强度自动化平台在结构优化设计中的应用  

Structural Optimization Design in Application of Strength Automation Platform

作　　者：孙月宁[1] 田中强[1] 谢剑斌[1] 

机构地区：[1]中国直升机设计研究所,江西景德镇333001

出　　处：《直升机技术》2010年第4期26-32,共7页Helicopter Technique

摘　　要：鉴于MDO相关技术在工业中的成功应用,利用其相关技术搭建了强度自动化平台,将其应用到直升机结构优化设计中,并以直升机舷梯门为例,开展结构减重优化设计。根据直升机舷梯门实际结构形式,通过编辑bdf文件实现CAE模型参数化,明确了优化过程中的设计变量、约束与目标。编写Fortran子程序对结果文件进行后处理,自动实现约束判断。采用修正可行方向法(MMFD),对每次的计算结果进行优化判定,最终得到减重优化结果。最后,利用部件级的舷梯门减重优化的成功实现,提出了搭建直升机全机减重优化平台的设想。The MDO method was introduced into reducing helicopter weight,in that industry succeed in using MDO technology.Based on the gangway door's structure,carried out reduce weight optimization in application of strength automation platform.The CAE model was parameterized by editing bdf file,subsequently,the programme defines the variable,constraint and object.Writed Fortran subroutine program in order to realize binding judgments.Built weight reduce optimization mathematical model of gangway door,judged every calculating result by adopting modified method of feasible direction(MMFD)and obtain the weight reduce optimization result.Finally,weight reduce optimization was succeed in gangway door as a component of helicopter,and an idea for building full-aircraft platform of weight reduce was proposed.

关 键 词：直升机 结构 强度 优化 

分 类 号：V27[航空宇航科学与技术—飞行器设计]