there is no direct way.
However i was able to do it with smaller models as follows.
open RVM in naviswork manage and export as FBX
Insert FBX in autocad and export as DGN
Now import DGN into PDMS
there is no direct way.
However i was able to do it with smaller models as follows.
open RVM in naviswork manage and export as FBX
Insert FBX in autocad and export as DGN
Now import DGN into PDMS