{"year":"2023","keyword":["PHM","Fault Diagnostics","Multiple Fault Modes","Expert-Informed Diagnostics","Anomaly Detection"],"status":"public","department":[{"_id":"151"}],"author":[{"id":"9557","last_name":"Aimiyekagbon","full_name":"Aimiyekagbon, Osarenren Kennedy","first_name":"Osarenren Kennedy"},{"full_name":"Löwen, Alexander","last_name":"Löwen","first_name":"Alexander","id":"47233"},{"id":"54290","first_name":"Amelie","last_name":"Bender","full_name":"Bender, Amelie"},{"first_name":"Lars","last_name":"Muth","full_name":"Muth, Lars","orcid":"0000-0002-2938-5616","id":"77313"},{"full_name":"Sextro, Walter","last_name":"Sextro","first_name":"Walter","id":"21220"}],"oa":"1","issue":"1","main_file_link":[{"open_access":"1","url":"https://www.papers.phmsociety.org/index.php/phmap/article/view/3596"}],"quality_controlled":"1","type":"conference","user_id":"9557","language":[{"iso":"eng"}],"volume":4,"date_created":"2023-09-18T07:52:32Z","date_updated":"2024-08-19T07:39:12Z","_id":"47116","abstract":[{"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 %.","lang":"eng"}],"doi":"10.36001/phmap.2023.v4i1.3596","publication":"Proceedings of the Asia Pacific Conference of the PHM Society 2023 ","intvolume":" 4","citation":{"apa":"Aimiyekagbon, O. K., Löwen, A., Bender, A., Muth, L., & Sextro, W. (2023). Expert-Informed Hierarchical Diagnostics of Multiple Fault Modes of a Spacecraft Propulsion System. Proceedings of the Asia Pacific Conference of the PHM Society 2023 , 4(1). https://doi.org/10.36001/phmap.2023.v4i1.3596","mla":"Aimiyekagbon, Osarenren Kennedy, et al. “Expert-Informed Hierarchical Diagnostics of Multiple Fault Modes of a Spacecraft Propulsion System.” Proceedings of the Asia Pacific Conference of the PHM Society 2023 , vol. 4, no. 1, 2023, doi:10.36001/phmap.2023.v4i1.3596.","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 Proceedings of the Asia Pacific Conference of the PHM Society 2023 , Vol. 4, 2023. https://doi.org/10.36001/phmap.2023.v4i1.3596.","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={10.36001/phmap.2023.v4i1.3596}, 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} }","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: Proceedings of the Asia Pacific Conference of the PHM Society 2023 . Vol 4. ; 2023. doi:10.36001/phmap.2023.v4i1.3596","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 Proceedings of the Asia Pacific Conference of the PHM Society 2023 , 2023, vol. 4, no. 1, doi: 10.36001/phmap.2023.v4i1.3596.","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."},"title":"Expert-Informed Hierarchical Diagnostics of Multiple Fault Modes of a Spacecraft Propulsion System"}