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
Corresponding AuthorWang, Xiaojun(xjwang@buaa.edu.cn)
Source PublicationAPPLIED MATHEMATICAL MODELLING
2019-08-01
Volume72Pages:68-84
ISSN0307-904X
AbstractReliability-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.
KeywordSafety factor method Reliability-based design optimization Structural design Uncertainty
DOI10.1016/j.apm.2019.03.018
Indexed BySCI ; EI
Language英语
WOS IDWOS:000470051900005
WOS KeywordRESPONSE ANALYSIS ; DYNAMIC-RESPONSE ; PARAMETERS ; OPTIMIZATION ; UNCERTAINTY ; SENSITIVITY ; CRITERIA ; SYSTEMS ; MODEL
WOS Research AreaEngineering ; Mathematics ; Mechanics
WOS SubjectEngineering, Multidisciplinary ; Mathematics, Interdisciplinary Applications ; Mechanics
Funding ProjectNational 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]
Funding OrganizationNational Key Research and Development Program ; National Natural Science Foundation of China ; Defense Industrial Technology Development Program ; Postgraduate Innovation Practice Fund of Beihang University
Classification二类/Q1
Ranking4
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/79320
Collection流固耦合系统力学重点实验室
Recommended Citation
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.
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