Comparison of the reliability-based and safety factor methods for structural design

doi:10.1016/j.apm.2019.03.018

IMECH-IR > 流固耦合系统力学重点实验室

	Comparison of the reliability-based and safety factor methods for structural design
	Wang XJ; Shi QH; Fan WC; Wang RX(王睿星); Wang L
通讯作者	Wang, Xiaojun(xjwang@buaa.edu.cn)
发表期刊	APPLIED MATHEMATICAL MODELLING
	2019-08-01
卷号	72 页码:68-84
ISSN	0307-904X
摘要	Reliability-based design optimization theory has been widely acknowledged as an advanced and advantageous methodology for complex structural system design. Comparatively, the traditional safety factor design method has fallen out of favor with designers since it is simply just a comprehensive expression of all the uncertainties existing in a practical engineering structure, which has been verified to be unreasonable. Moreover, there is no description of the method for searching for the optimal design. In this paper, a comparison of the two approaches is performed for the optimization results and process. It is demonstrated that the weight of the designed structure by the reliability based optimization is not heavier than that by the safety factor design method under the same reliability requirements. The time efficiency, error estimates and sensitivity analysis are also compared to discuss the advantages and disadvantages of the two approaches. Eventually, the advancement of the reliability-based design optimization is illustrated with optimization designs of a two-bar truss and one practical supersonic wing. (C) 2019 Elsevier Inc. All rights reserved.
关键词	Safety factor method Reliability-based design optimization Structural design Uncertainty
DOI	10.1016/j.apm.2019.03.018
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000470051900005
关键词[WOS]	RESPONSE ANALYSIS ; DYNAMIC-RESPONSE ; PARAMETERS ; OPTIMIZATION ; UNCERTAINTY ; SENSITIVITY ; CRITERIA ; SYSTEMS ; MODEL
WOS研究方向	Engineering ; Mathematics ; Mechanics
WOS类目	Engineering, Multidisciplinary ; Mathematics, Interdisciplinary Applications ; Mechanics
资助项目	National Key Research and Development Program[2016YFB0200700] ; National Natural Science Foundation of China[11572024] ; National Natural Science Foundation of China[11872089] ; National Natural Science Foundation of China[11432002] ; Defense Industrial Technology Development Program[JCKY2016601B001] ; Defense Industrial Technology Development Program[JCKY2017601B001] ; Defense Industrial Technology Development Program[JCKY2017208B001] ; Postgraduate Innovation Practice Fund of Beihang University[YCSJ-01-2018-07]
项目资助者	National Key Research and Development Program ; National Natural Science Foundation of China ; Defense Industrial Technology Development Program ; Postgraduate Innovation Practice Fund of Beihang University
论文分区	二类/Q1
力学所作者排名	4
RpAuthor	Wang, Xiaojun
引用统计	被引频次：43[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/79319
专题	流固耦合系统力学重点实验室
推荐引用方式 GB/T 7714	Wang XJ,Shi QH,Fan WC,et al. Comparison of the reliability-based and safety factor methods for structural design[J]. APPLIED MATHEMATICAL MODELLING,2019,72:68-84.
APA	Wang XJ,Shi QH,Fan WC,王睿星,&Wang L.(2019).Comparison of the reliability-based and safety factor methods for structural design.APPLIED MATHEMATICAL MODELLING,72,68-84.
MLA	Wang XJ,et al."Comparison of the reliability-based and safety factor methods for structural design".APPLIED MATHEMATICAL MODELLING 72(2019):68-84.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Jp2019202.pdf（1921KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览下载