基于多学科可靠性的海上浮式风力机支撑结构及调谐质量阻尼器设计优化

IF 11 1区 工程技术 Q1 ENGINEERING, INDUSTRIAL
Tong Chang , Yongbo Peng
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引用次数: 0

摘要

采用调谐质量阻尼器(TMDI)等振动控制技术是实现深海环境下浮式海上风力发电机组安全性和经济性的有效方法。但是,现有的研究还需要对fot支撑结构和TMDI的集成设计进行完善。为此,本研究开展了基于多学科可靠性的FOWT-TMDI系统设计优化(RBDO),即在随机风浪荷载作用下,对FOWT支撑结构和TMDI进行同步设计优化。为了加速优化,使用了基于深度神经网络的代理模型和面向顺序预测的方案。为了说明问题,本文考虑了南海恶劣环境下fft - tmdi系统的场址优化设计。随后,对NSGA-II算法进行了嵌入式改进,以解决多学科RBDO问题。数值结果表明,采用多学科RBDO方法对FOWT支撑结构和TMDI同时进行优化设计的优势在于,在保持塔顶相对较小位移的同时,支撑结构的成本降低了约10%。而且,通过多学科RBDO, TMDI的效率比通过分步设计优化的效率更高,支撑结构的成本更低,从而实现了双赢。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Multidisciplinary reliability-based design optimization of floating offshore wind turbine support structure and tuned mass-damper-inerter
Using vibration control technology such as tuned mass-damper-inerter (TMDI) is an effective method in achieving the safety and cost-effectiveness of floating offshore wind turbines (FOWTs) in deep-sea environment. However, existing research needs refinement for the integrated design of FOWT support structure and TMDI. To this end, a multidisciplinary reliability-based design optimization (RBDO) of the FOWT-TMDI system, i.e., simultaneous design optimization of FOWT support structure and TMDI, subjected to stochastic wind and wave loads is carried out in this study. To accelerate optimization, surrogate models based on deep neural networks and order-prediction-oriented schemes are used. For illustrative purposes, the site-specific design optimization of the FOWT-TMDI system under the harsh environment in the South China Sea is considered. Subsequently, embedded improvements are made to the NSGA-II algorithm to address the multidisciplinary RBDO problem. Numerical results reveal the advantages of the simultaneous design optimization of the FOWT support structure and TMDI through multidisciplinary RBDO, e.g., the cost of the support structures decreased by about 10 % while maintaining the relatively small tower top displacements. Moreover, through the multidisciplinary RBDO, the efficiency of TMDI is higher than that through the step-by-step design optimization, and the cost of the support structure is lower, thus achieving a win-win situation.
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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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