External Force Dynamic Link Libraries
ANSYS AQWA has the ability to include a user-defined external force algorithm via a dynamic link library (DLL). A DLL can be created to calculate a force based on time, position and/or velocity of a structure. Example interfaces are provided for C or FORTRAN™, but any programming language that can produce a DLL can be employed. An added mass matrix can be computed at each time step to simulate inertia forces. The calculation can be controlled by a set of up to 100 integer parameters and 100 real parameters that may be input and then passed to the external force routine.
This facility can be used to model: