Experimental model validation of an aero-engine casing assembly

D. Di Maio; G. Ramakrishnan; Y. Rajasagaran

doi:10.1007/978-3-319-54858-6_34

Experimental model validation of an aero-engine casing assembly

D. Di Maio^*
, G. Ramakrishnan
, Y. Rajasagaran

^*Corresponding author for this work

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

2 Citations (Scopus)

Abstract

This work presents an experimental model validation of an aero-engine casing assembly. The objective is to show how to perform an experimental model validation of a casing assembly with bolted flanges. One of the major challenges was given by the unknown geometrical dimensions and material properties of the structure at the outset. This goal could be reached by using modal updating so as to identify the best geometrical and material parameters for the model. Experimental testing was a key contributor in this process, since the test data were used to benchmark the updating process. The updating process highlighted that the model could not be correctly updated until the joints were included. Therefore, the FE model required to be upgraded, by inclusions of joint flexibility, before it could be updated. This paper will present both the upgrading-updating process and the experimental testing carried out on the casing assembly.

Original language	English
Title of host publication	Model Validation and Uncertainty Quantification
Subtitle of host publication	Proceedings of the 35th IMAC, A Conference and Exposition on Structural Dynamics 2017
Editors	Babak Moaveni, Robert Barthorpe, Costas Papadimitriou, Israel Lopez, Roland Platz
Place of Publication	Cham
Publisher	Springer
Pages	339-347
Number of pages	9
Volume	3
ISBN (Electronic)	978-3-319-54858-6
ISBN (Print)	978-3-319-54857-9
DOIs	https://doi.org/10.1007/978-3-319-54858-6_34
Publication status	Published - 2017
Externally published	Yes
Event	35th Conference and Exposition on Structural Dynamics, IMAC 2017 - Garden Grove, United States Duration: 30 Jan 2017 → 2 Feb 2017 Conference number: 35

Publication series

Name	Conference Proceedings of the Society for Experimental Mechanics Series
Publisher	Springer
ISSN (Print)	2191-5644
ISSN (Electronic)	2191-5652

Conference

Conference	35th Conference and Exposition on Structural Dynamics, IMAC 2017
Abbreviated title	IMAC
Country/Territory	United States
City	Garden Grove
Period	30/01/17 → 2/02/17

Keywords

Experimental model validation
Updating
Upgrading

Access to Document

10.1007/978-3-319-54858-6_34

Cite this

Di Maio, D., Ramakrishnan, G., & Rajasagaran, Y. (2017). Experimental model validation of an aero-engine casing assembly. In B. Moaveni, R. Barthorpe, C. Papadimitriou, I. Lopez, & R. Platz (Eds.), Model Validation and Uncertainty Quantification: Proceedings of the 35th IMAC, A Conference and Exposition on Structural Dynamics 2017 (Vol. 3, pp. 339-347). (Conference Proceedings of the Society for Experimental Mechanics Series). Springer. https://doi.org/10.1007/978-3-319-54858-6_34

Di Maio, D. ; Ramakrishnan, G. ; Rajasagaran, Y. / Experimental model validation of an aero-engine casing assembly. Model Validation and Uncertainty Quantification: Proceedings of the 35th IMAC, A Conference and Exposition on Structural Dynamics 2017. editor / Babak Moaveni ; Robert Barthorpe ; Costas Papadimitriou ; Israel Lopez ; Roland Platz. Vol. 3 Cham : Springer, 2017. pp. 339-347 (Conference Proceedings of the Society for Experimental Mechanics Series).

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title = "Experimental model validation of an aero-engine casing assembly",

abstract = "This work presents an experimental model validation of an aero-engine casing assembly. The objective is to show how to perform an experimental model validation of a casing assembly with bolted flanges. One of the major challenges was given by the unknown geometrical dimensions and material properties of the structure at the outset. This goal could be reached by using modal updating so as to identify the best geometrical and material parameters for the model. Experimental testing was a key contributor in this process, since the test data were used to benchmark the updating process. The updating process highlighted that the model could not be correctly updated until the joints were included. Therefore, the FE model required to be upgraded, by inclusions of joint flexibility, before it could be updated. This paper will present both the upgrading-updating process and the experimental testing carried out on the casing assembly.",

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Di Maio, D, Ramakrishnan, G & Rajasagaran, Y 2017, Experimental model validation of an aero-engine casing assembly. in B Moaveni, R Barthorpe, C Papadimitriou, I Lopez & R Platz (eds), Model Validation and Uncertainty Quantification: Proceedings of the 35th IMAC, A Conference and Exposition on Structural Dynamics 2017. vol. 3, Conference Proceedings of the Society for Experimental Mechanics Series, Springer, Cham, pp. 339-347, 35th Conference and Exposition on Structural Dynamics, IMAC 2017, Garden Grove, California, United States, 30/01/17. https://doi.org/10.1007/978-3-319-54858-6_34

Experimental model validation of an aero-engine casing assembly. / Di Maio, D.; Ramakrishnan, G.; Rajasagaran, Y.
Model Validation and Uncertainty Quantification: Proceedings of the 35th IMAC, A Conference and Exposition on Structural Dynamics 2017. ed. / Babak Moaveni; Robert Barthorpe; Costas Papadimitriou; Israel Lopez; Roland Platz. Vol. 3 Cham: Springer, 2017. p. 339-347 (Conference Proceedings of the Society for Experimental Mechanics Series).

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

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AU - Di Maio, D.

AU - Ramakrishnan, G.

AU - Rajasagaran, Y.

N1 - Conference code: 35

PY - 2017

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N2 - This work presents an experimental model validation of an aero-engine casing assembly. The objective is to show how to perform an experimental model validation of a casing assembly with bolted flanges. One of the major challenges was given by the unknown geometrical dimensions and material properties of the structure at the outset. This goal could be reached by using modal updating so as to identify the best geometrical and material parameters for the model. Experimental testing was a key contributor in this process, since the test data were used to benchmark the updating process. The updating process highlighted that the model could not be correctly updated until the joints were included. Therefore, the FE model required to be upgraded, by inclusions of joint flexibility, before it could be updated. This paper will present both the upgrading-updating process and the experimental testing carried out on the casing assembly.

AB - This work presents an experimental model validation of an aero-engine casing assembly. The objective is to show how to perform an experimental model validation of a casing assembly with bolted flanges. One of the major challenges was given by the unknown geometrical dimensions and material properties of the structure at the outset. This goal could be reached by using modal updating so as to identify the best geometrical and material parameters for the model. Experimental testing was a key contributor in this process, since the test data were used to benchmark the updating process. The updating process highlighted that the model could not be correctly updated until the joints were included. Therefore, the FE model required to be upgraded, by inclusions of joint flexibility, before it could be updated. This paper will present both the upgrading-updating process and the experimental testing carried out on the casing assembly.

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KW - Upgrading

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Di Maio D, Ramakrishnan G, Rajasagaran Y. Experimental model validation of an aero-engine casing assembly. In Moaveni B, Barthorpe R, Papadimitriou C, Lopez I, Platz R, editors, Model Validation and Uncertainty Quantification: Proceedings of the 35th IMAC, A Conference and Exposition on Structural Dynamics 2017. Vol. 3. Cham: Springer. 2017. p. 339-347. (Conference Proceedings of the Society for Experimental Mechanics Series). doi: 10.1007/978-3-319-54858-6_34

Experimental model validation of an aero-engine casing assembly

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Keywords

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