Amplitude as an explicit function of time

Hi,

I would like to request if it would be possible to build an amplitude as a function of time.

Let’s say sin(t) and prepomax create the Amplitude/time table.

Inputs: function , max t , number of points.

It would allow for movable loads and rotating BC.

Regards

Abaqus has the following amplitude types:

Periodic uses the Fourier series. User is for the (V)UAMP subroutine.

1 Like

Equation-based amplitude is definitely missing. But creating moving loads would require the equation to be position-dependent (x, y, z) and time-dependent (t). Then, PrePoMax would generate an individual amplitude for each node. But it would only work for nodal loads and BCs.

Abaqus doesn’t really have a feature that would allow easy modeling of moving loads. One has to use workarounds with amplitudes, subroutines, scripting or even contact with rigid body moving along the structure. As a side note, there is the BRIGADE software which uses Abaqus as a solver, but is meant for bridge design so its features include moving loads, load combinations and so on.

For the most general case scenario yes unless the load is applied to a ref node