Research on Hydraulic Loading Test Technology of Civil Aviation Engine
When the engine is tested on the test bench,it needs to simulate various intermediate states of the engine running on the aircraft.Hydraulic loading test is an important part of the engine test,which simulates the state of the engine driving the hydraulic pump to provide hydraulic power to the aircraft hydraulic system during the working process.In this paper,according to the power extraction test requirements of a certain type of high bypass ratio civil turbofan engine,the demand analysis and hydraulic loading system design are carried out,and the experimental research of engine hydraulic loading power extraction is carried out.In order to extract the ra-ted power and meet the demand of the output hydraulic pressure in the steady state and transition state of the en-gine,a set of hydraulic loading system which can be used in bench test is developed.This paper introduces the system requirements,working principle,structure,control and function design scheme,and verifies the per-formance of the system through the test and debugging.
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