发明名称 |
Methods and systems for determining fatigue usage factors for reactor components |
摘要 |
A method for calculating a fatigue usage factor of a component in a nuclear reactor includes determining a flow scaling factor for each stress component of a stress cycle, applying the flow scaling factor to rapid cycling stress conditions, and performing a fatique evaluation by calculating a fatigue usage factor using the flow scaling factor. The flow scaling factor is a ratio of a temperature fluctuation ratio at a first reactor operating condition divided by a temperature fluctuation ratio at a second reactor operating condition. The temperature fluctuation ratio is defined as a ratio of the metal temperature range over the fluid temperature range.
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申请公布号 |
US6907791(B2) |
申请公布日期 |
2005.06.21 |
申请号 |
US20020280160 |
申请日期 |
2002.10.25 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
CHOE HWANG;BRANLUND BETTY JANE;SRIDHAR BETTADAPUR NARAYANARAO |
分类号 |
G01N3/02;G01N3/32;(IPC1-7):G01N3/00;G01N11/00 |
主分类号 |
G01N3/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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