半约束模型试验--一种验证随浪和斜浪中波浪力计算的手段

本文采用半约束模型试验技术，对一条高速船在规则波中随浪和斜浪工况进行了流体动力系列试验，以探讨航运的安全性，验证作用于船体上波浪力的估算方法。对每次试验，以波动方程的形式采用数值估算方法确定环绕船模的波浪运动的时间历程。并用同样的方法从测量数据中提取垂荡和纵摇与模型测量运动，一阶波导纵荡、横荡作用力和首摇力矩。因此合理比较理论计算的波浪力与力矩的时间历程成为可能。这表明SSPA海事动力学的研究所(MDL)模型试验设施可以提供高质量的测量，与所述计算方法结合起来可用来验证理论计算和建立半经验方法。

Semi-captive Model Tests-a Tool for Validation of Calculated Wave Forces in Following and Quartering Waves

A series of semi - captive model tests were performed for a high - speed vessel in following and quar-tering waves. A numerical method was used to determine the time history of the wave motion around the model shipfor every test in form of a wave equation. The same method was also used to extract the first order heave and pitchmotion, the first order wave - induced surge and sway force and yaw moment from the measured data. Thereby, ithas become possible to rationally compare the time histories of the theoretically calculated wave forces and momentswith the model measured.It is proved that the facility for model tests in the Maritime Dynamics Laboratory (MDL) at SSPA can delivermeasurements of high quality and these measurements in combination with the described evaluation method areuseful for rational validation of theoretical calculations and for derivation of semi - empiric calculation methods.