摘要
针对滑行艇高速航行的运动特性进行其动态阻力的估算研究。首先通过分析滑行艇在高速航行时艇体受到的各种水动力,建立其六自由度操纵性数学模型,并利用四阶龙格—库塔法解算滑行艇的运动姿态。然后计算滑行艇高速航行时的动态阻力,所得结果与船模试验数据吻合较好,并对各种滑行阶段的运动特性进行分析,结果表明基于水动力分析的阻力估算方法具有较强的工程实用性。
Research on the calculation of the dynamic resistance of high-speed planning craft based on its motion characteristics is undertaken. Firstly, the six-degree of freedom maneuvering motion equation of the planing craft is established by an analysis of the hydrodynamic forces of high-speed planing craft hull. And the planing craft motion attitude is obtained by the way of Runge-Kutta calculation. Then the resistance of high-speed planing craft is calculated based on the semi-theoretical semi-empirical formulas. The results are in good agreement with the model- ship test. Then the motion characteristics of the craft are analyzed, which shows that the method based on the analysis of hull hydrodynamics is applicable for engineering.
出处
《船舶》
2009年第4期4-7,共4页
Ship & Boat
关键词
滑行艇
阻力估算
水动力
动升力
planing craft
calculation of resistance
hydrodynamics
hydrodynamic lift
