A test system and method for aeroengine deflation mechanism
An aero-engine and test system technology, which is applied to the field of test systems of aero-engine bleeder mechanisms, can solve the problem of not finding the calculation and test data of a follower rod of a bleed valve, and achieve the effect of clear and feasible test steps and detailed loading process.
Active Publication Date: 2017-08-25
AECC AVIATION POWER CO LTD
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Problems solved by technology
However, after consulting the British data, no calculations, test data, etc. related to the deflation valve follower rod and the deflation valve movement mechanism were found
Investigated relevant domestic institutes, and there were no reference cases for relevant research and verification tests of similar structure deflation mechanisms
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[0031] The present invention is described in further detail below in conjunction with accompanying drawing:
[0032] see figure 1 with figure 2 , the present invention is used for the test system of air deflation mechanism of aero-engine, including servo control system, hydraulic controller and test measuring mechanism. Assemble the test piece to simulate the installation position and installation requirements of the deflation mechanism in the engine. One end of the deflation valve follower rod 7 is installed on the intermediate casing assembly 5, and one end is connected with the deflation valve 13. The hydraulic controller 3 drives the deflation valve follower rod 7 to regulate the opening and closing of the deflation valve.
[0033] Simulate the blockage of the deflation valve and the axial force at the moment when the valve is just opened, adjust the control requirements during the assembly of the deflation mechanism, test the stress level at the junction of the follow...
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The invention discloses a test system and method for an aero-engine deflation mechanism. The test system includes a servo control system, a hydraulic controller and a measuring mechanism; the servo control system is connected with the hydraulic controller, and the deflation valve is driven by the hydraulic controller The follower rod is used to adjust the opening and closing of the deflation valve; one end of the deflation valve follower rod is connected with the deflation valve, and the other end is connected with the intermediary case assembly; the deflation valve is installed outside the deflation main pipe; the deflation main pipe is installed on On the casing of the high-pressure compressor; on the follower rod of the deflation valve, a measuring mechanism is set; on the deflation valve, a loading assembly is set. The invention provides a test method for an aeroengine deflation mechanism. The test procedure is clear and feasible, and the loading process is detailed, which can more realistically simulate the working state of an aero-engine deflation mechanism and apply load to it on the tester. It can be used as a reference for the test of the similar structure of the air-releasing mechanism of the aero-engine.
Description
[0001] 【Technical field】 [0002] The invention belongs to the field of aero-engine testing, and relates to a testing system and method for an aero-engine deflation mechanism. [0003] 【Background technique】 [0004] Since the use of aero-engines, there have been many failures of the follow-up rod of the bleed valve in the bleed mechanism. In severe cases, the aero-engine surge and overheating have occurred, which has affected the completion rate of the combat missions of the troops and caused huge economic losses. . The deflation mechanism is one of the control measures taken to prevent the aero-engine from surging when it works in the low speed range. The deflation valve follower lever drives the deflation valve to open and close through the power provided by the anti-puff actuation cylinder, so as to realize deflation at low speed. According to the conclusion of physical and chemical analysis, the broken follower rod of the deflation valve originates from the transition po...
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IPC IPC(8): G01M15/02
Inventor 杜龙梅蒋学军张瑞玲薛云飞李威吴振宇
Owner AECC AVIATION POWER CO LTD