Virtual Test Modeling Method of Environment Control System in Aircraft

With the continuous development of aircraft environmental control system technology, the system architecture and its working environment are becoming more and more complex, and the importance of ground environment simulation test is increasingly prominent. In the world, no matter in the military or civil field, simulation analysis and virtual test have become an essential link in the process of system establishment and implementation, and have produced significant benefits. The establishment of an excellent virtual test system plays an important role in improving the theoretical analysis means, system construction pre research, test construction and process analysis, troubleshooting, control system research and construction, and also improves the working efficiency of the whole test task. In the integration verification of aircraft environmental control system and ground environmental simulation system, the complex thermal cycle system is involved, and the operation parameters of each equipment seriously affect each other. It is impossible to accurately understand the actual operation of the system only by using the traditional fixed state point theory. Therefore, it is necessary to use the advanced method based on differential equation to carry out dynamic simulation of environmental simulation test Research.