how to modeling the moving load on B31 in Abaqus?

[SeungMin]

Hello,

I want to model the moving load using subroutine vdload at B31 element like simply supported beam.

But the moving load open sources are for pressure load.

But in B31 element, it can't be appiled pressure.

So I applied line load and vdload to model the moving load.

But the result was not like moving load.

How can i model the moving load on B31 element using vdload?