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Aircraft engine part modeling method based on control system development platform

An aero-engine and development platform technology, applied in general control systems, control/regulation systems, simulators, etc., can solve problems such as low interaction efficiency and large modeling workload, avoiding repeated modeling processes and simplifying interaction methods. , the effect of improving the efficiency of interaction between departments

Inactive Publication Date: 2015-02-25
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology

[0004] In order to overcome the defects of large modeling workload and low interaction efficiency of the existing control engine model, and avoid potential errors in the modeling process, the present invention proposes an aeroengine component modeling method based on the control system development platform; The dynamic link library technology realizes the method of directly calling the component-level dynamic model under the engine overall performance analysis platform GasTurb under the control system development platform MATLAB, which can avoid the repeated modeling process under the control system development platform and effectively reduce the number of control system developers. workload and the risk of potential errors

Method used

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  • Aircraft engine part modeling method based on control system development platform
  • Aircraft engine part modeling method based on control system development platform
  • Aircraft engine part modeling method based on control system development platform

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Embodiment Construction

[0019] This embodiment is an aeroengine component modeling method based on a control system development platform.

[0020] refer to Figure 1 to Figure 4 , the modeling method of aero-engine components based on the control system development platform, based on GasTurb's Pascal language source code, adding necessary codes, in Del x Create a dynamic link library A with the extension name DLL under the hi platform. The dynamic link library B with the extension name MEXW32 is established in MATLAB with the S-function interface technology of C / C++. Through the call of dynamic link library B to dynamic link library A and the engine model configuration file, the engine component level dynamic model of GasTurb can be directly called in the form of graphical modules in MATLAB / Simulink. Among them, dynamic link library A contains GasTurb engine component level dynamic model calculation functions, but does not contain model parameters; dynamic link library B contains S function main ca...

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Abstract

The invention discloses an aircraft engine part modeling method based on a control system development platform. A dynamic link library A and a dynamic link library B are constructed, data link among the Pascal programming language, the C / C++ programming language and the M programming language is achieved, meanwhile, the general characteristic of height customization is guaranteed, a simple interaction way is provided for transition from aircraft engine overall performance analysis under GasTurb to control system development under MATLAB, overall performance analysis and control system development are linked, and interaction efficiency between departments is improved; according to the method, a part level dynamic model under the engine overall performance analysis platform GasTurb is directly called through the dynamic link library technology under the control system development platform MATLAB, a repeated modeling process under the control system development platform can be avoided, and the aircraft engine part level modeling workload under the control system development platform and the risk that potential errors occur are reduced.

Description

technical field [0001] The invention relates to the field of aero-engine modeling and simulation, in particular to an aero-engine component modeling method based on a control system development platform. Background technique [0002] In the field of overall performance analysis of aeroengines, GasTurb software can perform static / dynamic simulation calculations of various types of engines including turbojets, turbofans, turboshafts, and turboprops. It has a good man-machine interface, excellent simulation accuracy, and complete Supporting auxiliary tools such as compressor / turbine characteristic map processing have been widely used and recognized in this field. In the field of engine control system development, MATLAB and its Simulink modeling and simulation toolkit, Control System control toolkit, Real-time Workshop real-time code conversion toolkit and other supporting tools form a graphical system that can quickly realize control system development and design. simulation ...

Claims

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Application Information

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IPC IPC(8): G05B17/02
Inventor 郭迎清张书刚孙浩
Owner NORTHWESTERN POLYTECHNICAL UNIV
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