A potential-flow based flight simulator for an underwater glider
TypeArticles dans des revues avec comité de lecture
Underwater gliders are recent innovative types of autonomous underwater vehicles (AUVs) used in ocean exploration and observation. They adjust their buoyancy to dive and to return to the ocean surface. During the change of altitude, they use the hydrodynamic forces developed by their wings to move forward. Their flights are controlled by changing the position of their centers of gravity and their buoyancy to adjust their trim and heel angles. For better flight control, the understanding of the hydrodynamic behavior and the flight mechanics of the underwater glider is necessary. A 6-DOF motion simulator is coupled with an unsteady potential flow model for this purpose. In some specific cases, the numerical study demonstrates that an inappropriate stabilizer dimension can cause counter-steering behavior. The simulator can be used to improve the automatic flight control. It can also be used for the hydrodynamic design optimization of the devices. Keywords: underwater glider; potential flow; Newton-Euler equation; autonomous underwater vehicles (AUVs); flight simulator
Showing items related by title, author, creator and subject.
PHOEMSAPTHAWEE, Surasak; LEROUX, Jean-Baptiste; LAURENS, Jean-Marc; DENISET, François (Taylor & Francis, 2008)FRANCAIS Un module de cavitation à poche a été développé et implémenté sur un code potentiel hélice. La méthode pour représenter la cavitation à poche utilise les vitesses de transpiration qui permettent de dévier la ...
KGmax curves associated with second generation intact stability criteria for different types of ships GRINNAERT, François; BILLARD, Jean-YVes; LAURENS, Jean-Marc (SPRINGER, 2016)Currently, second generation intact stability criteria are being developed and evaluated by the International Maritime Organization (IMO). In this paper, we briefly present levels 1 and 2 assessment methods for the criteria ...
A methodology to obtain data at the slip-band scale from atomic force microscopy observations and crystal plasticity simulations. Application to hydrogen-induced slip localization on AISI 316L stainless steel AUBERT, Isabelle; SAINTIER, Nicolas; OLIVE, Jean-Marc; PLESSIER, François (elsevier, 2016)A local approach coupling atomic force microscopy (AFM) observations and polycrystal finite element calculations is proposed to provide data at the slip-band scale. From AFM measurements of slip bands emerging at the ...
HAUVILLE, Frédéric; LECUYER-LE BRIS, Romain; DENISET, François; FASSE, Guillaume (2018)Les propulseurs cycloïdaux sont caractérisés par la rotation de plusieurs pales autour d’un axe vertical, associée à un mouvement de chaque pale autour de son axe propre. L’objet de cet article concerne l’étude des lois ...
DUCOIN, Antoine; DENISET, François; ASTOLFI, Jacques Andre; SIGRIST, Jean-François (Elsevier, 2009)The present study is developed within the framework of marine structure design operating in transient regimes. It deals with an experimental and numerical investigation of the time–space distribution of the wall-pressure ...