Design and Calibration of a Tri-Directional Contact Force Measurement System

In low pressure turbine stages, adjacent blades are coupled to each other at their tip by covers, called shrouds. Three-dimensional periodic contact forces at shrouds strongly affect the blade vibration level as energy is dissipated by friction. To validate contact models developed for the predictio...
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Autor*in:	Rizwan Ahmed [verfasserIn] Christian Maria Firrone [verfasserIn] Stefano Zucca [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2021

Schlagwörter:	turbine blade vibrations blade shrouds friction damping contact force measurement force sensors

Übergeordnetes Werk:	In: Applied Sciences - MDPI AG, 2012, 11(2021), 2, p 877
Übergeordnetes Werk:	volume:11 ; year:2021 ; number:2, p 877

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.3390/app11020877

Katalog-ID:	DOAJ014266016

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520			\|a In low pressure turbine stages, adjacent blades are coupled to each other at their tip by covers, called shrouds. Three-dimensional periodic contact forces at shrouds strongly affect the blade vibration level as energy is dissipated by friction. To validate contact models developed for the prediction of nonlinear forced response of shrouded blades, direct contact force measurement during dynamic tests is mandatory. In case of shrouded blades, the existing unidirectional and bi-directional contact force measurement methods need to be improved and extended to a tri-directional measurement of shroud contact forces for a comprehensive and more reliable validation of the shroud contact models. This demands an accurate and robust measurement solution that is compatible with the nature and orientation of the contact forces at blade shrouds. This study presents a cost effective and adaptable tri-directional force measurement system to measure static and dynamic contact forces simultaneously in three directions at blade shrouds during forced response tests. The system is based on three orthogonal force transducers connected to a reference block that will eventually be put in contact with the blade shroud in the test rig. A calibration process is outlined to define a decoupling matrix and its subsequent validation is demonstrated in order to evaluate the effectiveness of the measurement system to measure the actual contact forces acting on the contact.
650		4	\|a turbine blade vibrations
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650		4	\|a force sensors
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spelling	10.3390/app11020877 doi (DE-627)DOAJ014266016 (DE-599)DOAJc8f1dc438e02479686cdcf2f691bc809 DE-627 ger DE-627 rakwb eng TA1-2040 QH301-705.5 QC1-999 QD1-999 Rizwan Ahmed verfasserin aut Design and Calibration of a Tri-Directional Contact Force Measurement System 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In low pressure turbine stages, adjacent blades are coupled to each other at their tip by covers, called shrouds. Three-dimensional periodic contact forces at shrouds strongly affect the blade vibration level as energy is dissipated by friction. To validate contact models developed for the prediction of nonlinear forced response of shrouded blades, direct contact force measurement during dynamic tests is mandatory. In case of shrouded blades, the existing unidirectional and bi-directional contact force measurement methods need to be improved and extended to a tri-directional measurement of shroud contact forces for a comprehensive and more reliable validation of the shroud contact models. This demands an accurate and robust measurement solution that is compatible with the nature and orientation of the contact forces at blade shrouds. This study presents a cost effective and adaptable tri-directional force measurement system to measure static and dynamic contact forces simultaneously in three directions at blade shrouds during forced response tests. The system is based on three orthogonal force transducers connected to a reference block that will eventually be put in contact with the blade shroud in the test rig. A calibration process is outlined to define a decoupling matrix and its subsequent validation is demonstrated in order to evaluate the effectiveness of the measurement system to measure the actual contact forces acting on the contact. turbine blade vibrations blade shrouds friction damping contact force measurement force sensors Technology T Engineering (General). Civil engineering (General) Biology (General) Physics Chemistry Christian Maria Firrone verfasserin aut Stefano Zucca verfasserin aut In Applied Sciences MDPI AG, 2012 11(2021), 2, p 877 (DE-627)737287640 (DE-600)2704225-X 20763417 nnns volume:11 year:2021 number:2, p 877 https://doi.org/10.3390/app11020877 kostenfrei https://doaj.org/article/c8f1dc438e02479686cdcf2f691bc809 kostenfrei https://www.mdpi.com/2076-3417/11/2/877 kostenfrei https://doaj.org/toc/2076-3417 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 11 2021 2, p 877
