When considering multiple fatigue conditions at the same time, the setting order of fatigue conditions must be consistent with the setting order of transfer functions, that is, a fatigue condition should select the corresponding transfer function, and the fatigue condition number should be entered in sequence according to the position (such as 1, 2, 3), and cannot be disrupted. Otherwise, unpredictable errors will occur.

As shown in the figure below, the transfer functions in each direction are considered through the same seainp file: in seainp.inp, the transfer function calculations of 0, 45, and 90 degrees are set to be considered in sequence. At this time, the 0-degree direction must be set as the first condition and placed in the first position in the ftginp file, the 45-degree direction must be set as the second condition and placed in the second position, and the 90-degree direction condition is the last.

Transfer function condition order in seainp:

Fatigue condition order in ftginp file:

As shown in the figure below, when considering the generation of transfer functions in different directions through different seainp files, the order of fatigue conditions in the ftginp file must be consistent with the order of the transfer function seainp file and csf file. 0 degrees is placed first as condition 1, 45 degrees is placed second as condition 2, and 90 degrees is placed second as condition 3.