高速动车组受电弓导流罩多学科优化设计.pdfVIP

高速动车组受电弓导流罩多学科优化设计 1 李明 ，李国清，刘东亮，孔繁冰，韩璐 （唐山轨道客车有限责任公司产品技术研究中心） 赖宇阳 （北京树优信息技术有限公司） 张伟 （达索析统公司） 摘 要：受电弓导流罩是改善高速动车组气动性能的重要部件。为降低高速动车组受电弓导 流罩区域的气动阻力，基于DOE 实验设计方法对优化空间均匀采样，进行了涉及气动性能、 结构强度等性能指标的多学科优化设计，然后借助多目标优化遗传算法NCGA 建立近似模 型，寻求气动阻力、结构强度综合性能最佳的导流罩结构。结果表明，最佳受电弓导流罩方 案的气动阻力相比初始方案降低2%，同时压力、变形满足设计要求。 关键字：优化，受电弓导流罩，阻力 Multidisciplinary Design Optimization of the pantograph shroud of High-speed EMUs Li Ming Li Guoqing Liu Dongliang Kong Fanbing Han Lu (PT Research Center, Tangshan Railway Vehicle Co., Ltd. 3# Changqian Rd., Fengrun District, Tangshan, P.R.China 063035） Lai Yuyang (SOYOTEC LIMITED, Beijing, P.R.China) Zhang Wei (Dassault Simulia, Beijing, P.R.China) Abstract: Pantograph shroud is an important component of improving the aerodynamic performance of high-speed EMU. In order to reduce the aerodynamic resistance of pantograph shroud, optimization space was uniformly sampled based on the DOE methods, then multidisciplinary design optimization was performed, involved in indexes such as aerodynamic performance and structural strength. Then the approximate model was established with the multi-objective optimization method NCGA, searching for the best shroud structure with best comprehensive performance of both aerodynamic drag and structural strength.The results show that aerodynamic drag of the best structure of the pantograph shroud, reduced by 2% compared to the initial structure, while the pressure, deformation both meeting the design requirements. Key words: optimization, flow guide mantle of pantograph, resistance 1