Damping of Torsional Beam Vibrations by Control of Warping Displacement

Jan Høgsberg*, David Hoffmeyer, Christian Ejlersen

*Kontaktforfatter for dette arbejde

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Resumé

Supplemental damping of torsional beam vibrations is considered by viscous bimoments acting on the axial warping displacement at the beam supports. The concept is illustrated by solving the governing eigenvalue problem for various support configurations with the applied bimoments represented as viscous boundary conditions. It is demonstrated that properly calibrated viscous bimoments introduce a significant level of supplemental damping to the targeted vibration mode and that the attainable damping can be accurately estimated from the two undamped problems associated with vanishing and infinite viscous parameters, respectively.

OriginalsprogEngelsk
Artikelnummer014501
TidsskriftJournal of Vibration and Acoustics
Vol/bind138
Udgave nummer1
Antal sider5
ISSN1048-9002
DOI
StatusUdgivet - 1. feb. 2016
Udgivet eksterntJa

Fingeraftryk

Vibrations (mechanical)
Damping
Boundary conditions

Citer dette

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abstract = "Supplemental damping of torsional beam vibrations is considered by viscous bimoments acting on the axial warping displacement at the beam supports. The concept is illustrated by solving the governing eigenvalue problem for various support configurations with the applied bimoments represented as viscous boundary conditions. It is demonstrated that properly calibrated viscous bimoments introduce a significant level of supplemental damping to the targeted vibration mode and that the attainable damping can be accurately estimated from the two undamped problems associated with vanishing and infinite viscous parameters, respectively.",
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Damping of Torsional Beam Vibrations by Control of Warping Displacement. / Høgsberg, Jan; Hoffmeyer, David; Ejlersen, Christian.

I: Journal of Vibration and Acoustics, Bind 138, Nr. 1, 014501, 01.02.2016.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

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AU - Høgsberg, Jan

AU - Hoffmeyer, David

AU - Ejlersen, Christian

PY - 2016/2/1

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N2 - Supplemental damping of torsional beam vibrations is considered by viscous bimoments acting on the axial warping displacement at the beam supports. The concept is illustrated by solving the governing eigenvalue problem for various support configurations with the applied bimoments represented as viscous boundary conditions. It is demonstrated that properly calibrated viscous bimoments introduce a significant level of supplemental damping to the targeted vibration mode and that the attainable damping can be accurately estimated from the two undamped problems associated with vanishing and infinite viscous parameters, respectively.

AB - Supplemental damping of torsional beam vibrations is considered by viscous bimoments acting on the axial warping displacement at the beam supports. The concept is illustrated by solving the governing eigenvalue problem for various support configurations with the applied bimoments represented as viscous boundary conditions. It is demonstrated that properly calibrated viscous bimoments introduce a significant level of supplemental damping to the targeted vibration mode and that the attainable damping can be accurately estimated from the two undamped problems associated with vanishing and infinite viscous parameters, respectively.

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DO - 10.1115/1.4031616

M3 - Journal article

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VL - 138

JO - Journal of Vibration and Acoustics

JF - Journal of Vibration and Acoustics

SN - 1048-9002

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