Hull form optimization design of SWATH with combination evaluations of resistance and seakeeping performance. (15th November 2022)

• Record Type: Journal Article
• Authors: Guan, Guan; Zhuang, Zhengmao; Yang, Qu; Wang, Panpan; Jin, Songyu
• Is Part Of: Ocean engineering. Volume 264(2022)
• Publication Date: 2022-11-15
• Subjects: SWATH -- Optimization -- Resistance -- Seakeeping -- NSGA-II; Ocean engineering -- Periodicals; Ocean engineering; Periodicals; 620.4162
• DOI: 10.1016/j.oceaneng.2022.112513
• Languages: English
• ISSNs: 0029-8018

Abstract

Abstract: With the rapid development of the marine economy, marine operations are gradually diversified. To improve the hydrodynamic performance of SWATH in offshore working conditions, a design optimization method for Small Water-plane Area Twin Hull (SWATH) considering the resistance and seakeeping performance is proposed. The automatic optimization design of SWATH hull form with minimum resistance at different speeds is carried out to obtain a set of Pareto optimal solutions. Then the seakeeping performance of the original and the Pareto optimal solution set are predicted. On this basis, a comprehensive evaluation method based on the composite weight factor of SWATH resistance and seakeeping performance is provided. The results show that the method can obtain a hull form scheme with better hydrodynamic performance than the original hull form. In addition, it can guide the hull form optimization design of SWATH. Highlights: A design optimization method for SWATH considering the resistance and seakeeping performance is proposed. The automatic design of SWATH with minimum resistance at different speeds is carried out to obtain optimal solutions. A comprehensive evaluation method based on the composite weight factor of SWATH resistance and seakeeping is provided.