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โŒ› Time History โ€‹

A time series is the relationship between the time in the domain, t, and the load factor ฮป applied to the loads of the pattern it is attached to:

ฮป=F(t)

Every Load Pattern needs one. In a static analysis the time is a pseudo-time and the series is usually Constant or Linear; in a transient analysis it is real time and the series carries the actual signal.

Components in this tab โ€‹

ComponentNicknameฮป(t)
ConstantConstant Time SeriesA fixed factor, independent of time.
LinearLinear Time SeriesProportional to time โ€” a ramp.
TrigonometricTrigonometric Time SeriesA sine wave over a time window.
PathPath Time SeriesArbitrary, from lists of times and values.
Read Time SeriesRead Time SeriesA Path series read from a file on disk.

Choosing one โ€‹

The loadUse
Is on for the whole analysis โ€” dead load, permanent equipmentConstant
Should ramp up to avoid a sudden jump in a non-linear runLinear
Is harmonic โ€” machine vibration, an idealised base motionTrigonometric
Follows a recorded or arbitrary signal you already have as numbersPath
Follows a recorded signal that lives in a fileRead Time Series

Every component also outputs a Graph โ€” plug it into a Grasshopper Quick Graph or a chart to see the signal before running anything.