Dear seniors and teachers, hello, I ask you to give me some help. I currently have a bar element model for an ocean platform, and I'm trying to solve the dynamic response, the velocity and acceleration of the deformation of each node through explicit. Through the load calculation program written by myself, I have been able to obtain the time history of the node force on each node of the rod element. Now I want to submit the node force to Abaqus for structural dynamic analysis in the form of vdload. I have tried many methods, but it seems that vdload can only be used with self-defined pressure. 

Is there a way I can submit the node force to solve it.

（Another note on the problem: I also know that there is an aqua module in standard that can directly simulate the load of an offshore platform, but I have my own wave load calculation program, and my teacher asked me to use explicit. Explicit solution, and because I want to achieve a two-way coupling of fluid-structure coupling, so writing input files to achieve a single coupling way I do not want to use. Also please teachers to give some advice.）