【作者】 易文俊； 张木； 陈志华； 谭俊杰；

【Author】 YI Wen-jun,ZHANG Mu,CHENZhi-hua,TAN Jun-jie (National Key Laboratory of Transient Physics,Nanjng University of Science & Technology, Nanjing,210094,China)

【机构】 南京理工大学瞬态物理国家重点实验室；

【摘要】 水下高速航行体的运动速度及变化规律是衡量其水动力特性和弹道特性的重要指标,也是研究其超空泡形成与减阻特性的重要参量。针对已往线圈靶测速方案、光幕靶测速方案等存在测速精度低、可靠性差等问题,综合考虑高速航行体水下运动存在干扰因素多、环境压力变化大、测速靶难于完全密封等因素,基于定距测时法,采用接触性区截装置锡箔靶和嵌入式微处理器硬件系统研制了适应水下环境的锡箔靶测速系统。通过航行体水下航行试验验证,研制的测速系统可以测量水下超空泡航行体的航行速度、航行坐标和姿态,为进一步研究水下超空泡航行体的水动力特性和运动特性提供了试验手段。更多还原

【Abstract】 The velocity and its variation of a underwater high-speed vehicle are important guidelines for measuring its hydrodynamic and ballistic characteristics,as well as the important parameters for investigating of its supercavity formation and drag reduction.The coil target measurement,laser screen target measurement and some other methods have the problems of low measurement precision and poor reliability.In this paper,with the comprehensive consideration of the disturbance effects of a moving supercavity vehicle,rapid variation of environment pressure,and difficulties in sealing of the velocity measurement range etc.,a test method was adopted with the use of contact paired position tinfoil target and embedded microprocessor hardware system,based on the fixed distance chronometry.The underwater high-speed vehicle experiments show that,with the use of above method,the moving velocity a underwater high-speed vehicle,its navigation coordinate and pose can be obtained,which can provide a feasible testing method for the further researches on underwater high-speed vehicle.更多还原