超超临界汽轮机超高压转子的高温强度研究

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1、上海交通大学硕士学位论文ABSTRACTrule.Comparingtheresultsofthenew-designandthein-servicerotorsfindsthatthedamageofthenew-designrotorisgreaterthanthatofthein-servicerotor.Optimizationontheoriginalstartupphaseisputforwardtoimprovethefatiguelife,andfourcasesaregiveni

2、nthepresentthesis.Thedamageoffourcasesiscalculatedtocomparetheresultsbasedontheoriginalstartupphase,andtheoptimalcaseispresented.Finally,continuumdamagemechanicsisappliedtostudythecreep-fatiguedamagebehavior.PythonbasedcodeisusedinABAQUStocalculatedth

3、eCDMresultsandevaluatethelifetime.KEYWORDS:steamturbinerotor,FEA,creep,fatigue,startupandshutdown,performanceimprovementIV万方数据上海交通大学硕士学位论文目录目录摘要···········································································································

4、·········································IABSTRACT······································································································································III目录······························································

5、······················································································V第一章绪论·······································································································································11.1研究背景和意义·············

6、·········································································································11.2汽轮机高压转子工作环境······································································································11.3超高压转子高温强度研究现状············

7、··················································································21.3.1高温蠕变强度问题研究···································································································21.3.2高温疲劳强度问题研究······································

8、·····························································31.3.3连续性损伤力学研究·······································································································41.3.4超高压转子启动性能优化问题研究···········································