Reply To: Errors with multi-connected bodies using AQWA

[oe23m012]

Thanks for the reply

 

The high stiffness in cable is required to simmulate the Hydraulic cylinder so that the hulls don't move away because of the large hydrostatic forces exerting on the hulls away from the centerline. 

And the same thing withe fender stiffness tosimmulate the metal to metal contact between hulls so the arrangement between hinge, cable and fender will act like a class 3 lever 

Anyway i tried the analysis with the reduced stiffness 

The inital length is reduced to simmulate the initial tension the cylinder 

 

and the time doamain analysis gave error like this with a very small time step

And then stability analysis with following settings

But it stopped at 13696 iteration and throwed the above error so i gave 13000 iteration to get the idea of hinge load

Still the load is heigh

and with program controlled setting the following error came

So is there any chance to simmulate the Split hopper barge physics in ansys aqua.