Modal Analysis of Wind Turbine Blades with Different Test Setup Configurations

E. Lorenzo; S. Manzato; B. Peeters; V. Ruffini; Peter Berring; Philipp Ulrich Haselbach; Kim Branner; Marcin Luczak

doi:10.1007/978-3-030-12684-1_14

Modal Analysis of Wind Turbine Blades with Different Test Setup Configurations

E. Lorenzo, S. Manzato, B. Peeters, V. Ruffini, Peter Berring, Philipp Ulrich Haselbach, Kim Branner, Marcin Luczak

Department of Wind Energy

Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review

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Abstract

Modal testing of large structures such as wind turbine blades poses several challenges. Applied test setup configuration, test specimen mounting and measurement equipment are known to affect the test results. This paper presents a comparison study of the modal tests of nominally identical 14.3 m long blades. Blade A was supported in free-free boundary conditions and tested with the Experimental Modal Analysis using accelerometers. Blade B was clamped to a concrete block and tested with Operational Modal Analysis and strain gauges. The modes and corresponding natural frequencies obtained from both test cases were compared and correlated with the numerical models of the blades.

Original language	English
Title of host publication	Topics in Modal Analysis & Testing
Editors	Michael L. Mains, Brandon J. Dilworth
Number of pages	10
Volume	8
Place of Publication	Cham
Publisher	Springer
Publication date	2019
Pages	143-152
Chapter	14
ISBN (Print)	978-3-030-12683-4
ISBN (Electronic)	978-3-030-12684-1
DOIs	https://doi.org/10.1007/978-3-030-12684-1_14
Publication status	Published - 2019
Event	IMAC-XXXVII Conference and Exposition on Structural Dynamics 2019: It's not just modal anymore - Rosen Plaza Hotel, Orlando, United States Duration: 28 Jan 2019 → 31 Jan 2019 Conference number: 37 https://eventegg.com/sem-imac/

Conference

Conference	IMAC-XXXVII Conference and Exposition on Structural Dynamics 2019
Number	37
Location	Rosen Plaza Hotel
Country	United States
City	Orlando
Period	28/01/2019 → 31/01/2019
Internet address	https://eventegg.com/sem-imac/

Series	Conference Proceedings of the Society for Experimental Mechanics Series
ISSN	2191-5644

Keywords

Experimental modal analysis
Operational modal analysis
Strain modal analysis
Wind turbine blade
Structural dynamics identification

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Lorenzo, E., Manzato, S., Peeters, B., Ruffini, V., Berring, P., Haselbach, P. U., Branner, K., & Luczak, M. (2019). Modal Analysis of Wind Turbine Blades with Different Test Setup Configurations. In M. L. Mains, & B. J. Dilworth (Eds.), Topics in Modal Analysis & Testing (Vol. 8, pp. 143-152). Springer. Conference Proceedings of the Society for Experimental Mechanics Series https://doi.org/10.1007/978-3-030-12684-1_14

Lorenzo, E. ; Manzato, S. ; Peeters, B. ; Ruffini, V. ; Berring, Peter ; Haselbach, Philipp Ulrich ; Branner, Kim ; Luczak, Marcin. / Modal Analysis of Wind Turbine Blades with Different Test Setup Configurations. Topics in Modal Analysis & Testing. editor / Michael L. Mains ; Brandon J. Dilworth. Vol. 8 Cham : Springer, 2019. pp. 143-152 (Conference Proceedings of the Society for Experimental Mechanics Series).

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abstract = "Modal testing of large structures such as wind turbine blades poses several challenges. Applied test setup configuration, test specimen mounting and measurement equipment are known to affect the test results. This paper presents a comparison study of the modal tests of nominally identical 14.3 m long blades. Blade A was supported in free-free boundary conditions and tested with the Experimental Modal Analysis using accelerometers. Blade B was clamped to a concrete block and tested with Operational Modal Analysis and strain gauges. The modes and corresponding natural frequencies obtained from both test cases were compared and correlated with the numerical models of the blades.",

keywords = "Experimental modal analysis, Operational modal analysis, Strain modal analysis, Wind turbine blade, Structural dynamics identification",

author = "E. Lorenzo and S. Manzato and B. Peeters and V. Ruffini and Peter Berring and Haselbach, {Philipp Ulrich} and Kim Branner and Marcin Luczak",

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booktitle = "Topics in Modal Analysis & Testing",

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Lorenzo, E, Manzato, S, Peeters, B, Ruffini, V, Berring, P , Haselbach, PU , Branner, K & Luczak, M 2019, Modal Analysis of Wind Turbine Blades with Different Test Setup Configurations. in ML Mains & BJ Dilworth (eds), Topics in Modal Analysis & Testing. vol. 8, Springer, Cham, Conference Proceedings of the Society for Experimental Mechanics Series, pp. 143-152, IMAC-XXXVII Conference and Exposition on Structural Dynamics 2019, Orlando, United States, 28/01/2019. https://doi.org/10.1007/978-3-030-12684-1_14

Modal Analysis of Wind Turbine Blades with Different Test Setup Configurations. / Lorenzo, E.; Manzato, S.; Peeters, B.; Ruffini, V.; Berring, Peter ; Haselbach, Philipp Ulrich ; Branner, Kim ; Luczak, Marcin.

Topics in Modal Analysis & Testing. ed. / Michael L. Mains; Brandon J. Dilworth. Vol. 8 Cham : Springer, 2019. p. 143-152 (Conference Proceedings of the Society for Experimental Mechanics Series).

Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review

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AU - Lorenzo, E.

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AU - Haselbach, Philipp Ulrich

AU - Branner, Kim

AU - Luczak, Marcin

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AB - Modal testing of large structures such as wind turbine blades poses several challenges. Applied test setup configuration, test specimen mounting and measurement equipment are known to affect the test results. This paper presents a comparison study of the modal tests of nominally identical 14.3 m long blades. Blade A was supported in free-free boundary conditions and tested with the Experimental Modal Analysis using accelerometers. Blade B was clamped to a concrete block and tested with Operational Modal Analysis and strain gauges. The modes and corresponding natural frequencies obtained from both test cases were compared and correlated with the numerical models of the blades.

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KW - Operational modal analysis

KW - Strain modal analysis

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Lorenzo E, Manzato S, Peeters B, Ruffini V, Berring P , Haselbach PU et al. Modal Analysis of Wind Turbine Blades with Different Test Setup Configurations. In Mains ML, Dilworth BJ, editors, Topics in Modal Analysis & Testing. Vol. 8. Cham: Springer. 2019. p. 143-152. (Conference Proceedings of the Society for Experimental Mechanics Series). https://doi.org/10.1007/978-3-030-12684-1_14