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Generator rotor of crack propagation prediction system and the operating conditions decision support system, method and program as well as the operation control system,
Generator rotor of crack propagation prediction system and the operating conditions decision support system, method and program as well as the operation control system,
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机译:裂纹扩展预测系统的发电机转子及工况决策支持系统,方法和程序以及工控系统,
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摘要
PROBLEM TO BE SOLVED: To control crack development by predicting precisely the crack development in a shaft dovetail or by determining an operation condition capable of precluding a crack from developing.;SOLUTION: A crack development prediction system 1 is constituted of a computing part 10, an interface part 20, and a storage part 30 or the like. The computing part 10 includes a stress calculation part 11 for calculating an average stress generated in the shaft dovetail, a coefficient range calculation part 12 for calculating an stress expansion coefficient range of the crack generated in the shaft dovetail, and a crack development amount calculation part 13 for calculating a crack development amount of the shaft dovetail in an optional time, based on the obtained average stress and stress expansion coefficient range, an operation pattern, an operation time and a data as to the crack. The stress calculation part 11 has a contact bearing stress calculation part 111 as an individual calculation part for calculating individually a different kind of average stress, a thermal stress calculation part 112, a residual stress calculation part 113, and an average stress calculation part 114 for totalizing the average stresses.;COPYRIGHT: (C)2007,JPO&INPIT
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