善了具有不同壁厚的复杂配置文件的挤出质量.
科学领域:
- 材料科学 材料科学 材料科学
- 制造业 工程 制造工程
- 机械工程 机械工程
背景情况:
- 新能源汽车市场的勃发展推动了对电池托盘中复杂型材的需求.
- 在多孔型材中,墙壁厚度的显著变化给生产和质量控制带来了挑战.
研究的目的:
- 在设计复杂配置文件的挤出模具时解决多目标优化问题.
- 为了提高电池形状的质量和可制造性,具有很大的墙壁厚度差异.
主要方法:
- 使用QFORM-挤出有限元素分析软件进行模拟.
- 采用响应表面分析和NSGA2多目标遗传算法.
- 优化模具结构参数,包括阻隔板高度,轴承长度和虚假顶高度.
主要成果:
- 实现了5.33%的简化,在标准偏差的轮截面速度.
- 将压力的标准偏差降低了11.16%.
- 厚壁的水静压增加了26.47%.
结论:
- 优化的模具设计成功满足了热挤压生产要求.
- 验证了复杂形状模具多目标优化方法的有效性.
- 在电池托盘应用中证明了更好的配置质量.
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