潜射模拟弹筒盖系统柔性支撑降载技术

Flexible support technique for depressing load over cover system of underwater-launched emulating missile

提出了筒盖系统带空行程的柔性支撑降载方案,基于含相变VOF模型和动网格技术并采用三维对称模型对潜射模拟弹筒口压力场及其对筒盖系统的影响特性进行了建模仿真,对比分析了9种不同空行程组合的仿真数据,获取了筒口压力场的气泡脉动特性、筒盖及其支撑环节的受载特性和筒盖的运动规律,验证了带空行程柔性支撑方案的可行性,同时也得到了便于工程实施的行程组合参数。该结果对于指导筒盖系统降载方案的设计和实施具有重要指导意义。

A flexible-support technique with blank travel for depressing load over cover system was brought forward.The fluid field near canister outlet for underwater-aunched emulating missile and its effect on cover system were modeled and simulated using a 3D symmetric model based on dynamic meshing technique and VOF model with phase transformation.The characteristics of bubble pulsation near canister outlet,time-variable load over the cover and its supporting component and dynamics characteristics of cover were achieved through simulation of 9 cases.The results show that flexible-support technique with blank travel for depressing load over cover was feasible.It provided a new kind of reference standard for load-depressing cover system design.