Proceedings of the KSME Conference (대한기계학회:학술대회논문집)
- 2001.11a
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- Pages.272-277
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- 2001
A Evaluation of P-S-N Curve of Low Pressure Steam Turbine Blade Steel
저압 증기 터빈블레이드 강의 P-S-N 선도 평가
- Published : 2001.11.01
Abstract
In order to evaluate variation of fatigue data of the LP steam turbine blade steel, it is important to estimate P - S - N curves to accurately define the probability distributions. In this study, new procedure is introduced to determine the expression of P - S - N curves. For this purpose, 3-parameter Weibull distribution was found to be most appropriate among assumed distributions when the probability distributions of the fatigue life were examined by the proposed analysis. Furthermore, parameter estimation for P - S - N curves was performed using various optimization to maximize the correlation coefficient. As a result of this, sequential linear programing method is used for estimation of P - S - N curves.
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