版权说明 操作指南
首页 > 成果 > 详情

考虑载荷随机性的可行域调整的结构拓扑优化设计

认领
导出
下载 Link by 中国知网学术期刊 Link by 维普学术期刊 Link by 万方学术期刊
反馈
分享
QQ微信 微博
成果类型:
期刊论文
论文标题(英文):
Feasible Domain Adjustment Topology Optimization Designs of Structures under Stochastic Loads
作者:
石军;荣见华;俞燎宏;唐承铁;赵志军
通讯作者:
Rong, Jianhua(rongjhua@aliyun.com)
作者机构:
[石军; 俞燎宏; 唐承铁; 荣见华; 赵志军] School of Automotive and Mechanical Engineering, Changsha University of Science and Technology, Changsha, 410076, China
[赵志军] Department of Civil Engineering, Changsha University, Changsha, 410003, China
[唐承铁] Key Laboratory of Safety Design and Reliability Technology for Engineering Vehicle, Changsha University of Science and Technology, Changsha, 410114, China
[荣见华; 俞燎宏] Key Laboratory of Lightweight and Reliability Technology for Engineering Vehicle of Hunan Province, Changsha University of Science and Technology, Changsha, 410114, China
通讯机构:
School of Automotive and Mechanical Engineering, Changsha University of Science and Technology, Changsha, China
语种:
中文
关键词:
稳健拓扑优化;可行域调整;柔顺度优化;随机载荷;结构优化
关键词(英文):
Optimization;Shape optimization;Stochastic systems;Topology;Approximate expressions;Feasible domain adjustment;Objective functions;Stochastic loads;Structural topology optimization;Structure optimization;Topology configurations;Weighted coefficients;Structural optimization
期刊:
机械工程学报
ISSN:
0577-6686
年:
2017
卷:
53
期:
23
页码:
116-128
基金类别:
11372055:国家自然科学基金 11302033:国家自然科学基金 2013KFJJ03:工程车辆轻量化与可靠性技术湖南省高校重点实验室(长沙理工大学)开放基金资助项目
机构署名:
本校为第一且通讯机构
院系归属:
汽车与机械工程学院
摘要:
考虑载荷大小和方向的不确定性,以结构柔顺度的期望和方差的加权和为目标函数,结构体积为约束函数,研究稳健结构拓扑优化方法。首先给出载荷大小和方向不确定情况下结构柔顺度期望和方差及其导数的显式近似式,而后改进可行域调整方案,提出具有收敛特征的稳健结构拓扑优化设计方法,探讨结构柔顺度期望和方差的权重因子以及随机量的方差对拓扑构型的影响。给出的算例表明,不论是确定载荷拓扑优化还是随机载荷拓扑优化,方法是可行和有效的,且可获得一系列清晰的拓扑构型和稳健的优化拓扑。
摘要(英文):
Considering stochastic cases of load values and directions, a robust structural topology optimization method for the weighted sum minimizing problem of the expected value of the compliance and its variance with a volume constraint, is proposed. Firstly, explicit approximate expressions of the compliance expected value, its variance and their derivatives are derived. Secondly, an improved feasible domain adjustment scheme and a set of algorithms for robust structural topology optimization designs are given. The effects of the weighted coefficien...

反馈

验证码:
看不清楚,换一个
确定
取消

成果认领

标题:
用户 作者 通讯作者
请选择
请选择
确定
取消

提示

该栏目需要登录且有访问权限才可以访问

如果您有访问权限,请直接 登录访问

如果您没有访问权限,请联系管理员申请开通

管理员联系邮箱:yun@hnwdkj.com