Dynamic mode conversion verification method based on variable cycle engine core engine platform
A variable-cycle engine and dynamic mode technology, applied in engine testing, jet engine testing, gas turbine engine testing, etc., can solve problems such as high risk, complex control law design, and difficult testing, and achieve the effect of reducing risks
Active Publication Date: 2022-07-26
AECC SICHUAN GAS TURBINE RES INST
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[0002] Dynamic mode switching technology is an important technology in variable cycle engines, such as figure 1 As shown, the variable cycle engine structure involves the mode selector valve, core driven fan (CDFS), front variable area ducted injector (FVABI), rear variable area ducted injector (RVABI), low pressure turbine The coordination of the actuation sequence and actuation speed between the geometric adjustment mechanisms such as the guider and the tail nozzle, the design of the control law is complicated, the test is difficult and the risk is high
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[0034] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.
[0035] It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict. The present invention will be described in detail below with reference to the accompanying drawings and the embodiments, and the technical solutions of the present invention will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0036] like figure 1 shown, figure 1 It is a schematic diagram of the engine structure of variable cycle. The engine structure of vari...
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The invention provides a dynamic mode conversion verification method based on a variable cycle engine core machine platform, comprising: determining hardware conditions for dynamic mode conversion verification on the variable cycle engine core machine; building a dynamic mode conversion verification platform; Carry out simulation analysis on the steady-state working performance of the machine; determine the test conditions, formulate the steady-state control laws of different working modes that meet the requirements of dynamic mode conversion; carry out simulation analysis of dynamic mode conversion; carry out the control law of the mode conversion process based on the minimum state fluctuation of the core machine. Optimal; formulate the verification scheme of the dynamic mode conversion technology on the core machine. The verification method of the present invention obtains the dynamic adjustment characteristics of the mode selection valve, the CDFS guide vane angle and the FVABI, and achieves the purpose of reducing the risk of the variable cycle engine dynamic mode conversion test.
Description
technical field [0001] The invention relates to the overall design and test technology of aero-engine, in particular to a dynamic mode conversion verification method based on a variable-cycle engine core engine platform. Background technique [0002] Dynamic mode conversion technology is an important technology in variable cycle engines, such as figure 1 As shown, the variable cycle engine structure involves the mode selector valve, core drive fan (CDFS), front adjustable area bypass injector (FVABI), rear adjustable area bypass injector (RVABI), low pressure turbine The coordination of the actuation sequence and actuation rate among the geometric adjustment mechanisms such as the guide and the tail nozzle is complicated in the design of the control law, and the test is difficult and risky. In particular, the dynamic adjustment characteristics of the mode selection valve, the CDFS guide vane angle, and FVABI have the most direct impact on the stable operation of the fan and...
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IPC IPC(8): G01M15/14G01M15/02
CPCG01M15/14G01M15/02
Inventor 余秋霞王永明陈佳李美金关朝斌王为丽谷彬邓燃赵龙波
Owner AECC SICHUAN GAS TURBINE RES INST