Validation of Closed Loop Degaussing System for Double Hull Submarines

Laurent Demilier (1) , Gilles Cauffet (2) , Olivier Chadebec (2) , Jean-Louis Coulomb (2) , Laure-Line Rouve (2)

1 DCNS
2 G2ELab - Laboratoire de Génie Electrique de Grenoble

This paper presents last DCNS development on Closed Loop Degaussing System dedicated to high performance electromagnetic silent warship. This paper focuses on an evolution of the CLDG algorithm for degaussed warship. Developed in cooperation with Grenoble Electrical Engineering Lab, this genuine method allows to determine the hull unknown magnetization components, thus the predicted signature, based on real time magnetic measurements from sensors located very close to hull. The inverse problem is solved leading to the determination of the complete magnetic model of the ship. A large and complex double hull submarine mock-up has been designed and produced. The new developed method has been successfully validated on this mock up, and the interest of the CLDG system has been confirmed. In conclusion, DCNS-G2ELAB roadmap for full scale CLDG completion is presented.

Domaines: Energie électrique

Laurent Demilier, Gilles Cauffet, Olivier Chadebec, Jean-Louis Coulomb, Laure-Line Rouve. Validation of Closed Loop Degaussing System for Double Hull Submarines. marine system and technology (2010), Nov 2010, Rome, Italy. ⟨hal-00567150⟩