南昌大学学报(工科版)
南昌大學學報(工科版)
남창대학학보(공과판)
JOURNAL OF NANCHANG UNIVERSITY ENGINEERING & TECHNOLOGY EDITION
2014年
3期
247-251
,共5页
赵鹏飞%王丽娟%陈宗渝%方柘林%涂晴
趙鵬飛%王麗娟%陳宗渝%方柘林%塗晴
조붕비%왕려연%진종투%방자림%도청
顶压强度%正交设计%移动最小二乘法%自适应响应面法%轻量化
頂壓彊度%正交設計%移動最小二乘法%自適應響應麵法%輕量化
정압강도%정교설계%이동최소이승법%자괄응향응면법%경양화
roof crush resistance%orthogonal design%moving least-square approximation%adaptive response surface method%lightweight design
依据现代设计理论和方法,对在承受顶部加压工况下的乘用车的车身结构进行轻量化设计。在车身结构轻量化设计过程中,采用正交实验设计进行样本取样,根据所得样本数据,利用移动最小二乘法构建回归模型,同时为了避免传统响应面法完全依赖于最开始选定的实验点的问题,而选取自适应响应面法为优化手段。利用HyperStudy软件进行优化求解,得到优化后的部件厚度分别为2.0、1.2、1.7、0.5 mm。通过验证,在保证车身顶部安全性能不损失的前提下,使得部件总质量降低了2.23%。
依據現代設計理論和方法,對在承受頂部加壓工況下的乘用車的車身結構進行輕量化設計。在車身結構輕量化設計過程中,採用正交實驗設計進行樣本取樣,根據所得樣本數據,利用移動最小二乘法構建迴歸模型,同時為瞭避免傳統響應麵法完全依賴于最開始選定的實驗點的問題,而選取自適應響應麵法為優化手段。利用HyperStudy軟件進行優化求解,得到優化後的部件厚度分彆為2.0、1.2、1.7、0.5 mm。通過驗證,在保證車身頂部安全性能不損失的前提下,使得部件總質量降低瞭2.23%。
의거현대설계이론화방법,대재승수정부가압공황하적승용차적차신결구진행경양화설계。재차신결구경양화설계과정중,채용정교실험설계진행양본취양,근거소득양본수거,이용이동최소이승법구건회귀모형,동시위료피면전통향응면법완전의뢰우최개시선정적실험점적문제,이선취자괄응향응면법위우화수단。이용HyperStudy연건진행우화구해,득도우화후적부건후도분별위2.0、1.2、1.7、0.5 mm。통과험증,재보증차신정부안전성능불손실적전제하,사득부건총질량강저료2.23%。
Tn view of safety performance of the roof crash resistance,the paper takes the advantage of modern design theories and methods in the process of lightweight design of autobody structure. The sample data was obtained utilizing orthogonal experimental design. Then moving least square was used to build a regression model. The tradi-tional response surface method was entirely dependent on the sample points which were selected at the very begin-ning. The problem in the wake of above defect could be averted by using the adaptive response surface method. The project was optimized by using Hyper Study software. Finally,the optimized parameters were determined as 2. 0, 1. 2,1. 7,and 0. 5 mm. The weight of the structural component could be decreased by 2. 23% without losing safety performance of body structure.