tailieunhanh - Magnetic signature numerical modeling of a naval vessel

In this article, the author focuses on analyzing the impact of large scale metallic parts on thevessel. Simulation results show that these objects have a significant impact to trace the ship's magnetic field. Since then, the authors give some comments on stealth warships from the magnetic field in general. | Electronics Automation MAGNETIC SIGNATURE NUMERICAL MODELING OF A NAVAL VESSEL Phung Anh Tuan1 Trinh Dinh Cuong2 Abstract The survival of the ships that carry out river sea operations is subject to multiple threats. Operational stealth is an effective and relatively economic way to increase this parameter. The risk of losses caused to the ship could be mine torpedoes missiles of the enemy. Therefore the ability of stealth ship against attack weapons of the enemy is vital. The modern weapon systems equipped with sensors react with mechanisms such as thermal follow the high temperature region sound level follow the sound magnetic follow the magnetic field . In particular magnetic stealth capability of a warship is the most difficult to achieve . In order to obtain a invisible magnetic field radiation it is required that the ship to be designed and manufactured according to strict standards of its magnetic radiation also known as magnetic signature of the ship . In this article the author focuses on analyzing the impact of large scale metallic parts on thevessel. Simulation results show that these objects have a significant impact to trace the ship s magnetic field. Since then the authors give some comments on stealth warships from the magnetic field in general. Keywords Electromagnetic field Finite element modoleing Magnetic signature Warship Degaussing. 1. INTRODUCTION For a combat surface ship next to equip weapons and technical means serving combat to avoid possible damages when moving on the river sea is a mandatory task. The risk of losses caused to the ship could be mine torpedoes and missiles of the enemy 1 2 . Therefore the ability of stealth ship against attack weapons of the enemy is vital. The modern weapon systems equipped with sensors react with mechanisms such as thermal follow the high temperature region sound level follow the sound and magnetic follow the magnetic field . In particular magnetic stealth capability of a warship is the most difficult to