摘要
基于有限元弹塑性方法对某压缩空气储能透平高压内缸进行了低周疲劳分析,为了得到更加合理、精确的瞬态温度场,采用了三维流体计算得到内缸的对流换热系数,进行了瞬态温度场的计算,在冷态启动和热态启动两种工况下进行了内缸的低周疲劳分析,得到了内缸在循环温度场和压力场下的塑性应变,根据材料的应变与疲劳寿命关系评估了高压内缸的低周疲劳寿命,为透平机组的安全运行提供了重要的理论依据。
This paper conducts a low-cycle fatigue analysis of the high-pressure inner cylinder of a compressed air energy storage turbine using the finite element plasticity method.In order to obtain a more reasonable and accurate transient temperature field,the convective heat transfer coefficient of the inner cylinder was obtained by three-dimensional fluid calculation,and the transient temperature field was calculated.Low-cycle fatigue analyses were conducted on the inner cylinder in cold and hot startup conditions,and the plastic strain of the inner cylinder was obtained under the cyclic temperature and pressure fields.The low-cycle fatigue life of the high-pressure inner cylinder was evaluated based on the relationship between strain and fatigue life of the material,providing important theoretical basis for the safe operation of the turbine unit.
作者
马义良
宋业琛
田硕
刘洋
关淳
余海鹏
邢冠一
MA Yi-liang;SONG Ye-chen;TIAN Shuo;LIU Yang;GUAN Chun;YU Hai-peng;XING Guan-yi(Harbin Turbine Company Limited,Harbin 150046,China;Shanghai Institute of Space Propulsion,Shanghai 201112,China)
出处
《汽轮机技术》
北大核心
2025年第3期193-196,202,共5页
Turbine Technology
关键词
空气储能透平
对流换热系数
弹塑性
低周疲劳
air-storage turbine
convective heat transfer coefficient
elastic-plastic
low-cycle fatigue
作者简介
马义良(1983-),男,高级工程师。主要从事透平部件强度与振动安全性分析。
