节点文献
弱刚性薄壁件夹具布局优化方法研究概述
A Review of Fixture Layout Optimization Method for Weakly-Rigid Thin-Walled Workpieces
【摘要】 弱刚性薄壁件因其重量轻、强度高等特点被大量应用于航空航天、汽车等工业领域,但是同时也存在厚度小、刚性弱,在制造过程中极易发生变形的缺点。而夹具布局设计是减少薄壁件制造变形、保证其制造质量的一个非常重要的因素。传统的薄壁件夹具布局设计依赖于工程师的直观判断和经验积累,速度慢、成本高、设计随意性大。随着计算机技术的不断提高,国内外学者先后应用有限元仿真、数学规划、智能优化算法以及代理模型等理论和方法对薄壁件夹具元件的布局进行优化设计,取得了大量研究成果。根据目标函数的建模方法以及所使用的优化算法对相关研究进行了系统的分类讨论,并详细分析了各个建模方法和优化算法的优缺点。最后对弱刚性薄壁件夹具布局优化方法的相关研究进行总结,并提出了相应的研究建议。
【Abstract】 Due to the characteristics of light weight and high strength, weakly-rigid thin-walled workpieces are widely used in aerospace, automobile and other industrial fields, but they also have the disadvantages of small thickness,low rigidity and easily deformation during the manufacturing process. The fixture layout design is a very important factor to reduce the deformation and ensure the quality of thin-walled workpieces. Traditional fixture layout design of thinwalled workpieces depends on the intuitive judgment and experience accumulation of engineers, which is slow, high cost and large randomness of design. With the continuous improvement of computer technology, many scholars applied finite element simulation, mathematical programming method, intelligent optimization algorithm, surrogate model and so on to optimize the layout of thin-walled workpieces fixture components, and have obtained a lot of research results. According to the modeling method of objective function and the optimization algorithm, the related researches are systematically classified and discussed, and the merit and demerit of each modeling method and optimization algorithm are analyzed in detail. Finally, the related researches on the fixture layout optimization method of weakly-rigid thin-walled workpieces are summarized, and the corresponding research advice are put forward.
【Key words】 Weakly-rigid thin-walled workpieces; Fixture layout optimization; Finite element method; Surrogate model; Optimization algorithm;
- 【文献出处】 航空制造技术 ,Aeronautical Manufacturing Technology , 编辑部邮箱 ,2023年14期
- 【分类号】TG75
- 【下载频次】23