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4.8

Calculated on 05 May, 2025

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0.31

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Journal of Multidisciplinary Applied Natural Science

ISSN (eletronic): 2774-3047


Articles https://doi.org/10.47352/jmans.2774-3047.354

Assessing the Magnetic Shielding Effectiveness of Low Carbon Steel, Permalloy, and Mu-metal on Small Satellite Reaction Wheel Assemblies using Finite Element Analysis

Hogan Eighfansyah Susilo Poki Agung Budiantoro Ery Fitrianingsih Hasan Mayditia Eriko Nasemudin Nasser Adi Farmasiantoro Ahmad Fauzi Widodo Slamet Andi Mukhtar Tahir Nindhita Pratiwi

Author information

Hogan Eighfansyah Susilo

https://orcid.org/0000-0002-8176-7101
  • hoga001@brin.go.id
  • Research Centre for Satellite Technology, National Research and Innovation Agency (BRIN), Bogor-16310 (Indonesia)
  • Biography not informed.

Author information

Poki Agung Budiantoro

https://orcid.org/0009-0001-6534-9655
  • poki001@brin.go.id
  • Research Centre for Satellite Technology, National Research and Innovation Agency (BRIN), Bogor-16310 (Indonesia)
  • Biography not informed.

Author information

Ery Fitrianingsih

https://orcid.org/0009-0005-8039-4605
  • eryf001@brin.go.id
  • Research Centre for Satellite Technology, National Research and Innovation Agency (BRIN), Bogor-16310 (Indonesia)
  • Biography not informed.

Author information

Hasan Mayditia

https://orcid.org/0009-0001-3884-8467
  • hasa008@brin.go.id
  • Research Centre for Satellite Technology, National Research and Innovation Agency (BRIN), Bogor-16310 (Indonesia)
  • Biography not informed.

Author information

Eriko Nasemudin Nasser

https://orcid.org/0009-0006-0836-3860
  • erik001@brin.go.id
  • Research Centre for Satellite Technology, National Research and Innovation Agency (BRIN), Bogor-16310 (Indonesia)
  • Biography not informed.

Author information

Adi Farmasiantoro

https://orcid.org/0009-0009-9891-898X
  • adif001@brin.go.id
  • Research Centre for Satellite Technology, National Research and Innovation Agency (BRIN), Bogor-16310 (Indonesia)
  • Biography not informed.

Author information

Ahmad Fauzi

https://orcid.org/0000-0002-1306-8448
  • affauzimail@gmail.com
  • Research Centre for Satellite Technology, National Research and Innovation Agency (BRIN), Bogor-16310 (Indonesia)
  • Biography not informed.

Author information

Widodo Slamet

https://orcid.org/0009-0003-1467-5017
  • wido001@brin.go.id
  • Research Centre for Satellite Technology, National Research and Innovation Agency (BRIN), Bogor-16310 (Indonesia)
  • Biography not informed.

Author information

Andi Mukhtar Tahir

https://orcid.org/0009-0002-5630-5682
  • andi003@brin.go.id
  • Research Centre for Satellite Technology, National Research and Innovation Agency (BRIN), Bogor-16310 (Indonesia)
  • Biography not informed.

Author information

Nindhita Pratiwi

https://orcid.org/0009-0008-9631-216X
  • nindhita.pratiwi@sap.itera.ac.id
  • Atmospheric and Planetary Science Department, Institut Teknologi Sumatera, Lampung Selatan-35365 (Indonesia)
  • Biography not informed.

Published in: January 23, 2026

[1]
H. E. Susilo, “Assessing the Magnetic Shielding Effectiveness of Low Carbon Steel, Permalloy, and Mu-metal on Small Satellite Reaction Wheel Assemblies using Finite Element Analysis”, J. Multidiscip. Appl. Nat. Sci., Jan. 2026.

Abstract

Magnetic cleanliness is essential for small satellites carrying sensitive payloads such as magnetometers and particle detectors. Reaction wheel assemblies (RWAs) represent a primary source of stray magnetic fields, requiring effective shielding under strict mass and volume constraints. This study uses three-dimensional finite element analysis (FEM) in ANSYS Maxwell to evaluate the shielding effectiveness (SE) of high-permeability alloys (Mu-metal and Permalloy 80) and low-carbon steels (AISI 1008/1010) at thicknesses of 1–3 mm, with aluminum 6061-T6 as a non-magnetic baseline, within a cylindrical RWA enclosure geometry. Results reveal a critical design trade-off: High-permeability alloys provide superior attenuation (>65 dB at 100 mm; residual field <150 nT) and high mass efficiency (>700 dB/kg) but saturate at low flux density (0.8 T) and are costly. Low-carbon steels offer moderate SE (34–40 dB) with far higher saturation tolerance (2.2 T), structural robustness, and lower cost. Thickness scaling shows diminishing returns beyond 2 mm for high-permeability materials, whereas steels improve more linearly. Rather than proposing a new shielding concept, this study applies an integrated FEM-based evaluation approach for small satellite platforms to consistently assess shielding effectiveness, nonlinear saturation behavior, thickness scaling, and mass efficiency of candidate materials within a reaction-wheel-representative geometry under identical boundary conditions.

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