局部气垫双体船在规则波中的运动研究  

Study on motion of partial air cushion support catamaran in regular waves

作　　者：杨静雷[1] 孙寒冰[1] 郭志群[1] 

机构地区：[1]哈尔滨工程大学船舶工程学院,黑龙江哈尔滨150001

出　　处：《华中科技大学学报（自然科学版）》2015年第11期104-109,共6页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(51409069;51409054)

摘　　要：结合模型试验和数值计算两种方法研究了局部气垫双体船在迎浪规则波中的运动.首先,通过模型试验对气垫压力进行监测,记录了其随波浪的变化情况,并与其他参数进行对比,得到了不同运动随波浪的变化规律;然后,采用数值计算方法对其在波浪中的运动响应进行预报,记录了气垫舱室内的速度矢量和自由液面变化,并将计算结果和试验现象进行对比分析.结果表明:气垫压力随波浪的周期性变化规律与升沉、纵摇运动相反,与加速度相同;数值计算能够对各个运动的周期性振荡进行合理的预报,且各运动参数的幅值响应在高频区具有相当的精度,但数值计算对纵摇响应的预报误差较大,须要改善气囊形式提高精度.Motion of partial air cushion support catamaran （PACSCAT ） sailing in regular waves was studied through numerical calculation and model test .First ,pressure variation was obtained through the monitoring of air cushion pressure and compared with other parameters ,and changes rules of vari‐ous motions were obtained .Then ,numerical calculation method was used to carry out theoretical pre‐diction of the motion response ,changes of free surface and velocity vector in air cushion cabin were re‐corded ,and the calculated results and the experimental phenomena were analyzed . The outcomes show that the air pressure has opponent periodic variation to pitching and heave in waves ,but same to the acceleration .T he numerical calculation can predict the periodic oscillation of each movement rea‐sonably ,and the precision of the amplitude response of each parameter is considerable in high frequen‐cy region ,but it has large error in calculating the response of pitch ,w hich needs to improve the airbag for enhancing the accuracy .

关 键 词：局部气垫双体船 模型试验 规则波 数值计算 幅值响应 

分 类 号：U661.3[交通运输工程—船舶及航道工程]