HEAT-STRESS COUPLED NONLINEAR ANALYSIS AND LOW CYCLE FATIGUE DAMAGE EVALUATION OF TURBINE ROTORS

doi:10.19666/j.rlfd.2003.07.020

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HEAT-STRESS COUPLED NONLINEAR ANALYSIS AND LOW CYCLE FATIGUE DAMAGE EVALUATION OF TURBINE ROTORS

Thermal Power Generation Issue 7, Pages: 61-64(2003)

更新时间：2025-09-28

- HEAT-STRESS COUPLED NONLINEAR ANALYSIS AND LOW CYCLE FATIGUE DAMAGE EVALUATION OF TURBINE ROTORS
- 作者机构：
  
  1. 浙江大学,浙江,杭州,310027
  2. ,浙江,杭州,310027
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.2003.07.020
  CLC： TK263
- Published：2003
- 稿件说明：
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HEAT-STRESS COUPLED NONLINEAR ANALYSIS AND LOW CYCLE FATIGUE DAMAGE EVALUATION OF TURBINE ROTORS[J]. Thermal Power Generation, 2003, (7): 61-64.
DOI：

HEAT-STRESS COUPLED NONLINEAR ANALYSIS AND LOW CYCLE FATIGUE DAMAGE EVALUATION OF TURBINE ROTORS[J]. Thermal Power Generation, 2003, (7): 61-64. DOI： 10.19666/j.rlfd.2003.07.020.

摘要

通过对国产 30 0MW调峰汽轮机组转子在典型工况下起动过程中热力耦合场进行非线性数值分析和模拟计算

得出该机组起动过程中转子的应力和温度场分布

并运用连续损伤模型对汽轮机转子进行了低周疲劳损伤分析。考虑到多轴应力的影响

得出转子的损伤演化方程

评估了转子的剩余寿命。为汽轮机组的在线监测和寿命管理提供了一定的理论依据及可供工程应用的运行建议

Abstract

Through nonlinear numerical analysis and simulated calculation of the heat-stress coupled field for home-made 300MW peak-reguling steam turbine’s rotor under typical starting-up operation

the stress and temperature fields’ distribution on the rotor of said steam turbine during the course of starting-up has been obtained

and the low cycle fatigue damage of the said turbine having been analysed by using continuous damage model. Taking the effects of muti-axial stress into account

the damage evolvement equation has been obtained

and the residual service-life of the said rotor being evaluated

providing a certain theoritical basis for the on-line monitoring and service-life management of steam turbine unit

and an operational proposal for its application in engineering.

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