ROV launch and recovery from an unmanned autonomous surface vessel – Hydrodynamic modelling and system integration

This paper focusses on the hydrodynamic performance of an unmanned vehicle system, consisting a remotely operated underwater (ROV) that has to be launched and recovered autonomously from Autonomous Surface Vehicles (ASV). The model ASV/ROV coupled system is described in detail solved numerically. seeks assess overall including stability ASV, ROV tidal current capacity required power launch recovery winch system. results demonstrate this can complete launch, holding tasks meeting for given requirements. decreases with larger target water depth. maximum umbilical tension observed during steep wave instances when proximity ASV. A down-control force demonstrated suitable solution limit within rated limits. presents methods considerations working towards fully autonomous capable inspection maintenance missions. work will useful practitioners researcher offshore systems. • nonlinear promoted evaluate effects caused by integration numerical validated sea trial data. environment discussed. Two control are compared.