T型翼控制船舶在波浪上纵向运动的数值研究  

Numerical research on control of longitudinal motion of ship in waves by T-foil

作　　者：孙一方 姜宜辰 宗智[1,2,3] SUN Yifang;JIANG Yichen;ZONG Zhi(School of Naval Architecture Engineering,Dalian University of Technology,Dalian 116024,China;Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration,Shanghai 200240,China;Liaoning Engineering Laboratory for Deep-Sea Floating Structures,Dalian 116024,China)

机构地区：[1]大连理工大学船舶工程学院,辽宁大连116024 [2]高新船舶与深海开发装备协同创新中心,上海200240 [3]辽宁深海浮动结构工程实验室,辽宁大连116024

出　　处：《中国舰船研究》2018年第2期16-26,共11页Chinese Journal of Ship Research

基　　金：青岛海洋科学与技术国家实验室开放基金资助项目(QNLM2016ORP0402);国家自然科学基金资助项目(51679037;51279030);国家自然科学基金资助重点项目(51639003);国家重点基础研究发展计划(2013CB036101);中央高校基本科研业务费专项资金资助项目(DUT16RC(3)094)

摘　　要：[目的]主动控制摆角的T型翼可以在随船运动时产生更大的升力,改善船舶耐波性,因此需要对不同摆角控制信号的减摇效果进行计算和讨论。[方法]首先,利用细长体理论对Wigley船型在3种航速下不同波长规则波中的运动进行计算。然后,在此基础上对T型翼摆角的控制信号进行分析讨论,采用力矩控制的方式得到摆角随船体运动变化的控制方程,讨论不同工况下控制参数的值,并计算引入控制力矩后的Wigley船型在相应条件下的时域运动响应。最后,分别对采用3种信号单独控制后的减摇效果进行对比,之后对多信号联合控制进行初步研究。[结果]计算结果表明:与无T型翼作用的船相比,在高速状态下,响应峰值处的垂荡幅值可以减少32.43%,纵摇角最多可以有效减少57.62%,艏加速度可以减少61.17%;在Fr=0.3的情况下,采用角度信号控制T型翼的摆角减摇效果更明显,随着航速的增加,采用角速度信号控制的减摇效果更好。[结论]在实际应用中,可根据不同的航速采用不同的运动信号和控制参数控制T型翼摆角。[Objectives]A T-foil with an active control system can provide higher lift force and improve the seakeeping of a ship.It is necessary to calculate the anti-vertical motion effect with the different control signals.[Methods]The motion responses of the Wigley model in different wavelengths among three different Froude numbers are obtained via the slender body theory,and the lift force model of a T-foil is established.The torque control is used to obtain the governing equation of the T-foil's swing angle by analyzing the control signal.On the basis of calculating the motion of the Wigley model,the vertical motions of a ship with a T-foil in different control signals are calculated in time domain,and the attenuation effect with the three different control signals is compared.Finally the multi-signals hybrid control is studied preliminarily.[Results]The results show that the T-foil with torque control can reduce 32.43%of the heave and 57.62%of the pitch angle response extremum,and can provide a reduction of more than 61.17%in bow acceleration at peak response compared with a ship without a T-foil and with a high Froude number.The anti-vertical motion effect in the condition of Fr=0.3 is more obvious when the lift moment is controlled by the pitch angle signal,and as the speed of the ship increases,using the control signal of pitch angular velocity can obtain a lower vertical motion response.[Conclusions]In practical application the swinging angle of the T-foil can be controlled by different signals and control parameters at different speeds.

关 键 词：T型翼 细长体理论 纵向减摇 力矩控制 

分 类 号：U661.3[交通运输工程—船舶及航道工程]