由于小水线面双体船的结构与受力特点比普通单体船更为复杂,因此在结构的优化设计中存在更多的难点。针对小水线面双体船在横向弯曲工况下,存在着大量高应力区域的问题,本文采用自适应模拟退火算法进行优化,获得更合理的设计参数。结果表明,模拟退火算法在双体船结构的设计与优化中有着良好的工程适用性。本研究可为双体船的结构设计与优化提供参考。
The structure and mechanical characteristics of Small Waterplane Area Twin Hull (SWATH) are usually more complicated than ordinary mono-hull ships, therefore there are more difficulties when doing structural optimization and design. When under transverse bending condition, the stress in many regions is very high. This paper utilizes adaptive simulated annealing algorithm to find better design variables. The approach obtained better results and validating the application in engineering practicability. This research provides reference when doing SWATH structural design or structural optimization.
2016,38(5): 17-20 收稿日期:2015-11-16
DOI:10.3404/j.issn.1672-7619.2016.05.004
分类号:U662.2
作者简介:张维毅(1990-),男,硕士研究生,研究方向为船舶与海洋工程结构力学及结构优化设计。
参考文献:
[1] 史文强,于宪钊.国外小水线面双体船发展状况及趋势[J].舰船科学技术, 2012, 34(S2):4-19. SHI Wen-qiang, YU Xian-zhao. The development and future trend of foreign SWATH ships[J]. Ship Science and Technology, 2012, 34(S2):4-19.
[2] 郑莎莎,郑梓荫.小水线面双体船船体结构问题探讨[J].船舶工程, 2005, 27(1):12-18.
[3] 李仲伟,吴有生,崔维成.基于有限元法的小水线面双体船结构优化[J]. 船舶力学, 2005, 9(2):99-108.
[4] WU Y S, NI Q J, XIE W, et al. Hydrodynamic performance and structural design of a SWATH ship[J]. Journal of Ship Mechanics, 2008, 12(3):388-400.
[5] SEKULSKI Z. Least-weight topology and size optimization of high speed vehicle-passenger catamaran structure by genetic algorithm[J]. Marine Structures, 2009, 22(4):691-711.
[6] HEGGELUND S E, MOAN T, OMA S. Transverse strength analysis of catamarans[J]. Marine Structures, 2000, 13(6):517-535.
[7] 程耿东.结构优化新方法及其计算机实现[J].力学与实践, 1992, 14(1):1-6.
[8] KIRKPATRICK S, GELATT C D JR, VECCHI M P. Optimization by simulated annealing[J]. Science, 1983, 220(4598):671-680.
[9] VAN LAARHOVEN P J M, AARTS E H L. Simulated annealing:Theory and applications[M]. Netherlands:Springer, 1987.