allfields_unstemmed	10.3390/app11020877 doi (DE-627)DOAJ014266016 (DE-599)DOAJc8f1dc438e02479686cdcf2f691bc809 DE-627 ger DE-627 rakwb eng TA1-2040 QH301-705.5 QC1-999 QD1-999 Rizwan Ahmed verfasserin aut Design and Calibration of a Tri-Directional Contact Force Measurement System 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In low pressure turbine stages, adjacent blades are coupled to each other at their tip by covers, called shrouds. Three-dimensional periodic contact forces at shrouds strongly affect the blade vibration level as energy is dissipated by friction. To validate contact models developed for the prediction of nonlinear forced response of shrouded blades, direct contact force measurement during dynamic tests is mandatory. In case of shrouded blades, the existing unidirectional and bi-directional contact force measurement methods need to be improved and extended to a tri-directional measurement of shroud contact forces for a comprehensive and more reliable validation of the shroud contact models. This demands an accurate and robust measurement solution that is compatible with the nature and orientation of the contact forces at blade shrouds. This study presents a cost effective and adaptable tri-directional force measurement system to measure static and dynamic contact forces simultaneously in three directions at blade shrouds during forced response tests. The system is based on three orthogonal force transducers connected to a reference block that will eventually be put in contact with the blade shroud in the test rig. A calibration process is outlined to define a decoupling matrix and its subsequent validation is demonstrated in order to evaluate the effectiveness of the measurement system to measure the actual contact forces acting on the contact. turbine blade vibrations blade shrouds friction damping contact force measurement force sensors Technology T Engineering (General). Civil engineering (General) Biology (General) Physics Chemistry Christian Maria Firrone verfasserin aut Stefano Zucca verfasserin aut In Applied Sciences MDPI AG, 2012 11(2021), 2, p 877 (DE-627)737287640 (DE-600)2704225-X 20763417 nnns volume:11 year:2021 number:2, p 877 https://doi.org/10.3390/app11020877 kostenfrei https://doaj.org/article/c8f1dc438e02479686cdcf2f691bc809 kostenfrei https://www.mdpi.com/2076-3417/11/2/877 kostenfrei https://doaj.org/toc/2076-3417 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 11 2021 2, p 877
allfieldsGer	10.3390/app11020877 doi (DE-627)DOAJ014266016 (DE-599)DOAJc8f1dc438e02479686cdcf2f691bc809 DE-627 ger DE-627 rakwb eng TA1-2040 QH301-705.5 QC1-999 QD1-999 Rizwan Ahmed verfasserin aut Design and Calibration of a Tri-Directional Contact Force Measurement System 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In low pressure turbine stages, adjacent blades are coupled to each other at their tip by covers, called shrouds. Three-dimensional periodic contact forces at shrouds strongly affect the blade vibration level as energy is dissipated by friction. To validate contact models developed for the prediction of nonlinear forced response of shrouded blades, direct contact force measurement during dynamic tests is mandatory. In case of shrouded blades, the existing unidirectional and bi-directional contact force measurement methods need to be improved and extended to a tri-directional measurement of shroud contact forces for a comprehensive and more reliable validation of the shroud contact models. This demands an accurate and robust measurement solution that is compatible with the nature and orientation of the contact forces at blade shrouds. This study presents a cost effective and adaptable tri-directional force measurement system to measure static and dynamic contact forces simultaneously in three directions at blade shrouds during forced response tests. The system is based on three orthogonal force transducers connected to a reference block that will eventually be put in contact with the blade shroud in the test rig. A calibration process is outlined to define a decoupling matrix and its subsequent validation is demonstrated in order to evaluate the effectiveness of the measurement system to measure the actual contact forces acting on the contact. turbine blade vibrations blade shrouds friction damping contact force measurement force sensors Technology T Engineering (General). Civil engineering (General) Biology (General) Physics Chemistry Christian Maria Firrone verfasserin aut Stefano Zucca verfasserin aut In Applied Sciences MDPI AG, 2012 11(2021), 2, p 877 (DE-627)737287640 (DE-600)2704225-X 20763417 nnns volume:11 year:2021 number:2, p 877 https://doi.org/10.3390/app11020877 kostenfrei https://doaj.org/article/c8f1dc438e02479686cdcf2f691bc809 kostenfrei https://www.mdpi.com/2076-3417/11/2/877 kostenfrei https://doaj.org/toc/2076-3417 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 11 2021 2, p 877
