宽容平衡优化具有对离散功能表面的形式和功能的多重约束
Chuanyuan Zhou1, Xiaomei Guo2, Xiaoxiao Wei1
1Zhejiang University of Water Resources and Electric Power, Hangzhou, 310018, P. R. China.
Scientific reports
|January 9, 2025
概括
对离散的功能表面进行容忍优化需要平衡形式和功能. 这项研究提出了一种新的方法,通过考虑它们对表面形状和几何功能的同时影响来优化公差.
科学领域:
- 机械工程 机械工程
- 制造业 工程 制造工程
- 表面计量学 表面计量学
背景情况:
- 离散的功能表面性能受到表面形状和几何函数的显著影响.
- 传统的宽容设计往往优先考虑几何功能,忽视了对表面形状的影响,这对于离散的功能表面来说是不理想的.
- 不同零件公差对表面形状和几何功能的不同影响需要更完整的方法.
研究的目的:
- 为离散的功能表面提出一种新的容忍平衡优化方法.
- 解决现有方法的局限性,这些方法仅专注于几何函数要求.
- 开发一个模型,在表面形状和几何函数上考虑多个约束.
主要方法:
- 提取影响表面形状和几何功能的关键公差,以减少优化范围.
- 开发一个包容性优化模型,在多个形式和功能约束中结合一个惩罚函数.
- 将容忍贡献集成到非线性惯性重量粒子群算法中以进行优化.
主要成果:
- 确定对表面形状和几何功能的影响最大的临界公差.
- 成功建立了一个宽容优化模型,平衡形式和功能约束.
- 通过拟议的算法,实现优化的零件公差,满足几何功能和表面形状要求.
结论:
- 对于离散的功能表面,容忍平衡优化方法是有效的.
- 在容忍设计中同时考虑表面形状和几何功能,可以提高性能.
- 提出的方法有效地识别和优化关键公差,增强整体制造过程.
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