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Method of analyzing structural reliability of aeroengine turbine disc

An aero-engine and analysis method technology, applied in image data processing, special data processing applications, instruments, etc., can solve the problems of high cost and low efficiency, and achieve the effects of ensuring accuracy, high computing efficiency, and improving computing efficiency

Inactive Publication Date: 2017-06-13
XIAN TECHNOLOGICAL UNIV
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Problems solved by technology

[0003] The purpose of the present invention is to provide a reliability analysis method for the turbine disk structure of an aero-engine based on the Monte Carlo method, aiming to solve the problems of low efficiency or high cost in existing methods in the reliability analysis of the turbine disk structure of an aero-engine

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  • Method of analyzing structural reliability of aeroengine turbine disc
  • Method of analyzing structural reliability of aeroengine turbine disc
  • Method of analyzing structural reliability of aeroengine turbine disc

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Embodiment Construction

[0045] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0046] The method of the present invention utilizes multiple software platforms of SOLIDWORKS, HPERMESH, ANSYS and MATLAB, organically combines methods such as SOLIDWORKS solid modeling, HPERMESH grid division, ANSYS stress finite element analysis model establishment and MATLAB numerical calculation, analyzes and simulates the turbine disk The actual stress situation, and considering the random variables such as the density, elastic modulus, ultimate strength and angular velocity of the turbine disk, conduct Monte Carlo analysis for 5000-50000000 times, so that the reliability analysis results of the turbine disk structure h...

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Abstract

The invention discloses a method of analyzing structural reliability of an aeroengine turbine disc; a random variable mathematical model is established according to non-uniformity of turbine disc material, and a stress analysis model is established according to stress condition; PDS (probabilistic design system) in ANSYS environment is used to perform Monte Carlo sampling on random variables of a turbine disc three-dimensional model to obtain maximum stress MAXSTRESS distribution of the turbine disc under different conditions; Monte Carlo simulation tests of different levels are performed on the random variables on MATLAB (matrix laboratory) platform, and reliability of the turbine disc is calculated according to structural functions to obtain the structural reliability of the turbine disc under different conditions; sensitivity of the random variables influencing the structural reliability of the turbine disc is calculated according to sensitivity equation. The method has the advantages of high convergence speed, low cost and high precision, and theoretical basis is provided for the optimal design and reliability management for a turbine disc.

Description

technical field [0001] The invention relates to the technical field of rainwater collection and purification in sponge cities, in particular to a rapid design method for road biological retention tanks. Background technique [0002] The turbine disc is one of the important disc-shaped parts in the aero-engine, and its function is to convert part of the internal energy of the gas into mechanical energy by expanding in the turbine to drive the compressor to rotate. In the actual operation of the aircraft, the turbine disk is subjected to high temperature, high pressure and gas corrosion and oxidation, and its working conditions are very harsh. Therefore, the requirements for the material of the turbine disk in the design of the aeroengine are more stringent. The reliability of the turbine disk has a direct impact on the reliable and stable operation of the entire aero-engine and aircraft, so the reliability analysis of the turbine disk is a subject that needs continuous explor...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06T17/30
CPCG06F30/17G06F30/23G06T17/30
Inventor 丁锋贾川韩帅刘聪
Owner XIAN TECHNOLOGICAL UNIV
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