First, a load is defined in the form of a static load case. In this case, it does not matter if it is a nodal load, a member load or a surface load. The, the time diagram defines the time step of loading and the size of the final load, which can be controlled by the multiplier k.
There are three types of time diagrams available:
Further information about the different types of time diagrams can be found in the manual of RF‑DYNAM Pro in Chapter 2.7.