中国舰船研究
中國艦船研究
중국함선연구
CHINESE JOURNAL OF SHIP RESEARCH
2014年
2期
6-11
,共6页
李聪%王冬姣%叶家玮%李德玉%梁富琳
李聰%王鼕姣%葉傢瑋%李德玉%樑富琳
리총%왕동교%협가위%리덕옥%량부림
被动式摆翼%波浪推进%模型试验%数值仿真
被動式襬翼%波浪推進%模型試驗%數值倣真
피동식파익%파랑추진%모형시험%수치방진
passive oscillating foil%wave propulsion%model test%numerical simulation
为解决受控主动摆翼驱动装置复杂、机械效率较低的问题,研究依靠升沉运动产生的力矩来驱动俯仰运动的被动摆翼装置,并将其应用于波浪动力艇。在波浪作用下,将被动摆翼安装于艇体底部的一定位置处,产生的推力即可推艇前进。在模型试验中,通过改变波浪周期、波高和控制机构的设置,比较试验艇的自由航行速度。结果表明,试验艇的航速与波高呈正相关关系,且当波长与船长之比约为1.8时推进效果最佳。通过数值仿真,显示两种控制机构配置时的水翼工作过程,并估算在一定波浪参数下波浪动力艇可达到的航速,所估算的航速与试验结果吻合较好。
為解決受控主動襬翼驅動裝置複雜、機械效率較低的問題,研究依靠升沉運動產生的力矩來驅動俯仰運動的被動襬翼裝置,併將其應用于波浪動力艇。在波浪作用下,將被動襬翼安裝于艇體底部的一定位置處,產生的推力即可推艇前進。在模型試驗中,通過改變波浪週期、波高和控製機構的設置,比較試驗艇的自由航行速度。結果錶明,試驗艇的航速與波高呈正相關關繫,且噹波長與船長之比約為1.8時推進效果最佳。通過數值倣真,顯示兩種控製機構配置時的水翼工作過程,併估算在一定波浪參數下波浪動力艇可達到的航速,所估算的航速與試驗結果吻閤較好。
위해결수공주동파익구동장치복잡、궤계효솔교저적문제,연구의고승침운동산생적력구래구동부앙운동적피동파익장치,병장기응용우파랑동력정。재파랑작용하,장피동파익안장우정체저부적일정위치처,산생적추력즉가추정전진。재모형시험중,통과개변파랑주기、파고화공제궤구적설치,비교시험정적자유항행속도。결과표명,시험정적항속여파고정정상관관계,차당파장여선장지비약위1.8시추진효과최가。통과수치방진,현시량충공제궤구배치시적수익공작과정,병고산재일정파랑삼수하파랑동력정가체도적항속,소고산적항속여시험결과문합교호。
To deal with the complexity and inefficiency of the driving device for actively controlled oscillat-ing foils,the concept of passive oscillating foils,whose pitch motion is driven by the moment induced by the heave motion,is investigated and applied to a wave propelled craft. Particularly,the foils are installed beneath the craft to generate thrust so that the craft can move forward. In the following model test,free run-ning speeds under different wave period,wave height,and foil control configurations are measured and then compared. It is shown that the free running speed of the craft is of positive correlation with wave heights,and the optimum performance is obtained when the ratio of incident wave length to ship length is approximately 1.8. Through numerical simulation,the working process of foils with two different control mechanism configurations is also demonstrated,where the free running speed under certain wave parame-ters is predicted,and the result is in good agreement with the measured data.