Qing Dong1, *, Bin He1, Gening Xu1
CMES-Computer Modeling in Engineering & Sciences, Vol.122, No.2, pp. 525-553, 2020, DOI: 10.32604/cmes.2020.08498
Abstract To compensate for the shortcomings of quasi-static law in anti-fatigue analysis
of foundry crane metal structures, the fatigue life evaluation method of foundry crane
metal structure considering load dynamic response and crack closure effect is proposed.
In line with the theory of mechanical vibration, a dynamic model of crane structure
during the working cycle is constructed, and dynamic coefficients under diverse actions
are analysed. Calculation models of the internal force dynamic change process of
dangerous cross-sections and a simulation model of first principal stress-time history are
established by using the steel structure design criteria, which is utilised to extract the… More >
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