Time Domain Simulation Model for Research Vessel Gunnerus

Abstract

A research vessel (RV) plays an important role in many fields such as oceanography, fisheries and polar research, hydrographic surveys, and oil exploration. It also has a unique function in maritime research and developments. Full-scale sea trials that require vessels, are usually extremely expensive; however, research vessels are more available than other types of ship. This paper presents the results of a time-domain simulation model of R/V Gunnerus, the research vessel of the Norwegian University of Science and Technology (NTNU), using MARINTEK’s vessel simulator (VeSim). VeSim is a time-domain simulator which solves dynamic equations of vessel motions and takes care of seakeeping and manoeuvring problems simultaneously. In addition to a set of captive and PMM tests on a scale model of Gunnerus, full-scale sea trials are carried out in both calm and harsh weather and the proposed simulation model is validated against sea trial data.

Co-simulation as a Fundamental Technology for Twin Ships

“…the Gunnerus as part of the SimVal Hassani et al (2015) project. It was later updated to better approximate an elongated Gunnerus vessel as part of the MAROFF KPN: Digital Twins for Vessel Life Cycle Service (TwinShip).…”

Manoeuvring Validation Analysis of the M/F Landegode

“…In either case, the results are combined in the ShipX Vessel Simulator Plug-in for calculation of the retardation functions, and simulator setup. A comprehensive description of the methodologies involved in deriving and implementing effective simulation models can be found in the two papers [6,7].…”

“…These tests dynamically excite the captive model, and were combined with accurate force and moment measurements, so as to be used to fit to an advanced model utilising IDSIMAN. Details on the approach used are described in [6,7]. The procedure of regression is verified by checking that the test data is reasonably accurately recreated by the manoeuvring model.…”

A framework for rapid virtual prototyping: a case study with the Gunnerus research vessel

“…If the paradigm has reached the level of industrial consortium initiatives (Hassani et al 2016;Perabo et al 2020), little work has been performed on consistently documenting the validation of the sub-systems of the co-simulation. Finally, in spite of advances in research to validate ship models (ITTC 2014;Hassani et al 2015;Selvik et al 2014) or use of data-driven methods for model parameter identification (Wang et al 2020), it is still not automated and quite time-consuming. Virtual sea trials (VSTs) offer cost benefits over expensive full-scale sea trials and model tests in towing tanks; they also offer consistent tests with reproducible environmental conditions, under the scrutiny of uncertainty assessment (Gavrilin and Steen 2017;Cheng et al 2019).…”