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Modeling simulation analysis method for thermal mechanical systems such as aero-engines

A technology of aero-engine and thermal machinery, applied in special data processing applications, instruments, electrical and digital data processing, etc., can solve problems such as poor practicability, and achieve the effects of good practicability, low modeling complexity, and clear levels

Inactive Publication Date: 2017-05-31
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology

[0011] In order to overcome the shortcomings of poor practicability of the existing methods, the present invention provides a method for modeling and simulating analysis of thermomechanical systems such as aero-engines

Method used

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  • Modeling simulation analysis method for thermal mechanical systems such as aero-engines
  • Modeling simulation analysis method for thermal mechanical systems such as aero-engines
  • Modeling simulation analysis method for thermal mechanical systems such as aero-engines

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Embodiment Construction

[0036] refer to Figure 1-5 . The specific steps of the method for the modeling and simulation analysis of thermomechanical systems such as aero-engines in the present invention are as follows:

[0037] Step 1. First, the overall design requirements of the simulation system are given. According to the design requirements, combined with the characteristics of complex models and cumbersome calculations of the aero-engine itself, the system architecture is divided into four layers: user operation layer, engine component layer, and basic Algorithm layer, signal transfer and input / output layer. Each layer is relatively independent, which is convenient for designers to carry out targeted modification, optimization or expansion according to different simulation goals.

[0038] Step 2. Design its MATLAB / Simulink implementation method according to the functional characteristics of different levels and modules. First, establish the basic algorithm layer, which includes the gas variab...

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Abstract

The invention discloses a modeling simulation analysis method for thermal mechanical systems such as aero-engines. The modeling simulation analysis method is used for solving the technical problem of poor practicality of existing methods. According to the technical scheme, the modeling simulation analysis method has the advantages that the shortcomings of poor readability, maintainability and expansibility of procedure-oriented program design methods can be overcome by the aid of object-oriented modeling processes; the modeling simulation analysis method is based on a universal simulation platform MATLAB / SIMULINK, can bring convenience for designing controllers of the thermal systems such as the aero-engines and has excellent man-machine interaction interfaces; different built functional modules are low in coupling, and accordingly modeling procedures are high in flexibility, expansibility and portability; algorithms for various components and iterative solvers are optimized, so that a high-precision aero-engine model can be built; current mature linear system controller design processes with linear modules can be applied to the aero-engine model, and accordingly the modeling simulation analysis method is good in practicality.

Description

technical field [0001] The invention belongs to the field of modeling and simulation of thermomechanical systems such as aeroengines, and in particular relates to a method for modeling and simulating analysis of thermomechanical systems such as aeroengines. Background technique [0002] An aeroengine is a complex nonlinear aerothermodynamic system composed of multiple rotating parts. The design of the engine not only requires the comprehensive application of knowledge including aerodynamics, solid mechanics, thermodynamics, fluid mechanics, materials, etc. The linear nature dictates the need for extensive experimentation to determine the actual operating characteristics of each component. Using computers to establish mathematical models of engines for research can shorten the development cycle, reduce funding, reduce the number of on-site tests, increase the speed of technology updates, and avoid unnecessary risks. [0003] The United States and other countries first starte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/15G06F30/33
Inventor 缑林峰崔凯史东烨王璐璐黄雪茹
Owner NORTHWESTERN POLYTECHNICAL UNIV
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