Need help -Time history - loads due to inertia/waves.

Hi

I'm currently working on my thesis.

Our tools are:

Autodesk Inventor

Staad Pro

ANSYS 13.

CEASAR II

We are making a CFU-skid for FPSO. 

The vessel is subjected to acceleration due to waves.

I want to do a dynamic analysis of the structure, piping and equipment.

1) How do i analyze the structure using time-history loads? 

(Error message: Misspelling??)  - Input freq, amp, cycles is correct.

Are there any step by step instructions available?

2) How can I simulate equipment and pipe masses subjected to inertia due to waves in Staad Pro?

We have made 3D modell in Autodesk inventor of the CFU-Skid.

3) Is it possible to export assemblies from Autodesk Inventor to ANSYS or Staad Pro?

Are there step by step instructions available for export and analysis?

Any tip would be helpful.

Ivar Hestvik , HIOA , OSLO Norway