Dynamic mode conversion verification method based on variable cycle engine core engine platform
A variable cycle engine, dynamic mode technology, applied in engine testing, jet engine testing, gas turbine engine testing, etc., can solve the problems of high risk, difficult test, complex control law design, etc., to achieve the effect of reducing risk
Active Publication Date: 2022-05-13
AECC SICHUAN GAS TURBINE RES INST
View PDF15 Cites 3 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[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
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0034] Embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.
[0035] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and embodiments, and the technical solution of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0036] Such as figure 1 as shown, figure 1 It is a schematic diagram of the variable cycle engine structure, which involves the mode selection valve (MSV) 1-1,...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a dynamic mode conversion verification method based on a variable cycle engine core engine platform. The dynamic mode conversion verification method comprises the steps that hardware conditions for dynamic mode conversion verification are determined on a variable cycle engine core engine; building a dynamic mode conversion verification platform; performing simulation analysis on the steady-state working performance of the core engine in different working modes; test conditions are determined, and different working mode steady state control rules meeting the dynamic mode conversion requirements are formulated; performing dynamic mode conversion simulation analysis; optimizing a mode conversion process control rule by taking the minimum state fluctuation of the core machine as a benchmark; and formulating a verification scheme of the dynamic mode conversion technology on the core machine. According to the verification method, the dynamic adjustment characteristics of the mode selection valve, the CDFS guide vane angle and the FVABI are obtained, and the purpose of reducing the variable cycle engine dynamic mode conversion test risk is achieved.
Description
technical field [0001] The invention relates to the overall design and test technology of an aero-engine, in particular to a dynamic mode conversion verification method based on a core machine platform of a variable-cycle engine. Background technique [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. In particular, the dynamic adjustment characteristics of the mode selection valve, CDFS guide vane angle, and FVABI have the most direct impact on the stable operation of t...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
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