Systematic modelling, verification, calibration and validation of a ship propulsion simulation model

Abstract

The need for ship propulsion simulation models is widely acknowledged. However, a ship propulsion simulation model can only rightfully be used after its validity has been assessed. The importance of high quality validation increases when the simulation model is intended to be used to design working equipment. This paper proposes a systematic approach towards the modelling, verification, calibration and validation of a ship propulsion simulation model. Both the validity of static operating points and of the dynamic system behaviour are quantified, enabling objective quality assessment. The model that is validated here has successfully been used to develop and test a propulsion control system, aiming at increased cavitation free time in operational conditions. This is the topic of a further paper.