Development Of Simulation Platform For Integrated Electro-mechanical System Based On IMA

The functions of electro-mechanical system of civil aircraft are complex and requirement of saftyis very high, so it is a trend of development to control electro-mechanical system through integratedmanagement technology. This thesis combines typical electro-mechanical subsystems and has aresearch on theory of integrated electro-mechanical control and development of simulation platform.Analysing the structure, function, data transmission principle of IMA platform, schedule strategy ofoperating system in it and the hosted function of electro-mechanical systems in the IMA platform.Meanwhile, discussing schedulability of task in IMA platform. Based on the above analysing,developing simulation platform through simulink and visual c++6.0.In the analysing of IMA platform, illustrating structure, function of IMA platform. And thenanalysing space, time partition and task scheduling function accomplished by operating system of theplatform. At last, establishing function model of IMA platform.In the analysing of hosted function of electro-mechanical system in IMA platform, I establishsome important model of main and auxiliary hydraulic system function, pressure displaying function,energy conversion function, shut off valve function, fuel system control function, fuel measuringfunction, water and waste water control function and so on.In the analysing of task sets schedulability of real-time operating system in IMA platform,analysing interruption time and priority inversion of electro-mechanical system tasks via RMscheduling algorithm and its extending. It is of great significant to arrange task priority, deadline andsome key attributes reasonably, likewise to take advatage of shared resource for schedulability of tasksets.In the development of simulation platform, technologies like ActiveX widget, multithreading,shared memory management among processes and S function are applied. On the other hand,validating safty of hosted function and hardware in the platform via reasonable fault injections. At last,handling communication problem between computers based on TCP, and then testing andaccomplishing the simulation platform.