舵板张开过程的数值仿真与试验研究

采用流固耦合数值计算方法和动网格技术,对一种水下航行体舵板在张开过程中的速度、载荷以及动态响应变化规律开展了研究,对影响舵板张开的尾部高温燃气、水下航行体运动速度等因素进行了分析。在此基础上,根据速度等效原则设计了验证试验方案,试验中获取了舵板张开过程的位移-时间曲线、应力-时间曲线以及舵板张开时间与出水速度的关系。仿真计算结果与试验结果对比表明:该计算结果可为水下航行体的水弹道分析、舵板结构设计和材料选择提供依据。

The Numerical Simulation and Testing in the Spread Process of Rudder

The variation rules of the velocity,load and dynamic response in the spread process of rudder for an underwater vehicle were studied by using computational fluid dynamics method and dynamic mesh techniques,and the factors affecting the spread of rudder such as high temperature combustible gas in the tail of rudder and underwater vehicle motion speed were also analyzed.The proof testing schemes were designed based on the speed equivalent principle and the displacement-time curves and stress-time curves and the relation between the rudder spread time and the exiting water speed in the spread process of rudder were obtained in the tests.It was concluded that the calculation results can provide dependence for the analysis on trajectories of underwater vehicle and rudder structure design and material option.