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Simulating eddy current sensor outputs for blade tip timing

Nidhal Jamia Orcid Logo, Nidhal Jamia, Michael Friswell, Sami El-Borgi, Ralston Fernandes

Advances in Mechanical Engineering, Volume: 10, Issue: 1, Start page: 168781401774802

Swansea University Authors: Nidhal Jamia Orcid Logo, Michael Friswell

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DOI (Published version): 10.1177/1687814017748020

Abstract

Blade tip timing is a contactless method used to monitor the vibration of blades in rotating machinery. Blade vibration and clearance are important diagnostic features for condition monitoring, including the detection of blade cracks. Eddy current sensors are a practical choice for blade tip timing...

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Published in: Advances in Mechanical Engineering
ISSN: 1687-8140 1687-8140
Published: 2018
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URI: https://cronfa.swan.ac.uk/Record/cronfa38762
first_indexed 2018-02-19T14:33:19Z
last_indexed 2018-04-23T13:57:37Z
id cronfa38762
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spelling 2018-04-23T11:52:30.0055134 v2 38762 2018-02-19 Simulating eddy current sensor outputs for blade tip timing 846b2cd3a7717b296654010df30cb22a 0000-0003-0643-7812 Nidhal Jamia Nidhal Jamia true false 5894777b8f9c6e64bde3568d68078d40 Michael Friswell Michael Friswell true false 2018-02-19 ACEM Blade tip timing is a contactless method used to monitor the vibration of blades in rotating machinery. Blade vibration and clearance are important diagnostic features for condition monitoring, including the detection of blade cracks. Eddy current sensors are a practical choice for blade tip timing and have been used extensively. As the data requirements from the timing measurement become more stringent and the systems become more complicated, including the use of multiple sensors, the ability to fully understand and optimize the measurement system becomes more important. This requires detailed modeling of eddy current sensors in the blade tip timing application; the current approaches often rely on experimental trials. Existing simulations for eddy current sensors have not considered the particular case of a blade rotating past the sensor. Hence, the novel aspect of this article is the development of a detailed quasi-static finite element model of the electro-magnetic field to simulate the integrated measured output of the sensor. This model is demonstrated by simulating the effect of tip clearance, blade geometry, and blade velocity on the output of the eddy current sensor. This allows an understanding of the sources of error in the blade time of arrival estimate and hence insight into the accuracy of the blade vibration measurement. Journal Article Advances in Mechanical Engineering 10 1 168781401774802 1687-8140 1687-8140 Eddy current sensor, blade tip timing, electro-magnetic field, quasi-static finite element model 31 12 2018 2018-12-31 10.1177/1687814017748020 COLLEGE NANME Aerospace, Civil, Electrical, and Mechanical Engineering COLLEGE CODE ACEM Swansea University 2018-04-23T11:52:30.0055134 2018-02-19T09:32:14.6158900 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised Nidhal Jamia 0000-0003-0643-7812 1 Nidhal Jamia 2 Michael Friswell 3 Sami El-Borgi 4 Ralston Fernandes 5 0038762-19022018093532.pdf jamia2018.pdf 2018-02-19T09:35:32.9430000 Output 4246717 application/pdf Version of Record true 2018-02-19T00:00:00.0000000 true eng
title Simulating eddy current sensor outputs for blade tip timing
spellingShingle Simulating eddy current sensor outputs for blade tip timing
Nidhal Jamia
Michael Friswell
title_short Simulating eddy current sensor outputs for blade tip timing
title_full Simulating eddy current sensor outputs for blade tip timing
title_fullStr Simulating eddy current sensor outputs for blade tip timing
title_full_unstemmed Simulating eddy current sensor outputs for blade tip timing
title_sort Simulating eddy current sensor outputs for blade tip timing
author_id_str_mv 846b2cd3a7717b296654010df30cb22a
5894777b8f9c6e64bde3568d68078d40
author_id_fullname_str_mv 846b2cd3a7717b296654010df30cb22a_***_Nidhal Jamia
5894777b8f9c6e64bde3568d68078d40_***_Michael Friswell
author Nidhal Jamia
Michael Friswell
author2 Nidhal Jamia
Nidhal Jamia
Michael Friswell
Sami El-Borgi
Ralston Fernandes
format Journal article
container_title Advances in Mechanical Engineering
container_volume 10
container_issue 1
container_start_page 168781401774802
publishDate 2018
institution Swansea University
issn 1687-8140
1687-8140
doi_str_mv 10.1177/1687814017748020
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised
document_store_str 1
active_str 0
description Blade tip timing is a contactless method used to monitor the vibration of blades in rotating machinery. Blade vibration and clearance are important diagnostic features for condition monitoring, including the detection of blade cracks. Eddy current sensors are a practical choice for blade tip timing and have been used extensively. As the data requirements from the timing measurement become more stringent and the systems become more complicated, including the use of multiple sensors, the ability to fully understand and optimize the measurement system becomes more important. This requires detailed modeling of eddy current sensors in the blade tip timing application; the current approaches often rely on experimental trials. Existing simulations for eddy current sensors have not considered the particular case of a blade rotating past the sensor. Hence, the novel aspect of this article is the development of a detailed quasi-static finite element model of the electro-magnetic field to simulate the integrated measured output of the sensor. This model is demonstrated by simulating the effect of tip clearance, blade geometry, and blade velocity on the output of the eddy current sensor. This allows an understanding of the sources of error in the blade time of arrival estimate and hence insight into the accuracy of the blade vibration measurement.
published_date 2018-12-31T01:34:01Z
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score 11.04748

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