A Study of optimum control of oscillating hydrofoil in waves.

为了评估WDPS船舶的适航性，开发了计算船舶运动、波浪阻力增加和翼片推力的源代码。利用这些代码进行了箔片控制仿真测试，得出了以下结果：在波浪中使用振荡水翼是提高船舶适航性的有效方法。(1)减少50%的俯仰计算。(2)减少起伏是困难的。(3)“波浪阻力增加”在该系统中不成立，但计算波浪推力增加。(4)在波浪中控制翼型攻角的最佳状态，可计算出高推进性能。

To estimate seaworthiness bf the WDPS ship, source codes were developed to calculate the ship motion, resistance increase in waves and thrust generated by the foil.Using these codes, simulation of foil control were tested and following results are shown.Using a oscillating hydrofoil in waves is quite effective to improve the ship seaworthiness.(1) 50% less pitching are calculated.(2) Decrease of heaving is difficult.(3) "Resistance increase in waves" i& not hold in this system, but thrust increase in waves are calculated.(4) If attack angle of the foil is controlled optimum condition in waves, high propulsive performance is calculated.