检索结果-南通市图书馆

Stress Relaxation and sensitivity weight for Bi-Directional Evolutionary Structural Optimization to Improve the Computational Efficiency and Stabilization on Stress-Based Topology Optimization

引用

Computer Modeling in Engineering & Sciences 2021年第2期126卷 715-738页

作者： Chao Ma Yunkai Gao Yuexing Duan Zhe Liu School of Automotive Studies Tongji UniversityShanghai201804China

Stress-based topology optimization is one of the most concerns of structural optimization and receives much attention in a wide range of engineering *** solve the inherent issues of stress-based topology optimization,many schemes are added to the conventional bi-directional evolutionary structural optimization(BESO)method in the previous ***,these schemes degrade the generality of BESO and increase the computational *** study proposes an improved topology optimization method for the continuum structures considering stress minimization in the framework of the conventional BESO method.A global stress measure constructed by p-norm function is treated as the objective *** stabilize the optimization process,both qp-relaxation and sensitivity weight scheme are *** variables are updated by the conventional BESO *** 2D and 3D examples are used to demonstrate the validity of the proposed *** results show that the optimization process can be stabilized by *** value of q and p are crucial to reasonable *** proposed sensitivity weight scheme further stabilizes the optimization process and evenly distributes the stress *** computational efficiency of the proposed method is higher than the previous methods because it keeps the generality of BESO and does not need additional schemes.

关键词： Stress-based topology optimization aggregation function stress relaxation sensitivity weight bi-directional evolutionary structural optimization

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Comprehensive Evaluation System of Rural Area Network Line Loss Management

Comprehensive Evaluation System of Rural Area Network Line L...

引用

第30届中国控制与决策会议

作者： Jia Yu Yanhong Chen Junjiao Zhao Licheng Yan Electric Power Research Institute of Liaoning Power Grid Company Limited School of Information Science & Engineering Northeastern University

This paper is analyzed the problem that the line loss of the rural network is more serious and lacks the quantitative management comprehensive evaluation system. First of all, this paper is classified rural network courts, followed by the use of Delphi method to establish a comprehensive evaluation system of rural area network loss management. Then, AHP is used to carry out subjective assignment and sensitivity weighting method to objectively assign values. The final weight is obtained by combining the subjective and objective assignment. Finally, the index score function is obtained through curve fitting, and the comprehensive score is made for the rural network area. Based on the classification, each type of courts area is analyzed to find the difference of each type of courts area.

关键词： classification of platform area Evaluation System Delphi method sensitivity weight

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：