基于三维势流理论,本文研究了不同支柱倾斜角度的小水线面双体船在设计航速下的耐波性能。将规则波中的运动响应幅值函数与海浪谱结合得到运动统计有义值。对比不同支柱倾斜角度的频率响应曲线,发现在相同海况条件下随着支柱倾斜角度增加,垂荡和纵摇峰值降低。结果表明,通过倾斜支柱可增加船舶运动的附加质量和阻尼,削弱频率响应曲线共振峰。
Based on the three-dimensional potential flow theory, this paper studied the seakeeping performance of Small Water-plane Area Twin Hull (SWATH) with different inclined struts at the design speed. Combining the motion response amplitude function in regular wave with wave spectrum, we get the significant statistics of motion response. By comparing the frequency response curves of different inclined struts under the same sea state condition, we find that as inclined angle increases, the peak value of pitch and heave reduces. It turns out that inclined strut increases the added mass and damping of ship motion, weaken the resonance peak.
2016,38(6): 20-23 收稿日期：2015-11-03
DOI：10.3404/j.issn.1672-7619.2016.06.004
分类号：U662
基金项目：国家自然科学基金资助项目(51509114);江苏省科技成果转化专项资金资助项目(BA2015042);江苏高校高技术船舶协同创新中心/江苏科技大学海洋装备研究院资助项目(HZ2016015)
作者简介：李冬琴(1979-),女,博士,副教授,从事多学科设计优化方法及现代船舶设计方法研究。
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