allfieldsSound	10.3390/app11020877 doi (DE-627)DOAJ014266016 (DE-599)DOAJc8f1dc438e02479686cdcf2f691bc809 DE-627 ger DE-627 rakwb eng TA1-2040 QH301-705.5 QC1-999 QD1-999 Rizwan Ahmed verfasserin aut Design and Calibration of a Tri-Directional Contact Force Measurement System 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In low pressure turbine stages, adjacent blades are coupled to each other at their tip by covers, called shrouds. Three-dimensional periodic contact forces at shrouds strongly affect the blade vibration level as energy is dissipated by friction. To validate contact models developed for the prediction of nonlinear forced response of shrouded blades, direct contact force measurement during dynamic tests is mandatory. In case of shrouded blades, the existing unidirectional and bi-directional contact force measurement methods need to be improved and extended to a tri-directional measurement of shroud contact forces for a comprehensive and more reliable validation of the shroud contact models. This demands an accurate and robust measurement solution that is compatible with the nature and orientation of the contact forces at blade shrouds. This study presents a cost effective and adaptable tri-directional force measurement system to measure static and dynamic contact forces simultaneously in three directions at blade shrouds during forced response tests. The system is based on three orthogonal force transducers connected to a reference block that will eventually be put in contact with the blade shroud in the test rig. A calibration process is outlined to define a decoupling matrix and its subsequent validation is demonstrated in order to evaluate the effectiveness of the measurement system to measure the actual contact forces acting on the contact. turbine blade vibrations blade shrouds friction damping contact force measurement force sensors Technology T Engineering (General). Civil engineering (General) Biology (General) Physics Chemistry Christian Maria Firrone verfasserin aut Stefano Zucca verfasserin aut In Applied Sciences MDPI AG, 2012 11(2021), 2, p 877 (DE-627)737287640 (DE-600)2704225-X 20763417 nnns volume:11 year:2021 number:2, p 877 https://doi.org/10.3390/app11020877 kostenfrei https://doaj.org/article/c8f1dc438e02479686cdcf2f691bc809 kostenfrei https://www.mdpi.com/2076-3417/11/2/877 kostenfrei https://doaj.org/toc/2076-3417 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 11 2021 2, p 877
language	English
source	In Applied Sciences 11(2021), 2, p 877 volume:11 year:2021 number:2, p 877
sourceStr	In Applied Sciences 11(2021), 2, p 877 volume:11 year:2021 number:2, p 877
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	turbine blade vibrations blade shrouds friction damping contact force measurement force sensors Technology T Engineering (General). Civil engineering (General) Biology (General) Physics Chemistry
isfreeaccess_bool	true
container_title	Applied Sciences
authorswithroles_txt_mv	Rizwan Ahmed @@aut@@ Christian Maria Firrone @@aut@@ Stefano Zucca @@aut@@
publishDateDaySort_date	2021-01-01T00:00:00Z
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callnumber-first	T - Technology
author	Rizwan Ahmed
spellingShingle	Rizwan Ahmed misc TA1-2040 misc QH301-705.5 misc QC1-999 misc QD1-999 misc turbine blade vibrations misc blade shrouds misc friction damping misc contact force measurement misc force sensors misc Technology misc T misc Engineering (General). Civil engineering (General) misc Biology (General) misc Physics misc Chemistry Design and Calibration of a Tri-Directional Contact Force Measurement System
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topic_title	TA1-2040 QH301-705.5 QC1-999 QD1-999 Design and Calibration of a Tri-Directional Contact Force Measurement System turbine blade vibrations blade shrouds friction damping contact force measurement force sensors
topic	misc TA1-2040 misc QH301-705.5 misc QC1-999 misc QD1-999 misc turbine blade vibrations misc blade shrouds misc friction damping misc contact force measurement misc force sensors misc Technology misc T misc Engineering (General). Civil engineering (General) misc Biology (General) misc Physics misc Chemistry
topic_unstemmed	misc TA1-2040 misc QH301-705.5 misc QC1-999 misc QD1-999 misc turbine blade vibrations misc blade shrouds misc friction damping misc contact force measurement misc force sensors misc Technology misc T misc Engineering (General). Civil engineering (General) misc Biology (General) misc Physics misc Chemistry
topic_browse	misc TA1-2040 misc QH301-705.5 misc QC1-999 misc QD1-999 misc turbine blade vibrations misc blade shrouds misc friction damping misc contact force measurement misc force sensors misc Technology misc T misc Engineering (General). Civil engineering (General) misc Biology (General) misc Physics misc Chemistry
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title	Design and Calibration of a Tri-Directional Contact Force Measurement System
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title_sort	design and calibration of a tri-directional contact force measurement system
