摘要
为实现某新型并联导弹挂架的减重需求,以并联挂架的转接梁为典型对象,利用有限元进行了转接梁的强度分析,确定了最大应力位置和应力分布。通过等效静态载荷法和子模型技术相结合的方式,进行了转接梁子模型的多工况拓扑优化,获取了材料最佳分布。对几何重建模型进行了尺寸优化,在同时考虑质量、变形和应力的基础上,实现了转接梁结构的详细设计。结果表明,优化后的结构在满足强度条件下,重量减少了43.1%,最大应力下降了13.1%,可为同类产品的减重设计提供参考。
In order to realize the lightweight of a new parallel missile pylon,in this paper,the transfer beam of parallel missile pylons was taken as a typical research object.The strength analysis of the transfer beam is first carried out by finite element method,and the maximum stress position and stress distribution were determined.Secondly,the multi-condition topology optimization of the transfer beam model was carried out by combining the equivalent static load method with the sub-model technology,and the optimal distribution of the material was obtained.Finally,the size of the geometric reconstruction model was optimized,and the detailed design of transfer beam structure was realized on the basis of considering the mass,deformation and stress.The results show that the weight of the optimized structure was reduced by 43.1%and the maximum stress was reduced by 13.1%under the condition of satisfying the strength requirement,which can provide reference for the weight reduction design of similar structural products.
作者
张鹏程
雷征
赵冠臣
李青松
韩召辉
王延生
ZHANG Pengcheng;LEI Zheng;ZHAO Guanchen;LI Qingsong;HAN Zhaohui;WANG Yansheng(School of Aeronautics,Northwestern Polytechnical University,Xi'an 710072,China;Xi'an Aerospace Propulsion Institute,Xi'an 710100,China;Chengdu Lihang Technology Co.,Ltd.,Chengdu 610091,China)
出处
《机械科学与技术》
CSCD
北大核心
2024年第8期1454-1461,共8页
Mechanical Science and Technology for Aerospace Engineering
关键词
并联导弹挂架
强度分析
等效静载荷法
子模型技术
减重优化设计
parallel missile pylons
strength analysis
equivalent static load method
sub-model technology
weight reduction optimization design
