Online Monitor System About Thermal Status Of Large Steam Turbine Rotor

AbstractDurillg the steam otine being atd, StOPPed or load changing,it bears high heat StrCsses. Generally take the rOtOr as the controlobject, dedrite boundary condition, solute the temPerabe field ofentire fOtor, and then analySt heat exPansion and diStOrtion as well ashot strCss distribute, tO control the courses, and keeP the unit the mostoptiInUIn oPW condition.l Two dimension model of rotor is the synthetic application inNthermal conduction and engineering mechanics of the finite elementmethod, which belongs to the axial symmetry stress analysis, and usesthe annular unit of triangle section with good boundaiy adaptability. along with development of computer software and hardwaretechnology, it抯 completely possible to develop the online monitoringsystem of two dimension model, which provides more effective andmore directive way for the research groups in courses of peak loadUunit, such as heat expansion difference, thermal fatigue crack, and life?management etc.