中国舰船研究2017，Vol.12Issue(3)：1-6,15,7.DOI:10.3969/j.issn.1673-3185.2017.03.001
规则波浪中舰船纯稳性丧失计算研究
Pure loss of stability calculation of naval ship in regular waves
朱军 1刘瑞杰 2葛义军 1王智宇 1黄昆仑1
作者信息
- 1. 海军工程大学舰船工程系,湖北武汉430033
- 2. 海军装备研究院,北京100073
- 折叠
摘要
Abstract
The pure loss of stability of a ship is one of the failure modes of the second-generation intact stability criteria. Based on the static surface coordinate system, the generalized pitch angle and draught variable are defined, and a wave equation with clear physical meaning is deduced. Based on the Froude-Krylov hypothesis, combined with AutoCAD 2D surface area computing technology and the VBA programming method, a calculation method of the loss of pure stability of ships in regular waves is proposed. For a naval ship, the righting arm is calculated in regular waves, and the large heel ship state is shown to have an identical convergence. The results of the calculations show that a significant reduction in the meta centric height of the maximum righting arm occurs not just in a wave crest but also in a trough. By analyzing the wave profile under the hull, it can clearly be seen that wave amplitude above the deck or below the bottom of the hull causes the pure loss of stability, and in oblique waves or beam seas, the pure loss of stability is caused the asymmetry of the wave profile on the hull. The coinciding convergence of the calculations shows that the process of the definition of generalized pitch can be employed to assess the pure loss of stability of naval ships in regular waves.关键词
舰船/纯稳性丧失/规则波浪Key words
naval ship/pure loss of stability/regular waves分类
交通工程引用本文复制引用
朱军,刘瑞杰,葛义军,王智宇,黄昆仑..规则波浪中舰船纯稳性丧失计算研究[J].中国舰船研究,2017,12(3):1-6,15,7.
