Research on the Trajectory Characteristics of Supercavitating Vehicle at Preset Rudder Angle

doi:10.3969/j.issn.1000-1093.2017.10.013

Abstract

Abstract: The turning maneuver trajectory characteristics of the supercavitating vehicle on the horizontal plane are realized by presetting the rudder angles in the head of supercavitating vehicle， and the free motion of vehicle at the preset rudder angles of 0°, 3°and 6° is investigated in experiment. The experiment is done in a pool. The eveluationary process of cavity is observed by using a high-speed video camera， the motion parameters of vehicle are measured using a built-in measuring device，and the turning maneuver trajectory characteristics of supercavitating vehicle on the horizontal plane at different preset rudder angles are acquired. The experimental results show that the side force of vehicle shows a small fluctuation due to the perturbation of the unsteady factors when the preset rudder angle is 0°， but the average value is basically 0. When the preset rudder angle exists， the axial and side forces increase with the increase in the preset rudder angle. The preset rudder angle can be used to control the horizontal turning maneuver of supercavitating vehicle. The larger the preset rudder angle is， the easier the turning maneuver is， but an overlarge preset rudder angle may cause the trajectory destabilization. Key

Key words: fluidmechanics, supercavitatingvehicle, presetrudderangle, turningmaneuver, trajectory, experimentalstudy

CLC Number:

TJ630.1

SHI Su-guo， WANG Ya-dong， LIU Le-hua， YANG Xiao-guang. Research on the Trajectory Characteristics of Supercavitating Vehicle at Preset Rudder Angle[J]. Acta Armamentarii, 2017, 38(10): 1974-1979.

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第38卷
第10期2017 年10月兵工学报ACTA
ARMAMENTARIIVol.38No.10Oct.2017

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