Vibration-based estimation of beam boundary parameters

Michael Blom Hermansen; Jon Juel Thomsen

doi:10.1016/j.jsv.2018.05.016

Vibration-based estimation of beam boundary parameters

Michael Blom Hermansen, Jon Juel Thomsen^*

^*Corresponding author for this work

Research output: Contribution to journal › Journal article › Research › peer-review

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Abstract

Two methods are suggested for using measured vibrations to estimate linear boundary stiffness and damping for beams, while simultaneously estimating axial tension. Estimation is performed by fitting model boundary parameters to measured modal vibration data. The methods are validated using simulated and experimental data, and shown to be accurate when boundary parameters are not extreme, i.e. representing either zero stiffness or compliance.

Original language	English
Journal	Journal of Sound and Vibration
Volume	429
Pages (from-to)	287-304
ISSN	0022-460X
DOIs	https://doi.org/10.1016/j.jsv.2018.05.016
Publication status	Published - 2018

Keywords

Beam theory
Boundary conditions
Estimation
Nonlinear regression
Rayleigh's quotient
Tension

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10.1016/j.jsv.2018.05.016

Manuscript R1 Accepted author manuscript, 457 KB

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title = "Vibration-based estimation of beam boundary parameters",

abstract = "Two methods are suggested for using measured vibrations to estimate linear boundary stiffness and damping for beams, while simultaneously estimating axial tension. Estimation is performed by fitting model boundary parameters to measured modal vibration data. The methods are validated using simulated and experimental data, and shown to be accurate when boundary parameters are not extreme, i.e. representing either zero stiffness or compliance.",

keywords = "Beam theory, Boundary conditions, Estimation, Nonlinear regression, Rayleigh's quotient, Tension",

author = "Hermansen, {Michael Blom} and Thomsen, {Jon Juel}",

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AU - Hermansen, Michael Blom

AU - Thomsen, Jon Juel

PY - 2018

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AB - Two methods are suggested for using measured vibrations to estimate linear boundary stiffness and damping for beams, while simultaneously estimating axial tension. Estimation is performed by fitting model boundary parameters to measured modal vibration data. The methods are validated using simulated and experimental data, and shown to be accurate when boundary parameters are not extreme, i.e. representing either zero stiffness or compliance.

KW - Beam theory

KW - Boundary conditions

KW - Estimation

KW - Nonlinear regression

KW - Rayleigh's quotient

KW - Tension

U2 - 10.1016/j.jsv.2018.05.016

DO - 10.1016/j.jsv.2018.05.016

M3 - Journal article

AN - SCOPUS:85047606748

VL - 429

SP - 287

EP - 304

JO - Journal of Sound and Vibration

JF - Journal of Sound and Vibration

SN - 0022-460X

ER -