UUV Internal Magnetic Field Modeling and Distribution Characteristics Based on Finite Element Simulation
In view of the demand for the magnetic field distribution characteristics of unmanned underwater ve-hicle(UUV),this paper used the finite element simulation software COMSOL Multiphysics to study the mag-netic field distribution of UUV for the first time.Firstly,the source and distribution of the internal magnetic field in UUV was analyzed;then,the magnetic dipole theoretical calculation and COMSOL magnetic field mod-eling simulation were compared and analyzed,and the reliability of magnetic filed modeling using COMSOL soft-ware simulation method was discussed;finally,the COMSOL simulation software was used to build a UUV ge-ometric modeling and analyze,the distribution characteristics of the interference magnetic field of the UUV plat-form.The modeling and simulation results showed that the magnetic dipole modeling using COMSOL was cor-rect and reliable;the magnetic induction intensity of the rear part of the UUV platform was the strongest;the magnetic induction intensity at the bow and stern is the minimum,about 20nT,which provided a basis for the installation position of magnetic sensor and low magnetic optimization design of UUV platform.
UUVmagnetic field distributionmodeling and simulationmagnetic dipole