A hybrid approach of adaptive surrogate model and sampling method for reliability assessment in multidisciplinary design optimization

IF 9.4 1区 工程技术 Q1 ENGINEERING, INDUSTRIAL
Mahdi Keramatinejad , Mahdi Karbasian , Hamidreza Alimohammadi , Karim Atashgar
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引用次数: 0

Abstract

Uncertainty is an inherent element of multidisciplinary design optimization (MDO), often leading to undesirable performance and potentially infeasible designs. Reliability-Based Multidisciplinary Design Optimization (RBMDO) aims to deliver solutions that achieve desirable performance metrics while remaining resilient to uncertainties. However, the RBMDO process is computationally intensive and can be impractical for launch vehicle (LV) design optimization. This paper presents an innovative hybrid approach that integrates Adaptive Response Surface Methodology (ARSM) with Directional Sampling (DS) to enhance the efficiency of reliability analysis. The ARSM-DS method yields faster and more effective results compared to traditional Monte Carlo Simulation (MCS) techniques. The study specifically focuses on the reliability assessment of a two-stage launch vehicle in its conceptual design phase. The methodology encompasses several critical steps: defining the reliability problem, identifying potential failure modes, establishing target reliability at the system level, modeling reliability, allocating reliability to subsystems, formulating the RBMDO problem, analyzing subsystem reliability using the ARSM-DS method, conducting multidisciplinary optimization based on reliability criteria, predicting overall system reliability, and evaluating computed reliability against the established target. This approach not only enhances the reliability analysis process but also significantly increases the feasibility of design optimization efforts in aerospace applications.
基于自适应代理模型和抽样方法的多学科设计优化可靠性评估
不确定性是多学科设计优化(MDO)的一个固有因素,经常导致不理想的性能和潜在的不可行的设计。基于可靠性的多学科设计优化(RBMDO)旨在提供解决方案,实现理想的性能指标,同时保持对不确定性的弹性。然而,RBMDO过程计算量大,对运载火箭(LV)设计优化不切实际。为了提高可靠性分析的效率,本文提出了一种将自适应响应面法(ARSM)与定向采样法(DS)相结合的混合可靠性分析方法。与传统的蒙特卡罗模拟(MCS)技术相比,ARSM-DS方法产生更快、更有效的结果。研究重点是两级运载火箭在概念设计阶段的可靠性评估。该方法包括几个关键步骤:定义可靠性问题,识别潜在失效模式,在系统层面建立目标可靠性,建立可靠性模型,对子系统进行可靠性分配,制定RBMDO问题,利用ARSM-DS方法分析子系统可靠性,基于可靠性准则进行多学科优化,预测系统整体可靠性,并根据既定目标对计算可靠性进行评估。该方法不仅提高了可靠性分析过程,而且显著提高了航空航天应用中设计优化工作的可行性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Reliability Engineering & System Safety
Reliability Engineering & System Safety 管理科学-工程:工业
CiteScore
15.20
自引率
39.50%
发文量
621
审稿时长
67 days
期刊介绍: Elsevier publishes Reliability Engineering & System Safety in association with the European Safety and Reliability Association and the Safety Engineering and Risk Analysis Division. The international journal is devoted to developing and applying methods to enhance the safety and reliability of complex technological systems, like nuclear power plants, chemical plants, hazardous waste facilities, space systems, offshore and maritime systems, transportation systems, constructed infrastructure, and manufacturing plants. The journal normally publishes only articles that involve the analysis of substantive problems related to the reliability of complex systems or present techniques and/or theoretical results that have a discernable relationship to the solution of such problems. An important aim is to balance academic material and practical applications.
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