---
_id: '47116'
abstract:
- lang: eng
  text: This paper presents a comprehensive study on diagnosing a spacecraft propulsion
    system utilizing data provided by the Prognostics and Health Management (PHM)
    society, specifically obtained as part of the Asia-Pacific PHM conference’s data
    challenge 2023. The objective of the challenge is to identify and diagnose known
    faults as well as unknown anomalies in the spacecraft’s propulsion system, which
    is critical for ensuring the spacecraft’s proper functionality and safety. To
    address this challenge, the proposed method follows a systematic approach of feature
    extraction, feature selection, and model development. The models employed in this
    study are kMeans clustering and decision trees combined to ensembles, enriched
    with expert knowledge. With the method presented, our team was capable of reaching
    high accuracy in identifying anomalies as well as diagnosing faults, resulting
    in attaining the seventh place with a score of 93.08 %.
author:
- first_name: Osarenren Kennedy
  full_name: Aimiyekagbon, Osarenren Kennedy
  id: '9557'
  last_name: Aimiyekagbon
- first_name: Alexander
  full_name: Löwen, Alexander
  id: '47233'
  last_name: Löwen
- first_name: Amelie
  full_name: Bender, Amelie
  id: '54290'
  last_name: Bender
- first_name: Lars
  full_name: Muth, Lars
  id: '77313'
  last_name: Muth
  orcid: 0000-0002-2938-5616
- first_name: Walter
  full_name: Sextro, Walter
  id: '21220'
  last_name: Sextro
citation:
  ama: 'Aimiyekagbon OK, Löwen A, Bender A, Muth L, Sextro W. Expert-Informed Hierarchical
    Diagnostics of Multiple Fault Modes of a Spacecraft Propulsion System. In: <i>Proceedings
    of the Asia Pacific Conference of the PHM Society 2023 </i>. Vol 4. ; 2023. doi:<a
    href="https://doi.org/10.36001/phmap.2023.v4i1.3596">10.36001/phmap.2023.v4i1.3596</a>'
  apa: Aimiyekagbon, O. K., Löwen, A., Bender, A., Muth, L., &#38; Sextro, W. (2023).
    Expert-Informed Hierarchical Diagnostics of Multiple Fault Modes of a Spacecraft
    Propulsion System. <i>Proceedings of the Asia Pacific Conference of the PHM Society
    2023 </i>, <i>4</i>(1). <a href="https://doi.org/10.36001/phmap.2023.v4i1.3596">https://doi.org/10.36001/phmap.2023.v4i1.3596</a>
  bibtex: '@inproceedings{Aimiyekagbon_Löwen_Bender_Muth_Sextro_2023, title={Expert-Informed
    Hierarchical Diagnostics of Multiple Fault Modes of a Spacecraft Propulsion System},
    volume={4}, DOI={<a href="https://doi.org/10.36001/phmap.2023.v4i1.3596">10.36001/phmap.2023.v4i1.3596</a>},
    number={1}, booktitle={Proceedings of the Asia Pacific Conference of the PHM Society
    2023 }, author={Aimiyekagbon, Osarenren Kennedy and Löwen, Alexander and Bender,
    Amelie and Muth, Lars and Sextro, Walter}, year={2023} }'
  chicago: Aimiyekagbon, Osarenren Kennedy, Alexander Löwen, Amelie Bender, Lars Muth,
    and Walter Sextro. “Expert-Informed Hierarchical Diagnostics of Multiple Fault
    Modes of a Spacecraft Propulsion System.” In <i>Proceedings of the Asia Pacific
    Conference of the PHM Society 2023 </i>, Vol. 4, 2023. <a href="https://doi.org/10.36001/phmap.2023.v4i1.3596">https://doi.org/10.36001/phmap.2023.v4i1.3596</a>.
  ieee: 'O. K. Aimiyekagbon, A. Löwen, A. Bender, L. Muth, and W. Sextro, “Expert-Informed
    Hierarchical Diagnostics of Multiple Fault Modes of a Spacecraft Propulsion System,”
    in <i>Proceedings of the Asia Pacific Conference of the PHM Society 2023 </i>,
    2023, vol. 4, no. 1, doi: <a href="https://doi.org/10.36001/phmap.2023.v4i1.3596">10.36001/phmap.2023.v4i1.3596</a>.'
  mla: Aimiyekagbon, Osarenren Kennedy, et al. “Expert-Informed Hierarchical Diagnostics
    of Multiple Fault Modes of a Spacecraft Propulsion System.” <i>Proceedings of
    the Asia Pacific Conference of the PHM Society 2023 </i>, vol. 4, no. 1, 2023,
    doi:<a href="https://doi.org/10.36001/phmap.2023.v4i1.3596">10.36001/phmap.2023.v4i1.3596</a>.
  short: 'O.K. Aimiyekagbon, A. Löwen, A. Bender, L. Muth, W. Sextro, in: Proceedings
    of the Asia Pacific Conference of the PHM Society 2023 , 2023.'
date_created: 2023-09-18T07:52:32Z
date_updated: 2024-08-19T07:39:12Z
department:
- _id: '151'
doi: 10.36001/phmap.2023.v4i1.3596
intvolume: '         4'
issue: '1'
keyword:
- PHM
- Fault Diagnostics
- Multiple Fault Modes
- Expert-Informed Diagnostics
- Anomaly Detection
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.papers.phmsociety.org/index.php/phmap/article/view/3596
oa: '1'
publication: 'Proceedings of the Asia Pacific Conference of the PHM Society 2023 '
quality_controlled: '1'
status: public
title: Expert-Informed Hierarchical Diagnostics of Multiple Fault Modes of a Spacecraft
  Propulsion System
type: conference
user_id: '9557'
volume: 4
year: '2023'
...