| The test of intensity of breaking is necessary for the R&D of helicopter, howeverelectrohydraulic servocontrol system is indispensable to it. The paper mainlyintroduces the design of the digital multi-channels coordinating servocontrol systemthat be used for helicopter fatigue and static test; Solved some problems come withanalog servocontrol system.In order to improve the reliability and maneuverability, the system was divided intothree grades, It is the embodiment of the thinking that centralize management anddecentralization control. There are valve dither and valve set-point circuit to improvethe performance of the system.We designed a fuzzy-PID controller to improve the adaptive abilities and boostcontrol precision of the system. And given the result of simulation.The software running in PC was programmed with VC++6.0,It is a interface that takecharge the test management N control and save the test data, and exchange middle testdata with the PC/104 by Ethernet.After finished the installation and debugging of the system, it was use for the fatiguetest of center plate of rotor systems theorical moke-up main hub, based upon the resultof the test, the system was considered that have good reliability and high controlprecision. |
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