Detection of Sources of Nonlinearity in Multiple Bolted Joints by Use of Laser Vibrometer

Arnaldo delli Carri, Sante Campanelli, Dario Di Maio

Research output: Chapter in Book/Report/Conference proceedingConference proceeding

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 languageEnglish
Title of host publicationRotating Machinery, Optical Methods and Scanning LDV Methods, Volume 6 - Proceedings of the 37th IMAC, A Conference and Exposition on Structural Dynamics 2019
EditorsChristopher Niezrecki, Javad Baqersad, Dario Di Maio
PublisherSpringer New York LLC
Pages1-13
Number of pages13
Volume6
ISBN (Electronic)978-3-030-12935-4
ISBN (Print)978-3-030-12934-7
DOIs
Publication statusPublished - 5 Apr 2019
Event37th IMAC, A Conference and Exposition on Structural Dynamics, 2019 - Orlando, United States
Duration: 28 Jan 201931 Jan 2019

Publication series

Name Conference Proceedings of the Society for Experimental Mechanics Series (CPSEMS)
PublisherSpringer
ISSN (Print)2191-5644

Conference

Conference37th IMAC, A Conference and Exposition on Structural Dynamics, 2019
CountryUnited States
CityOrlando
Period28/01/1931/01/19

Fingerprint

Bolted joints
Contact sensors
Lasers
Modal analysis

Keywords

  • SLDV
  • Bolted joints
  • Nonlinear vibration testing

ASJC Scopus subject areas

  • Engineering(all)
  • Computational Mechanics
  • Mechanical Engineering

Cite this

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, Volume 6 - Proceedings 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 (CPSEMS)). Springer New York LLC. 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, Volume 6 - Proceedings of the 37th IMAC, A Conference and Exposition on Structural Dynamics 2019. ed. / Christopher Niezrecki; Javad Baqersad; Dario Di Maio. Vol. 6 Springer New York LLC, 2019. p. 1-13 ( Conference Proceedings of the Society for Experimental Mechanics Series (CPSEMS)).

Research output: Chapter in Book/Report/Conference proceedingConference proceeding

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, Volume 6 - Proceedings of the 37th IMAC, A Conference and Exposition on Structural Dynamics 2019. vol. 6, Conference Proceedings of the Society for Experimental Mechanics Series (CPSEMS), Springer New York LLC, pp. 1-13, 37th IMAC, A Conference and Exposition on Structural Dynamics, 2019, Orlando, United States, 28/01/19. https://doi.org/10.1007/978-3-030-12935-4_1
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, Volume 6 - Proceedings of the 37th IMAC, A Conference and Exposition on Structural Dynamics 2019. Vol. 6. Springer New York LLC. 2019. p. 1-13. ( Conference Proceedings of the Society for Experimental Mechanics Series (CPSEMS)). 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, Volume 6 - Proceedings of the 37th IMAC, A Conference and Exposition on Structural Dynamics 2019. editor / Christopher Niezrecki ; Javad Baqersad ; Dario Di Maio. Vol. 6 Springer New York LLC, 2019. pp. 1-13 ( Conference Proceedings of the Society for Experimental Mechanics Series (CPSEMS)).
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