FATIGUE STATE ANALYSIS DEVICE AND FATIGUE STATE ANALYSIS PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a fatigue state analysis device and fatigue state analysis program, capable of quantitatively evaluating and controlling the fatigue life in consideration of the wear of a measured object.;SOLUTION: A strain amplitude/average strain extraction section extracts strain amplitude and average strain from a strain waveform in S300, and an equivalent stress arithmetic section calculates an equivalent stress, based on the strain amplitude and average strain in S400. An equivalent S-N curve is read in S500, and an accumulated fatigue damage degree arithmetic section calculates an accumulated fatigue damage degree, based on the equivalent S-N curve and equivalent stress in S600. A fatigue state determining section determines the fatigue state of a trolley wire in S700. As a result, the fatigue state of the trolley wire can be analyzed, in consideration of an average strain included in a working waveform of the trolley wire, for example, so that the fatigue life can be quantitatively evaluated and managed in consideration of the wear of the trolley wire.;COPYRIGHT: (C)2007,JPO&INPIT