Aero-engine Dynamic Simulation Test Bed Transformation And Its Control System Design

According to the need of teaching and scientific research, this paper restores and improves the designs of Hardware in the Loop Simulation test-bed of aero-engine rotate speed control system, which is built in the 1970s. The purpose is to restore the function of WP-6 aero-engine's mechanical hydraulic pressure control regulator and to adapt it to WP-7 and WP-13 aero-engine.This paper uses an industrial computer instead of the old analog computer, and realizes auto-control by using sensors instead of manual control and mechanical instruments. The paper mainly improves the design of rotate speed system, fuel oil system and air system and selects the types of the equipments by calculating. Since the rotate speed system is the most important part, the paper discusses it in details and studies its control method by simulation. Finally, the paper designs a test and control system for the Hardware in the Loop Simulation test-bed.In the test and control system, selecting the types of hardware and designing the software are completed. This is a CAT system that uses popular VI technology. Database is used to storage and display data so that data files can be easily managed. Lab VIEW PID Control ToolSet is used to control the rotate speed and pressure, which can make the software more reliable. The test and control system uses modularization so that it can be used in other system. The test-bed controlling, data collecting, processing, displaying and storage are all completed by a computer. Using multithreading manage multi-signals the system can deal with sudden matters in real time. In conclusion, the test and control system greatly improves the automatization of the Hardware in the Loop Simulation test-bed.