• 제목/요약/키워드: Turbine Roor

검색결과 1건 처리시간 0.015초

발전용 터빈 로우터의 수명예측을 위한 열응력 해석 (Thermal Stress Analysis for Life Prediction of Power Plant Turbine Rotor)

  • 임종순;허승진;이규봉;유영면
    • 대한기계학회논문집
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    • 제14권2호
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    • pp.276-287
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    • 1990
  • In this paper research result of transient thermal stress analysis of power plant turbine rotors for life prediction under severs operating conditions is presented. Galerkin's recurrence scheme is used for numerical solution of discretized FEM equation of transient heat conduction equation. Boundary conditions for the equation and operating conditions are intensively investigated for accurate life prediction of turbine rotors in operation. A computer program for on-site application is developed and tested. Distribution of thermal stress in turbine rotors during various operating condition is analyzed with the program and it is found that the peak thermal stress appears during cold stage conditions at the first stage of high pressure rotors.