喷泵型水下滑翔机垂直面内定常运动特性计算  

Steady motion performance calculation of underwater glider with jet pump in vertical plane

作　　者：顾建农[1] 张志宏[1] 王冲[1] 李宝仁[2] 

机构地区：[1]海军工程大学理学院,湖北武汉430033 [2]华中科技大学机械科学与工程学院,湖北武汉430074

出　　处：《华中科技大学学报（自然科学版）》2017年第5期84-88,共5页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家高技术研究发展计划资助项目(2012AA091002)

摘　　要：为了了解带喷泵的水下滑翔机在垂直面内定常运动的特性,依据滑翔机六自由度空间运动方程,建立了垂直面内定常运动的运动方程,给出了其迭代计算算法.利用该算法,研究了HUST-2号滑翔机重浮力差、喷泵推力、初始俯仰角和机翼安装位置对滑翔速度及滑翔速度水平分量的影响,分析了滑翔机垂直剖面内定常滑翔时滑翔角的取值范围.结果表明,随着滑翔机重浮力差的增加,滑翔速度逐渐增大,攻角减小,俯仰角的绝对值增大.喷泵推力可有效提升滑翔机的滑翔速度.初始俯仰角及机翼的安装位置对滑翔速度有较大影响,对每一个重浮力差,都存在着一个最佳初始俯仰角使得滑翔速度水平分量达到最大值.机翼位置靠后安装能获得更大的滑翔速度.要减小滑翔机滑翔角的绝对值,须增加滑翔机的升阻比.To understand the steady motion performance of the underwater glider with a jet pump in vertical plane, the steady motion equations in vertical plane were established by simplifying the 6-de- gree of freedom motions equation of the glider. The iterative algorithm was presented. The influence of the difference between gravity and buoyancy, jet pump thrust, initial pitching angle and the posi- tion of the wings on the HUST-2 glider＇s velocity and horizontal velocity were studied by using the al- gorithm. The scope of the gliding angle was analyzed when the glider travelling steadily in vertical plane. The simulation results show that the gliderrs velocity and absolute value of pitching angle in- creases and attack angle decreases with the difference between gravity and buoyancy increasing. It also indicates that the pump thrust can improve the gliderrs velocities effectively. The gliderrs velocity is largely affected by initial pitching angle of the glider and the position of the wings. It indicates that there is a best initial pitching angle that make glider＇s steady horizontal velocity be reached the maxi- mum for every difference between gravity and buoyancy of the glider. So an appropriate initial pitching angle should be chosen to obtain the maximum horizontal velocity. The larger velocity of the glider can be obtained by mounting the wings later. To decrease the gliding angle, the ratio of the lift to drag of the glider should be increased.

关 键 词：水下滑翔机 滑翔机动力学 自动水下航行器 喷泵 运动特性 垂直面定常运动 

分 类 号：U674.941[交通运输工程—船舶及航道工程] O353.4[交通运输工程—船舶与海洋工程]