Abstract
Analysis on the performance of the aircraft hydraulic system needs to be extremely accurate, which results in a large amount of calculation and wastes much CPU compute resources. The complex model can only be used for offline simulation and cannot be used in the hardware-in-the-loop environment. This paper introduces some techniques and methods for real-time simplification model of hydraulic system: use active index, energy analysis tool or linear frequency tool to modified the original complex offline model; appropriate order-reduction model based on test data, increased the step size of the model operation under the premise; split complex model into multiple subtasks and processed in parallel to improve the computational power of real-time simulation hardware. Through the real-time simulation tests, the real-time simulation results show that the simplified real-time model can replace the complex offline model of hydraulic system for hardware-in-the-loop platform, engineering simulator, etc.
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