超空泡水下航行器空间运动建模与弹道仿真  

Kinematic Modeling and Trajectory Simulation for Underwater Supercavitating Vehicles

作　　者：李代金[1] 罗凯[1] 党建军[1] 王育才[1] 张宇文[1] 

机构地区：[1]西北工业大学航海学院,陕西西安710072

出　　处：《兵工学报》2012年第8期956-961,共6页Acta Armamentarii

摘　　要：在包含超空泡"时间延迟"效应的基础上,建立了超空泡水下航行器空间运动模型。模型中体现了机动条件下空泡中轴线相对航行器中轴线的偏移产生的流体动力及力矩。为考察该模型在强机动条件下的准确性,进行了弹道仿真分析。结果表明所建立的模型能够描述航行器机动运动的特性;同时表明在实施极限操舵模式时,舵角极限量是影响姿态角对舵角振荡特性的关键因素。该结论对超空泡水下航行器控制技术研究具有重要意义。Considered time-delay effects, the kinetic model of supercavitating vehicles was established, and the dynamic forces and moments caused by the deviation of the vehicle＇s body axis from supercavity axis under maneuver conditions were contained in it. To verify the veracity of the model under the strong maneuvering condition, a trajectory simulation was carried out. The results show that the motion charac- teristics of the strong maneuvering vehicles can be well described by the model; under the up-and-down rudder control mode, the limited rudder angle is an important factor to influence the oscillation of rudder angle.

关 键 词：液体力学 超空泡水下航行器 空泡时间延迟 空间运动模型 弹道仿真 

分 类 号：N945.13[自然科学总论—系统科学]