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Engine performance simulation method

A simulation method and engine technology, applied in the direction of internal combustion engine testing, etc., to achieve easy-to-master results

Inactive Publication Date: 2013-08-28
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

However, this type of mathematical model involves the numerical simulation of very complex flow processes in engine components and is still under development.

Method used

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  • Engine performance simulation method

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Embodiment 1

[0058] Embodiment 1 An engine performance simulation method, which uses the following method to calculate engine design point performance and non-design point performance: simulate the performance of an aeroengine through proper matching of components, specifically according to the main components of the engine in the calculation of the overall performance of the engine Due to the differences in the description methods and complexity of the characteristics, the following mathematical model for engine performance calculation is established: each component of the engine is regarded as a "black box", and the characteristics of each component are given without describing the detailed working conditions inside each component ; Then determine the common working point of the engine according to the common working relationship of each component, and complete the engine performance calculation;

[0059]The basic process is: for any selected engine component, draw the power and the path ...

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Abstract

The invention discloses an engine performance simulation method. The method for calculating the design point performance and non-design point performance of an engine comprises the following steps of simulating the aero-engine performance through part proper matching calculation, namely establishing mathematic models according to the difference of description methods and the difference of complexity for characteristics of main parts of the engine in the calculation of the overall performance of the engine; determining a common working point of the engine according to a common working relationship of the parts and completing the calculation of the engine performance. According to the method, main working conditions of the engine under the atmospheric environment are simulated, and internal state parameters of the engine are provided. Design parameters and related data are provided for related design research units, meanwhile, technical parameters can be provided for production and overhaul service related manufacturers, the actual production is served, and a fault cause is searched and analyzed. The work efficiency for performance calculation of the series engines is greatly improved and the deep development capacity for the series engines is improved.

Description

Technical field: [0001] The invention relates to the technical field of engine performance test simulation, and in particular provides an engine performance simulation method. Background technique: [0002] As is well known, turbojet engines (for example see Figure 7 ) is an important milestone in the development of modern aviation technology. From Figure 1-Figure 6 It can be seen from the changes in the main performance parameters of the aviation gas turbine engine from the 1940s to the present. Since the birth of the turbojet engine for more than half a century, the aviation gas turbine engine has been a thermodynamic machine integrating high technology. Has been significantly improved. The obvious improvement in the performance of aviation gas turbine engines is not only related to the rapid development of test and measurement technology, but also closely related to the development of computer simulation technology. Numerical simulation technology of aviation gas tur...

Claims

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Application Information

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IPC IPC(8): G01M15/05
Inventor 武艺隋冰雪王占学朱哲韩雪
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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