舰载蒸汽弹射系统建模与仿真研究

Modeling and Simulation Research on Naval Steam-power Aircraft Launch System

针对舰用蒸汽弹射器的基本工作原理,在一定的假设条件下建立其动态仿真数学模型.通过模型对舰用蒸汽弹射系统的动力学和热力过程特性进行了研究,给出了其在各种运行工况下的仿真结果,并进行了仿真试验,得到了不同条件下活塞速度、加速度、位移以及汽缸压力的变化规律;分析了漏汽对弹射系统的影响,获得了不同漏汽情况下弹射末速度和过载的变化.

A dynamic mathematic model of a naval steam-power aircraft launch system is established on the basic elements of steam-power catapult in this paper. Using this model to study the dynamics and thermal process feature of real object, and the simulative results under different running stations and the corresponding analyses are also given. We carry out the emulate test in the environment of MINIS software, and get the relationship between piston velocity, acceleration, shoot length and time. The influence of steam leakage is also discussed in this paper, and the end shoot velocity and acceleration under different degree of leakage are gotten. The numerical results provide the optional method and basis for the design and test of the naval catapult in future.