Military turbofan engine mechanical system complete machine tester
A turbofan engine and mechanical system technology, applied in gas turbine engine testing, engine testing, jet engine testing, etc., can solve problems such as inseparable from high-fidelity simulation, difficult to apply verification requirements, and lack of
Active Publication Date: 2021-08-27
中国人民解放军93208部队
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Problems solved by technology
[0005] Generally speaking, the maturity of engine health monitoring technology is inseparable from the high-fidelity simulation of typical engine-related environments. The current component-level tester is mainly used to support component design verification or component performance, strength or life test assessment. The service environment simulation ability is weak, especially for the main bearing, etc., it does not have the ability to simulate the service conditions such as the complex vibration transmission path, support relationship and complete real lubrication system working conditions of the main bearing of the engine, and it is difficult to support the monitoring of lubricating debris and high-frequency Application verification requirements for key technologies such as vibration monitoring
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Embodiment Construction
[0064] 1. Modification of the main engine
[0065] (1) Low pressure rotor drive interface
[0066] The low-voltage rotor is driven by a high-power motor and gear speed-up box, and the power transmission path is high-power motor→speed-up box→transmission flexible shaft→tail handle→adapter→low-voltage rotor front journal.
[0067] The engine needs to be modified as follows:
[0068] 1) Remove the fairing, the front fulcrum oil return pump and its drive shaft, and reform the front fulcrum lubricating oil supply nozzle, and use the low-pressure rotor front journal as the low-pressure rotor power input interface, such as figure 2 shown;
[0069] 2) if image 3 As shown, design and process the adapter to connect the front journal of the low-pressure rotor and the gear of the attached casing;
[0070] 3) The gear of the attached casing is cut off and 8 bolt holes are processed, and the bolt holes are matched with the 8 bolt holes of the adapter;
[0071] 4) Design and manufactur...
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The invention relates to a military turbofan engine mechanical system complete machine tester which constructs a mechanical system complete machine level simulation service environment through adaptive transformation of a typical military turbofan engine in active service. The service condition and environment of mechanical system components and systems such as a main bearing, a transmission gear, a bearing and a lubricating system and the axial load of the main bearing are simulated more truly, and the failure law research of typical faults such as a key bearing / gear of the mechanical system and the lubricating system, the weak fault signal transmission and characterization of a main bearing, a transmission casing bearing and the like under a complex vibration transmission path in a service environment, the state monitoring and failure early warning technology research of mechanical system key component / system faults, and the traction engine health monitoring technology development and landing application are supported, and the use safety of military aviation equipment is guaranteed.
Description
technical field [0001] The invention relates to a complete machine tester for a military turbofan engine mechanical system, which can more realistically simulate the service conditions and environments of mechanical system components and systems such as main bearings, transmission gears and bearings, and lubrication systems, as well as the axial direction of the main bearings. The load provides key support for improving the health diagnosis capability of military aeroengine mechanical systems. Background technique [0002] The mechanical system of aero-engine is recognized as a system with frequent failures of military aero-engines at home and abroad, especially the failure of bearings is one of the leading causes of engine mechanical reasons for air parking and single-engine aircraft-level accidents. The power plant of our army's three-generation main combat aircraft, the sudden failure of the five-pivot main bearing (intermediate bearing) and other major failures are promi...
Claims
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Patent Timeline
Login to View More IPC IPC(8): G01M15/14G01M15/02G01M13/04G01M13/021G01M13/02G01M13/00
CPCG01M15/14G01M15/02G01M13/021G01M13/04G01M13/02G01M13/00
Inventor 尉询楷赵雪红何秀然周磊张生良杨立冯悦鲁旭红
Owner 中国人民解放军93208部队