玻璃纤维增强聚合物汽车前端模块的过程结构协同优化
Ziming Chen1, Pengcheng Guo2,3, Longjian Tan1
1College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, China.
Materials (Basel, Switzerland)
|July 12, 2025
概括
本研究介绍了汽车玻璃纤维增强聚合物 (GFRP) 组件的共同优化过程,改善结构性能并减少注塑成型的缺陷. 新方法提高了设计可靠性和部件质量.
科学领域:
- 材料科学与工程 材料科学与工程
- 机械工程 机械工程
- 汽车工程 汽车工程
背景情况:
- 玻璃纤维增强聚合物 (GFRP) 汽车部件的注塑成型引入了曲面,残余应力/应变和纤维方向问题.
- 这些过程诱导的因素损害了GFRP组件服务性能,并阻碍了可靠的性能评估.
- 集成流程和结构的协同优化方法对GFRP组件至关重要.
研究的目的:
- 开发和验证汽车GFRP组件的过程结构协同优化方法.
- 通过解决注塑成型缺陷来提高GFRP前端模块的性能和可靠性.
- 通过结合制造历史的模拟来提高性能评估的准确性.
主要方法:
- 使用拓结构设计和注塑成型过程优化评估前端模块性能.
- 采用了一种连续的门控制系统,用于高级线和光纤方向控制.
- 通过直角实验确定最佳工艺参数,并通过与实验数据对照注射成型历史进行映射的验证模拟.
主要成果:
- 拓优化减少了锁的安装点位移,从2.254mm降至1.609mm.
- 最佳的过程参数将曲面减少到1.498毫米 (41.5%的减少).
- 结合纤维方向和残余应力/应变的模拟与实验结果密切一致 (平均相对误差为11.78%).
结论:
- 开发的过程结构协同优化方法提高了结构刚性,并控制了GFRP汽车部件的注塑缺陷.
- 该方法显著提高了汽车用GFRP结构性能评估的可靠性.
- 这个工作流提供了设计和评估GFRP汽车车身结构的方法支持.
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