Design and Application of Automated Testing System for Aircraft Engine HMU Based on SCADA
The hydro mechanical unit(HMU)of aircraft engines are a key unit in engine fuel control systems.Its main functions are to pressurize,meter and servo operations,provide fuel to engines according to the input requirements of engine electronic control-lers,and ensure the best performance of engines.In order to ensure the high efficiency,precision testing and delivery of products,it is necessary to design an intelligent test system delivery platform to eliminate the impacts of human subjective factors on products.Aimed at the network deployment and technical architecture of the entire system,it upgrades and configures from the aspects of hard-ware and software,edits the algorithm program based on Lab VIEW software,and innovatively communicates with the supervisory control and data acquisition(SCADA)system to realize the automated testing function.At the same time,the automatic point-finding method of dichotomy is used to generate automatic delivery reports.It verifies the scientific feasibility of the design through the actual product applications,and meets the goals of the centralized control,automated testing and delivery,which has an important engineer-ing significance.
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