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title_auth	Design and Calibration of a Tri-Directional Contact Force Measurement System
abstract	In low pressure turbine stages, adjacent blades are coupled to each other at their tip by covers, called shrouds. Three-dimensional periodic contact forces at shrouds strongly affect the blade vibration level as energy is dissipated by friction. To validate contact models developed for the prediction of nonlinear forced response of shrouded blades, direct contact force measurement during dynamic tests is mandatory. In case of shrouded blades, the existing unidirectional and bi-directional contact force measurement methods need to be improved and extended to a tri-directional measurement of shroud contact forces for a comprehensive and more reliable validation of the shroud contact models. This demands an accurate and robust measurement solution that is compatible with the nature and orientation of the contact forces at blade shrouds. This study presents a cost effective and adaptable tri-directional force measurement system to measure static and dynamic contact forces simultaneously in three directions at blade shrouds during forced response tests. The system is based on three orthogonal force transducers connected to a reference block that will eventually be put in contact with the blade shroud in the test rig. A calibration process is outlined to define a decoupling matrix and its subsequent validation is demonstrated in order to evaluate the effectiveness of the measurement system to measure the actual contact forces acting on the contact.
abstractGer	In low pressure turbine stages, adjacent blades are coupled to each other at their tip by covers, called shrouds. Three-dimensional periodic contact forces at shrouds strongly affect the blade vibration level as energy is dissipated by friction. To validate contact models developed for the prediction of nonlinear forced response of shrouded blades, direct contact force measurement during dynamic tests is mandatory. In case of shrouded blades, the existing unidirectional and bi-directional contact force measurement methods need to be improved and extended to a tri-directional measurement of shroud contact forces for a comprehensive and more reliable validation of the shroud contact models. This demands an accurate and robust measurement solution that is compatible with the nature and orientation of the contact forces at blade shrouds. This study presents a cost effective and adaptable tri-directional force measurement system to measure static and dynamic contact forces simultaneously in three directions at blade shrouds during forced response tests. The system is based on three orthogonal force transducers connected to a reference block that will eventually be put in contact with the blade shroud in the test rig. A calibration process is outlined to define a decoupling matrix and its subsequent validation is demonstrated in order to evaluate the effectiveness of the measurement system to measure the actual contact forces acting on the contact.
abstract_unstemmed	In low pressure turbine stages, adjacent blades are coupled to each other at their tip by covers, called shrouds. Three-dimensional periodic contact forces at shrouds strongly affect the blade vibration level as energy is dissipated by friction. To validate contact models developed for the prediction of nonlinear forced response of shrouded blades, direct contact force measurement during dynamic tests is mandatory. In case of shrouded blades, the existing unidirectional and bi-directional contact force measurement methods need to be improved and extended to a tri-directional measurement of shroud contact forces for a comprehensive and more reliable validation of the shroud contact models. This demands an accurate and robust measurement solution that is compatible with the nature and orientation of the contact forces at blade shrouds. This study presents a cost effective and adaptable tri-directional force measurement system to measure static and dynamic contact forces simultaneously in three directions at blade shrouds during forced response tests. The system is based on three orthogonal force transducers connected to a reference block that will eventually be put in contact with the blade shroud in the test rig. A calibration process is outlined to define a decoupling matrix and its subsequent validation is demonstrated in order to evaluate the effectiveness of the measurement system to measure the actual contact forces acting on the contact.
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title_short	Design and Calibration of a Tri-Directional Contact Force Measurement System
url	https://doi.org/10.3390/app11020877 https://doaj.org/article/c8f1dc438e02479686cdcf2f691bc809 https://www.mdpi.com/2076-3417/11/2/877 https://doaj.org/toc/2076-3417
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Design and Calibration of a Tri-Directional Contact Force Measurement System

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