The ANSYS ASAS suites are formulated from a number of modular programs aimed at the global analysis market, with special features specifically for the offshore market. When packaged as ANSYS ASAS the modules cover general finite element (linear and non-linear), single wave case generation along with post processing to obtain results effectively. The additional modules included with the ANSYS ASAS Offshore suite enables the engineer to perform the automated generation of wave loads; soil-pile-structure interaction; combined with ultimate limit strength and serviceability limit strength design assessments; and spectral fatigue.
The courses centre on practical workshops combined with tutorial sessions in order to give practical advice and useful experience to the attendee in order for them to create their own analysis efficiently and effectively, understanding the process for offshore design using ANSYS ASAS Offshore.
This course is an introductory course and hence no previous ANSYS ASAS experience is necessary, it is helpful if the attendee has had exposure to the concepts of FE analysis.
To introduce linear offshore analysis, the course centres on the analysis of a typical offshore structure, initially a static, ULS strength analysis and then developing the analysis to cater for hydrodynamic added mass and cyclic wave loading in order to perform a SLS fatigue analysis. The model is then used in conjunction with a soil-pile non-linear analysis to complete the in-place analysis.
To introduce non-linear offshore analysis, a model, representing a riser analysis, is produced. Both static and transient dynamic analyses are undertaken firstly with nodal loading and then with wave loading. Non-linear features are introduced in the form of load changing over time and specialist nonlinear elements.
For both analyses, pictorial and animated results presentations are covered as well as linking excel spreadsheets to the results database for graphical presentation.
To expand the non-linear analysis, an example ship & stinger model is created, including spring elements to model cables and ball joint connections. RAO's are imported from ANSYS AQWA (could be from a 3rd party software) and applied to the floating structure before a wave structure interaction analysis is performed. The analysis results are then extracted at various time-steps for ULS strength checks and SLS serviceability checks using a stress history fatigue analysis. This is followed by a short introduction to creating user routines to extract data from the results database.
About the course
The course is delivered over two full working days, from about 8:30 to 16:00, with breaks for lunch and coffee.
Included in the course
Lunch, coffe, course material and documentation and two weeks free support on ANSYS ASAS.