Design of Loading System for Thrust Reverser Ground Simulation Test

2nd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Liu, Chao^1 ; Deng, Junxiang^1 ; Su, Sanmai^2

School of Aircraft Maintenance Engineering, Guangzhou Civil Aviation College, Guangzhou

510000, China^1

School of Power and Energy, Northwestern Polytechnical University, Xi'an

710000, China^2

关键词: Control strategies;    Design of tests;    Frequency characteristic;    Hydraulic actuation systems;    Loading control;    Semi-physical simulations;    Simulation tests;    Thrust reversers;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/170/4/042093/pdf
DOI  :  10.1088/1755-1315/170/4/042093

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Thrust reverser is a necessary device on large passenger plane and large culvert ratio turbofan engine, which has the advantages of shortening the landing distance, reducing the wear of wheel brake, prolonging the service life of braking parts and improving landing safety of aircraft. The thrust reverser ground test is one of the important contents in the design of aircraft nacelle, and generally, it is an effective way to carry out the research test work by semi-physical simulation, in which the analysis of the thrust reverser loading control system are the basis for the design of test loading device. In this paper, take the cascade thrust reverser as the object, firstly, the thrust reverser structure and working principle were specially explained. Then, according the characteristic of the hydraulic actuation system, the loading channel was designed and analyzed theoretically, especially the loading control system. Finally, the model of loading control system was established in Simulink, and the time domain and frequency characteristic were analyzed. For the redundant force in the passive loading system, PID and the principle of the structure invariance were chosen to correct the control system. The simulation results show that the principle of the structure invariance control strategy has a better effect on eliminating the redundant force to meet engineering requirements.