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兵工学报 ›› 2018, Vol. 39 ›› Issue (9): 1780-1785.doi: 10.3969/j.issn.1000-1093.2018.09.015

• 论文 • 上一篇    下一篇

预置舵角下超空泡航行体倾斜入水弹道特性研究

陈诚, 袁绪龙, 邢晓琳, 党建军   

  1. (西北工业大学 航海学院, 陕西 西安 710072)
  • 收稿日期:2018-01-17 修回日期:2018-01-17 上线日期:2018-10-25
  • 作者简介:陈诚(1990—),男,博士研究生。E-mail:chencheng1990@mail.nwpu.edu.cn
  • 基金资助:
    装备预先研究基金项目(9140A13050215HK03015)

Research on the Trajectory Characteristics of Supercavitating Vehicle Obliquely Entering into Water at Preset Rudder Angle

CHEN Cheng, YUAN Xu-long, XING Xiao-lin, DANG Jian-jun   

  1. (School of Marine Science and Technology, Northwestern Polytechnical University, Xi'an 710072, Shaanxi, China)
  • Received:2018-01-17 Revised:2018-01-17 Online:2018-10-25

摘要: 为了研究预置舵角下超空泡航行体倾斜入水弹道特性,开展了入水角为20°时的试验研究。超空泡航行体由空气炮加速获得入水初速度,采用高速摄像机记录入水空泡流型,同时由内测系统记录航行体的运动参数和尾部压力变化。对预置舵角为0°和20°时的试验结果进行对比分析,给出了预置舵角下航行体倾斜入水弹道特性,并进一步研究了不同预置舵角对弹道的影响。试验结果表明:预置舵角为0°时航行体以超空泡状态沿直线运动;预置舵角为20°时出现显著的尾拍现象,轴向力和法向力增大,弹道特征体现为偏向水面弯曲,航行体最终以双空泡状态航行,弹道偏转趋势提升;增大预置舵角有助于增强航行体的弹道偏转能力。

关键词: 超空泡航行体, 预置舵角, 入水试验, 弹道, 尾拍

Abstract: A series of experiments of supercavitating vehicle at the entry angle of 20° are carried out to investigate the trajectory characteristics of supercavitating vehicle at preset rudder angle during oblique water-entry. An air cannon is set up to provide the initial velocity of supercavitating vehicle. The flow pattern in water-entry cavity is captured by using a high-speed video camera, and the variations of the motion parameters and tail pressure are recorded by using a built-in measuring system. The experimental results of supercavitating vehicle navigating at the preset rudder angles of 0° and 20° are analyzed in detail, and the water-entry trajectory characteristics of supercavitating vehicle are given. The influences of different preset rudder angles on the trajectory are further studied. The experimental results show that the vehicle moves along a straight line in a supercavitation state when the preset rudder angle is 0°; a remarkable tail-slapping phenomenon arises, and the axial force and the normal force increase when the preset rudder angle is 20°, thus causing the trajectory to bend to the surface of the water. The vehicle eventually navigates in the state of double-cavity, with enhancing the trajectory deflection. Increasing the preset rudder angle can improve the deflection ability of the vehicle. Key

Key words: supercavitatingvehicle, presetrudderangle, water-entryexperiment, trajectory, tail-slapping

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