Detection of sources of nonlinearity in multiple bolted joints by use of laser vibrometer

Arnaldo delli Carri; Sante Campanelli; Dario Di Maio

doi:10.1007/978-3-030-12935-4_1

Detection of sources of nonlinearity in multiple bolted joints by use of laser vibrometer

Arnaldo delli Carri, Sante Campanelli, Dario Di Maio^*

^*Corresponding author for this work

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

Abstract

The use of non-contact measurement methods for detecting and locating sources of nonlinearities can be potentially a break-through in the nowadays experimental modal analysis. The primary goal is to define more effective test strategies, whereby contact sensors will measure the nonlinear vibration responses at the best location possible. Jointed structures are a typical example where a large number of the joint can pose the question of where what and how to measure the nonlinear response. Upon the identification of one, or more, nonlinear response mode the objective is to determine where is the source of such nonlinear vibration. Nonlinearity can be characterised when its source is well defined and can be adequately tested. This paper will attempt to detect and locate the source of nonlinearity from a multi-beam jointed assembly. The approach will be carried out by using both contact and non-contact measurement methods, the results of which will be compared and evaluated. The operator to detect the source of nonlinearity will be the coherence function applied to random response data.

Original language	English
Title of host publication	Rotating Machinery, Optical Methods and Scanning LDV Methods
Subtitle of host publication	roceedings of the 37th IMAC, A Conference and Exposition on Structural Dynamics 2019
Editors	Christopher Niezrecki, Javad Baqersad, Dario Di Maio
Place of Publication	Cham
Publisher	Springer
Pages	1-13
Number of pages	13
Volume	6
ISBN (Electronic)	978-3-030-12935-4
ISBN (Print)	978-3-030-12934-7
DOIs	https://doi.org/10.1007/978-3-030-12935-4_1
Publication status	Published - 2019
Externally published	Yes
Event	37th Conference and Exposition on Structural Dynamics, IMAC 2019 - Orlando, United States Duration: 28 Jan 2019 → 31 Jan 2019 Conference number: 37

Publication series

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

Conference

Conference	37th Conference and Exposition on Structural Dynamics, IMAC 2019
Abbreviated title	IMAC
Country	United States
City	Orlando
Period	28/01/19 → 31/01/19

Keywords

Bolted joints
Nonlinear vibration testing
SLDV

Access to Document

10.1007/978-3-030-12935-4_1

Link to publication in Scopus

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delli Carri, A., Campanelli, S., & Di Maio, D. (2019). Detection of sources of nonlinearity in multiple bolted joints by use of laser vibrometer. In C. Niezrecki, J. Baqersad, & D. Di Maio (Eds.), Rotating Machinery, Optical Methods and Scanning LDV Methods: roceedings of the 37th IMAC, A Conference and Exposition on Structural Dynamics 2019 (Vol. 6, pp. 1-13). (Conference Proceedings of the Society for Experimental Mechanics Series). Springer. https://doi.org/10.1007/978-3-030-12935-4_1

delli Carri, Arnaldo ; Campanelli, Sante ; Di Maio, Dario. / Detection of sources of nonlinearity in multiple bolted joints by use of laser vibrometer. Rotating Machinery, Optical Methods and Scanning LDV Methods: roceedings of the 37th IMAC, A Conference and Exposition on Structural Dynamics 2019. editor / Christopher Niezrecki ; Javad Baqersad ; Dario Di Maio. Vol. 6 Cham : Springer, 2019. pp. 1-13 (Conference Proceedings of the Society for Experimental Mechanics Series).

