不确定因素下薄壁铝合金管弯曲的多目标连续稳健优化设计（英文）

发布时间：2018-04-18 14:12

本文选题：稳健优化 + 管材弯曲　；参考：《Transactions of Nonferrous Metals Society of China》2017年03期

【摘要】：结合实验设计和三维弹塑性有限元,在确定性优化设计基础上,提出了不确定因素下薄壁铝合金管数控弯曲的多目标连续稳健优化方法。基于部分析因设计,获得了显著的噪声因子,包括管材性能变化、管材几何尺寸波动和管材-模具摩擦波动。采用田口内外表试验法,考虑主要弯曲成形缺陷,对薄壁铝管数控弯曲芯模直径、芯棒伸出量和助推速度进行了稳健优化设计。通过分别考虑摩擦接触条件、管材料参数和管材几何参数的波动,实现了薄壁铝管数控弯曲芯模直径的稳健性优化设计;通过考虑材料参数波动、芯模与管间的摩擦波动以及芯模直径的制造偏差,实现了芯棒伸出量和助推速度的稳健性优化设计。
[Abstract]:Based on the experimental design and three-dimensional elastic-plastic finite element method, a multi-objective continuous robust optimization method for numerical control bending of thin-walled aluminum alloy tubes with uncertain factors is proposed.Based on the part analysis, significant noise factors are obtained, including the change of pipe performance, the fluctuation of pipe geometry and the fluctuation of tube-die friction.In this paper, the numerical control bending core die diameter, mandrel extension and booster speed of thin-walled aluminum tube are designed by using the Taguchi exterior test method and considering the main bending forming defects.By considering the friction contact condition, the fluctuation of tube material parameter and tube geometry parameter, the robust optimization design of numerical control bending core die diameter of thin-walled aluminum tube is realized, and the material parameter fluctuation is considered.The friction fluctuation between the core die and the tube and the manufacturing deviation of the core die diameter have realized the robust optimization design of the mandrel extension and the booster speed.
【作者单位】：西北工业大学凝固技术国家重点实验室;成都飞机工业(集团)有限责任公司;
【基金】：Project(51275415) supported by the National Natural Science Foundation of China Project(51522509) supported by the National Science Fund for Excellent Young Scholars,China
【分类号】：TG146.21;TG306

【相似文献】