Comparison of magnetic parameters of CFAV QUEST from FLUX3D modeling and airborne measurements


  1. Nelson, J.B.
  2. Richards, T.C.
Corporate Authors
Defence R&D Canada - Atlantic, Dartmouth NS (CAN)
Under DRDC Atlantic contracts, Martec Ltd. developed a static magnetic model of CFAV QUEST for FLUX3D simulations using an existing finite-element model of the ship. The model accounts for both structural and some non-structural components of the ship. Martec performed a number of simulations with two magnetic configurations: induced magnetization only, and vertical permanent magnetization only. These simulated data have been used to estimate the permanent magnetization and magnetic susceptibility of a single prolate spheroid that best fits the overall ship’s signature. The National Research Council of Canada’s Convair 580 aircraft was used to measure the magnetic signature of CFAV QUEST in August 2006. These data were also fitted to a single prolate spheroid model. The two sets of parameter estimates (from FLUX3D simulated data and from measured airborne data) were compared to determine how the FLUX3D magnetic parameters should be modified to more closely match the simulated and the measured CFAV QUEST signatures.

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Report Number
DRDC-ATLANTIC-TM-2007-267 — Technical Memorandum
Date of publication
01 Feb 2009
Number of Pages
Electronic Document(PDF)

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