Low Cycle Fatigue Life prediction of a 300MW Steam Turbine Rotor using a New nonlinear Accumulation Approach

摘要：

A new nonlinear model is proposed to assess the low cycle fatigue life of a steam turbine rotor . Temperature field and stress field of a 300MW steam turbine under normal sliding parameters stop is computed using Finite element analysis. For the reason considering the cyclic stress-strain relation , the new model shows a conservative character . The result is compared with that from the linear accumulation theory . The comparison shows that this new nonlinear model describes the damage accumulation more precisely and reasonably in engineering .

关键词： low cycle fatigue continuum damage mechanics steam turbine rotor finite element analysis

作者: Yong-jian Sun Li-sheng Hu

作者单位: Department of Automation, Shanghai Jiao Tong University, and Key Laboratory of System ControlAnd Inf Department of Automation, Shanghai Jiao Tong University, and Key Laboratory of System Control And In

会议类型: 国际会议

会议名称: The 24th Chinese Control and Decision Conference (第24届中国控制与决策学术年会 2012 CCDC)

会议地点: 太原

会议语种:英文

页码: 3930-3935

在线出版日期: 2012-05-23（万方平台首次上网日期，不代表论文的发表时间）