检索结果-南通市图书馆

Design optimization of the s-frame to improve crashworthiness

Acta Mechanica sinica 2014年第4期30卷 589-599页

作者： shu-Tian Liu Ze-Qi Tong Zhi-Liang Tang Zong-Hua Zhang state Key Laboratory of structure Analysis for Industrial Equipment Dalian University of Technology

In this paper, the s-frames, the front side rail structures of automobile, were investigated for crashworthihess. Various cross-sections including regular polygon, nonconvex polygon and multi-cell with inner stiffener sections were investigated in terms of energy absorption of s-frames. It was determined through extensive numerical simulation that a multi-celI s-frame with double vertical internal stiffeners can absorb more energy than the other configurations. shape optimization was also carried out to improve energy absorption of the s-frame with a rectangular section. The center composite design of experiment and the sequential response surface method （sRsM） were adopted to construct the approximate design sub-problem, which was then solved by the feasible direction method. An innovative double s- frame was obtained from the optimal result. The optimum configuration of the s-frame was crushed numerically and more plastic hinges as well as shear zones were observed during the crush process. The energy absorption efficiency of the structure with the optimal configuration was improved compared to the initial configuration.

关键词： Thin-walled structure s-frame Axial crush Response surface Crashworthiness

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

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

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

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：