上海交通大学学报

上海交通大学学报（自然版）

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三体船升沉和纵倾计算及其对兴波阻力的影响

王中1，卢晓平1，付攀2
  

  1. （1.海军工程大学 船舶与动力学院， 武汉 430033； 2.海军驻青岛造船厂军事代表室， 青岛 266000）
  • 收稿日期:2009-11-18 修回日期:1900-01-01 出版日期:2010-10-31 发布日期:2010-10-31

Calculation of the Sinkage and Trim of Trimaran and Their Effect on Wave Making Resistance

WANG Zhong1,LU Xiaoping1,FU Pan2
  

  1. (1.College of Naval Architecture and Power, Naval University of Engineering, Wuhan 430033, China; 2.Naval Representative Office of Qingdao Dockyard, Qingdao 266000, China)
  • Received:2009-11-18 Revised:1900-01-01 Online:2010-10-31 Published:2010-10-31

摘要： 基于三维Rankine源方法迭代计算三体船静水航行时的兴波阻力、升沉和纵倾.计算过程中采用NURBS曲面表达船体，根据迭代计算得到的升沉和纵倾确定船体平均浸湿表面，并用铺砌法对其进行全四边形网格划分，计算三体船及其中体的兴波阻力、升沉和纵倾.计算结果与试验结果比较表明，所提方法能够较准确地预报三体船静水航行升沉和纵倾，且考虑升沉和纵倾后，三体船兴波阻力数值计算精度有明显改进.

关键词: 三体船, 升沉, 纵倾, 兴波阻力

Abstract: The wave making resistance, the sinkage and trim of trimaran in calm water were iteratively calculated based on the Rankine source panel method. During the process, the NURBS surface was used to express the ship surface, the instantaneous mean wetted surface was calculated according to the preiteratively calculated sinkage and trim, and the fully quadrilateral mesh was generated by the paving method. The comparison between the calculated sinkage and trim and the experimental results indicates that with present method the trimaran sinkage and trim could be calculated very accurately, and the wave making resistance calculation precision could also be enhanced.

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