Abaqus - Moving load

[Men96]

Hello everyone,

My question might be easy but the only answers I found until now are to use Subroutines (DLOAD etc). My question is how to make a concentrated force move along the length of my beam (see attached picture)? Is it possible using appropriate boundary conditions (specifying the velocity)? If yes, how can I choose a force to have a velocity?

My goal is to do that twice, once for a concentrated force and once for a moving point mass, and look at the differences of the results.

Thank you in advance.

 

[Mustaine3]

I see 3 options:
1. Subroutine. Recommended.

2. With the help of contact. Moving another object along the beam, while the object is pushed down. Not recommended.

3. With many loads and amplitudes. Define a load and a corresponding amplitude for each node. Through the amplitudes you can control when what load is active. It's quite some work to define this.

 

[FEA way]

DLOAD subroutine seems like the best option here. Otherwise you can try defining amplitude controlled load for each node. The easiest way to do this would be by editing the input file directly - just copy amplitude and load definitions and change proper settings of each one of them. You can try automating this process in some advanced text editor.

 

[Men96]

Thank you for your answers. Looks like I cannot escape from learning Fortran and using subroutines. Thank you all.