不确定条件下工程系统多学科设计优化研究综述

IF 3.5 Q1 ENGINEERING, MULTIDISCIPLINARY International Journal of Structural Integrity Pub Date : 2022-07-05 DOI:10.1108/ijsi-05-2022-0076
Debiao Meng, S. Yang, Chao He, Hongtao Wang, Zhiyuan Lv, Yipeng Guo, P. Nie
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引用次数: 48

摘要

基于可靠性的多学科设计优化(RBMDO)作为一种先进的计算方法,在现代复杂工程系统的设计问题中得到了广泛的认可,不仅因为它能准确地评估不确定因素的影响,而且在性能的经济性和安全性之间取得了相对较好的平衡。然而,随着工程技术的日益复杂,所提出的RBMDO方法逐渐不能有效解决高非线性耦合多学科不确定性设计优化问题,限制了RBMDO的工程应用。近几十年来,在RBMDO领域已经做了许多有价值的工作来应对上述挑战。本研究旨在对这些研究进行系统回顾,突出研究的机遇和挑战,并试图指导未来的研究工作。本研究对RBMDO理论进行了全面的综述,主要包括不同不确定性的可靠性分析方法和RBMDO的解耦策略。首先,对多学科设计优化(MDO)进行了初步研究。给出了MDO的基本概念和相应的数学公式。然后,详细介绍了采用不同可靠性分析策略的三种RBMDO方法的操作步骤。针对不同不确定性类型下的设计优化问题,提出了RBMDO方法。并以某水轮机转轮叶片在一定工况下的优化问题为例,说明了该方法的工程应用。最后,提出了RBMDO未来面临的三个方面挑战,即时变不确定性分析;讨论了高精度代理模型,以及模型的验证、验证和认可(VVA)。本研究的范围是系统地介绍RBMDO理论。综述了三种常用的RBMDO-SORA方法,包括方法的一般步骤和数学模型。
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Multidisciplinary design optimization of engineering systems under uncertainty: a review
PurposeAs an advanced calculation methodology, reliability-based multidisciplinary design optimization (RBMDO) has been widely acknowledged for the design problems of modern complex engineering systems, not only because of the accurate evaluation of the impact of uncertain factors but also the relatively good balance between economy and safety of performance. However, with the increasing complexity of engineering technology, the proposed RBMDO method gradually cannot effectively solve the higher nonlinear coupled multidisciplinary uncertainty design optimization problems, which limits the engineering application of RBMDO. Many valuable works have been done in the RBMDO field in recent decades to tackle the above challenges. This study is to review these studies systematically, highlight the research opportunities and challenges, and attempt to guide future research efforts.Design/methodology/approachThis study presents a comprehensive review of the RBMDO theory, mainly including the reliability analysis methods of different uncertainties and the decoupling strategies of RBMDO.FindingsFirst, the multidisciplinary design optimization (MDO) preliminaries are given. The basic MDO concepts and the corresponding mathematical formulas are illustrated. Then, the procedures of three RBMDO methods with different reliability analysis strategies are introduced in detail. These RBMDO methods were proposed for the design optimization problems under different uncertainty types. Furtherly, an optimization problem for a certain operating condition of a turbine runner blade is introduced to illustrate the engineering application of the above method. Finally, three aspects of future challenges for RBMDO, namely, time-varying uncertainty analysis; high-precision surrogate models, and verification, validation and accreditation (VVA) for the model, are discussed followed by the conclusion.Originality/valueThe scope of this study is to introduce the RBMDO theory systematically. Three commonly used RBMDO-SORA methods are reviewed comprehensively, including the methods' general procedures and mathematical models.
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来源期刊
International Journal of Structural Integrity
International Journal of Structural Integrity ENGINEERING, MULTIDISCIPLINARY-
CiteScore
5.40
自引率
14.80%
发文量
42
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