基于弹塑性理论的燃机转子寿命分析

基于弹塑性理论的燃机转子寿命分析
摘要：深圳南天电厂用于联合循环的13E2型燃气轮机出现压气机转子裂纹事故，为准确预测同类机组的疲劳寿命，基于弹塑性理论，考虑温度场与离心力对燃机压气机转子疲劳寿命的影响，建立该型燃气轮机压气机转子的有限元热-固耦合数值仿真模型。基于低周疲劳理论，计算该燃气轮机压气机转子的疲劳寿命寿命为5333次，该燃气轮机压气机转子在电厂的实际疲劳寿命为4435次，计算误差在20%以内。利用该方法可以较准确地估算燃气轮机转子的寿命。

Abstract:A compressor rotor crack accident occurred in 13E2 gas turbine used for combined cycle in Shenzhen Nantian Power Plant. To accurately predict the fatigue life of similar units, based on elastic-plastic theory, considering the influence of temperature field and centrifugal force on fatigue life of compressor compressor rotor, the finite element thermo-solid coupling numerical simulation model of the compressor rotor of the gas turbine was established. Based on the low cycle fatigue theory, it is calculated that the fatigue life of the gas turbine compressor rotor is 5333 times, and the actual fatigue life of the compressor rotor of the gas turbine in the power plant is 4435 times. The calculation error is within 20%. This method can be used to estimate the rotor life of gas turbine accurately.

标题：基于弹塑性理论的燃机转子寿命分析
title:Analysis on Gas Turbine Rotor Life Based on Elastoplastic Theory

作者：丁继伟,李岩
authors:Jiwei DING,Yan LI

关键词：燃机,转子,低周疲劳,数值仿真,
keywords:turbine,rotor,low cycle fatigue,numerical simulation,

发表日期：2020-04-30

2025-1-21 00:18 上传 基于弹塑性理论的燃机转子寿命分析.pdf

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