To provide a technology for improving reliability of strength analysis of a component wherein a load is applied independently onto a plurality of load points, and a technology for selecting automatically, or allowing a user to select easily, a load condition suitable for the strength analysis of the component from inside time calendar waveform data recording a load applied onto the plurality of points on the component.
This analysis condition determination device includes: a displacement calculation means for acquiring a combination of load values applied onto the plurality of load points at each time from the time calendar waveform data, and calculating displacement of each load point based on the combination of the load values; a virtual stress value calculation means for setting a restraining point on the component, and adding a value determined by dividing the displacement of the load point by the square of a distance from the load point to the restraining point, relative to the plurality of load points, to thereby calculate a virtual stress value at the restraining point; and a load condition determination means for comparing each virtual stress value relative to the combination of load values at each time included in the time calendar waveform data, and determining a combination of load values having a large virtual stress value as a candidate for a load condition used for the strength analysis.
Mayuko Wakuda
Kazunobu Sera
Tsutomu Toyama
Takehiko Sekine
Takeshi Nakamura