Toptech participated in the Dynamic Analysis Support System (DASS) Project, a 5-year cooperative project between US Naval Sea System Command (NAVSEA), Royal Norwegian Navy (SFK), Norwegian and US research institutes and universities, and Norwegian industry. The project developed improved computational methods for the response of high-speed vessels in a seaway. The focus was on commercial monohulls and catamarans built of aluminium, and military monohulls of steel.
Toptech was invited to join the project as a result of the company's experience with global structural analysis of large high-speed vessels, and with ship classification requirements.
Results, computer programs and information from the project were exchanged between participants in Norway and USA. The DASS project had a total budget of USD 8 million, contributed by participants in the form of direct financial support and project work.
Principal areas investigated were:
In simpler terms, this amounted to developing reliable methods of first-principles design, ie. being able to estimate loads, motions, stability and structural response of fast ships in given sea conditions.
The Scope of Work included:
Main deliverables from the project were:
Verification & Validation Reports
The project was completed in 2000. Developmental work has continued at Marintek in Trondheim, Norway, in the form of preliminary ship design tools.