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首页> 外文会议>ASME international conference on ocean, offshore and arctic engineering >ESTIMATION OF FLUCTUATING PROPELLER TORQUE OF FULL-SCALE SHIP USING FREE-RUNNING MODEL IN WAVES
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ESTIMATION OF FLUCTUATING PROPELLER TORQUE OF FULL-SCALE SHIP USING FREE-RUNNING MODEL IN WAVES

机译：利用波浪中的自由运行模型估算全尺寸船舶的波动螺旋桨转矩

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摘要

The authors propose a method to estimate full-scale propeller torque consisting of low-frequency and high-frequency components in waves using measured data of free-running model ship. The duct fan auxiliary thruster (DFAT) and the rudder-effectiveness and speed correction (RSC) ensure similar model ship motion to full-scale in external forces, where RSC controls the model ship propeller rate of revolution and the auxiliary thrust depending on measured model ship speed. Analyzing a fluctuating component of effective inflow velocity to propeller due to waves, the method estimates full-scale fluctuating propeller torque in waves. This method also makes it possible to adopt into free-running model ship tests any engine model simulating interaction between propeller torque and engine torque. Trial application of the method exemplifies the property of full-scale fluctuating propeller torque comparing with that of model ship.
机译：作者提出了一种使用自航模型船的实测数据估算波浪中由低频和高频成分组成的满量程螺旋桨扭矩的方法。管道风扇辅助推进器（DFAT）和方向舵有效性和速度校正（RSC）确保在外力作用下，模型船的运动达到满刻度的比例，其中RSC根据测量的模型控制模型船的螺旋桨转速和辅助推力船速。通过分析波浪引起的螺旋桨有效流入速度的波动分量，该方法可以估算波浪中满量程的螺旋桨转矩。这种方法还可以将模拟螺旋桨扭矩和发动机扭矩之间相互作用的任何发动机模型用于自由运行模型试验中。与模型船相比，该方法的试用证明了全尺寸螺旋桨转矩的波动特性。

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