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title = "Detection of sources of nonlinearity in multiple bolted joints by use of laser vibrometer",

abstract = "The use of non-contact measurement methods for detecting and locating sources of nonlinearities can be potentially a break-through in the nowadays experimental modal analysis. The primary goal is to define more effective test strategies, whereby contact sensors will measure the nonlinear vibration responses at the best location possible. Jointed structures are a typical example where a large number of the joint can pose the question of where what and how to measure the nonlinear response. Upon the identification of one, or more, nonlinear response mode the objective is to determine where is the source of such nonlinear vibration. Nonlinearity can be characterised when its source is well defined and can be adequately tested. This paper will attempt to detect and locate the source of nonlinearity from a multi-beam jointed assembly. The approach will be carried out by using both contact and non-contact measurement methods, the results of which will be compared and evaluated. The operator to detect the source of nonlinearity will be the coherence function applied to random response data.",

keywords = "Bolted joints, Nonlinear vibration testing, SLDV",

author = "{delli Carri}, Arnaldo and Sante Campanelli and {Di Maio}, Dario",

year = "2019",

doi = "10.1007/978-3-030-12935-4_1",

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delli Carri, A, Campanelli, S & Di Maio, D 2019, Detection of sources of nonlinearity in multiple bolted joints by use of laser vibrometer. in C Niezrecki, J Baqersad & D Di Maio (eds), Rotating Machinery, Optical Methods and Scanning LDV Methods: roceedings of the 37th IMAC, A Conference and Exposition on Structural Dynamics 2019. vol. 6, Conference Proceedings of the Society for Experimental Mechanics Series, Springer, Cham, pp. 1-13, 37th Conference and Exposition on Structural Dynamics, IMAC 2019, Orlando, United States, 28/01/19. https://doi.org/10.1007/978-3-030-12935-4_1

Detection of sources of nonlinearity in multiple bolted joints by use of laser vibrometer. / delli Carri, Arnaldo; Campanelli, Sante; Di Maio, Dario.

Rotating Machinery, Optical Methods and Scanning LDV Methods: roceedings of the 37th IMAC, A Conference and Exposition on Structural Dynamics 2019. ed. / Christopher Niezrecki; Javad Baqersad; Dario Di Maio. Vol. 6 Cham : Springer, 2019. p. 1-13 (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, Dario

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PY - 2019

Y1 - 2019

N2 - The use of non-contact measurement methods for detecting and locating sources of nonlinearities can be potentially a break-through in the nowadays experimental modal analysis. The primary goal is to define more effective test strategies, whereby contact sensors will measure the nonlinear vibration responses at the best location possible. Jointed structures are a typical example where a large number of the joint can pose the question of where what and how to measure the nonlinear response. Upon the identification of one, or more, nonlinear response mode the objective is to determine where is the source of such nonlinear vibration. Nonlinearity can be characterised when its source is well defined and can be adequately tested. This paper will attempt to detect and locate the source of nonlinearity from a multi-beam jointed assembly. The approach will be carried out by using both contact and non-contact measurement methods, the results of which will be compared and evaluated. The operator to detect the source of nonlinearity will be the coherence function applied to random response data.

AB - The use of non-contact measurement methods for detecting and locating sources of nonlinearities can be potentially a break-through in the nowadays experimental modal analysis. The primary goal is to define more effective test strategies, whereby contact sensors will measure the nonlinear vibration responses at the best location possible. Jointed structures are a typical example where a large number of the joint can pose the question of where what and how to measure the nonlinear response. Upon the identification of one, or more, nonlinear response mode the objective is to determine where is the source of such nonlinear vibration. Nonlinearity can be characterised when its source is well defined and can be adequately tested. This paper will attempt to detect and locate the source of nonlinearity from a multi-beam jointed assembly. The approach will be carried out by using both contact and non-contact measurement methods, the results of which will be compared and evaluated. The operator to detect the source of nonlinearity will be the coherence function applied to random response data.

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ER -

delli Carri A, Campanelli S, Di Maio D. Detection of sources of nonlinearity in multiple bolted joints by use of laser vibrometer. In Niezrecki C, Baqersad J, Di Maio D, editors, Rotating Machinery, Optical Methods and Scanning LDV Methods: roceedings of the 37th IMAC, A Conference and Exposition on Structural Dynamics 2019. Vol. 6. Cham: Springer. 2019. p. 1-13. (Conference Proceedings of the Society for Experimental Mechanics Series). https://doi.org/10.1007/978-3-030-12935-4_1