自由射流高空模拟试车台系统建模与仿真研究

介绍了面向对象的系统建模仿真关键技术，分析了其在解决大型复杂系统动态仿真方面的优势。针对自由射流高空台系统，给出了自由射流供气喷管、气动阀门等一些关键仿真元件的建模思路与模型验证情况。在此基础上搭建了简化的自由射流空气原理系统，并利用简化后的模型开展了对马赫数、马赫数/高度过渡态模拟能力的仿真。结果表明，该套系统原理可行，若要实现工程应用，尚有许多控制上的问题需要克服。最后，给出了另外一种工程应用的思路。系统仿真技术对于大型复杂系统动态问题模拟来说是良好的解决方案，该技术需要大量的早期投入和设备试验数据支持。

Modeling and Simulation of Free Jet High Altitude Simulation Test Bed System

The key technologies of object-oriented system modeling and simulation is introduced,and its advantages in solving the dynamic simulation of large complex systems are analyzed.The modeling ideas and model verification of some key simulation components such as free jet air supply nozzle and pneumatic valve are given for the free jet high altitude platform system.On this basis,a simplified free jet air principle system is built,and the simulation ability of Mach number and Mach number/height transition state is carried out by using the simplified model.The results show that the principle of the system is feasible,and many control problems need to be overcome before engineering application.In the end,another idea of engineering application is given.System simulation technology is a good solution for dynamic problem simulation of large complex system,which needs a lot of early investment and equipment test data support.