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add min max for load class boundaries #22

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sfreund-DLR opened this issue Nov 16, 2023 · 1 comment
Closed

add min max for load class boundaries #22

sfreund-DLR opened this issue Nov 16, 2023 · 1 comment

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@sfreund-DLR
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when calculating some fatigue characteristics of a load set using fatpack.rainflow and one wants to calculcate intermediate steps using just a slice of the load set, then the load class boundaries vary. This is due to the absolute min/max values might not be in the slice of the given load set. Example:

Figure_1

The unsteady steps at approx 2.5E7 and 4.8E7 result from a shift in the values of ymin or ymax in fatpack.rainflow.get_load_class_boundaries().

Thus, ymin and ymax are introduced as optional parameters. Result:

Figure_2
sfreund-DLR added a commit to sfreund-DLR/fatpack that referenced this issue Nov 16, 2023
@sfreund-DLR
Gunnstein#22 avoiding unsteady effects when checking a slice of a loa…
7932d81 
…d data set as described in Gunnstein#22.

- Including test case
- bugfix in get_load_class_boundaries() unsing k+1 instead of k+2
@sfreund-DLR sfreund-DLR mentioned this issue Nov 16, 2023
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Gunnstein added a commit that referenced this issue Nov 30, 2023
@Gunnstein
Merge pull request #23 from sfreund-DLR/master
8ed283d 
#22 avoiding unsteady effects when checking a slice of a load data se…
@Gunnstein
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Thank you for implementing this, merged!

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@Gunnstein @sfreund-DLR