Modeling and fault simulation of aircraft bleed system

1、 Content abstract

A little
350- Can communicate 、 consulting 、 Answering question

2、 Content description

stay B737 In the bleed system of an aircraft , The engine bleed and bleed valve are studied , Analyze the function of bleed valve and the phenomena and results caused by normal operation and failure . stay MATLAB The system is simply modeled and simulated in the software , And through the manual and other relevant information to analyze the failure of the bleed valve .

At the beginning of the mission , First, further deepen the study of the air entrainment content in the aircraft environmental control system in the textbook , And consult domestic and foreign literature on aircraft bleed system . Understand the basic structure and working principle of compressor bleed , Bleed valve in compressor bleed system , The bleed valve is analyzed . Analyze the bleed valve under different bleed temperature and bleed pressure , Controlled by the temperature and pressure regulating devices in the system , Realize the temperature, pressure and shutdown of bleed air , Obtain satisfactory bleed .

After mastering relevant theoretical knowledge , Understand and learn MATLAB Software knowledge , By learning the contents of relevant books , Master the method of modeling and simulation . stay B737 Find the relevant sections of the bleed system in the service manual , According to the working principle, the structure diagram is obtained . stay MATLAB Use the structure diagram MATLAB Language to realize the logic control of valve function . Finally, the structure model established by simulation , The data waveforms of the bleed gas supplied to each gas consumption system under different states are obtained . combination B737 Failure cases in the maintenance manual , Simulated fault simulation , Get the fault analysis conclusion .

3、 Simulation analysis

 

4、 Reference paper

Modeling and fault simulation of aircraft bleed system _ Heyongbo .pdf

Research on Modeling and fault mechanism of aircraft bleed system _ Yangyanhui _ Chapter 6 fault simulation of bleed system _51_56.caj