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多学科设计优化(MDO)被认为是目前处理海洋结构物设计的有效方法。中国船舶科学研究中心也开展了将多学科设计优化应用于船舶设计的研究。上一篇文章从船舶设计研究人员的角度出发对多学科设计优化的理论进行了介绍并且对一条发表了的国外舰船的模型进行了优化。在本文中,作者对国内的一艘实船的概念设计建立了多学科设计优化模型,该模型包括快速性、操纵性和船中剖面的总纵强度分析,它有37个设计变量,9 个约束和两个目标。iSIGHT 9.0被用来集成这些模块并执行优化,最终找到的优化设计不仅提高了该船的快速性,同时减小了船中剖面的截面积。
Multidisciplinary design optimization (MDO) is considered to be an effective method to address the design of marine structures. China Ship Science and Research Center also carried out multi-disciplinary design optimization applied to the ship design. The previous article introduced the theory of multidisciplinary design optimization from the perspective of ship design researchers and optimized a published model of foreign ships. In this paper, the author establishes a multidisciplinary design optimization model for the conceptual design of a domestic ship, which includes fastness, maneuverability and longitudinal strength analysis of the midship section, with 37 design variables and 9 Constraints and two goals. iSIGHT 9.0 was used to integrate these modules and perform optimization. The resulting optimized design not only increased the speed of the vessel but also reduced the cross-sectional area of the ship’s midship.