Identification of Light Damping in Structures

J. L. Jensen, Rune Brincker, A. Rytter

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Resumé

Different methods to identification of linear and nonlinear damping in lightly damped structures are discussed in this paper. The discussion is based on experiments with a 4 meter high monopile. Two alternative methods have been used for experimental cases of linear and nonlinear damping. Method 1 is identification by ARMA models assuming a white noise input.Method 2 is identification by simulation of a free decay response. Experimental data on the free decay response has been obtained directly by measurement as well as by the random decrement technique. Two experimental cases has been considered. the first case was a naturally damped monopile which was considered to be linear viscous damped. The second case was nonlinear viscous damping of the monopile due to a mounted damper on the monopile. The two cases illustrates identification of lightly damping in the linear and nonlinear case.
OriginalsprogEngelsk
TitelProceedings of the 8th International Modal Analysis Conference : January 29 - February 1, 1990, Hyatt Orlando Kissimmee, Florida
Antal sider7
ForlagSociety for Experimental Mechanics
Publikationsdato1990
Sider1041-1047
ISBN (Trykt)0912053852
StatusUdgivet - 1990
BegivenhedThe International Modal Analysis Conference - Hyatt Orlando Kissimmee, Florida, USA
Varighed: 29 jan. 19901 feb. 1990
Konferencens nummer: 8

Konference

KonferenceThe International Modal Analysis Conference
Nummer8
LandUSA
ByHyatt Orlando Kissimmee, Florida
Periode29/01/199001/02/1990
Navn International Modal Analysis Conference. Proceedings (Print)
ISSN1046-6770

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damping
autoregressive moving average
viscous damping
dampers
decay
white noise
simulation

Emneord

  • Damping
  • Monopile
  • ARMA Models

Citer dette

Jensen, J. L., Brincker, R., & Rytter, A. (1990). Identification of Light Damping in Structures. I Proceedings of the 8th International Modal Analysis Conference: January 29 - February 1, 1990, Hyatt Orlando Kissimmee, Florida (s. 1041-1047). Society for Experimental Mechanics. International Modal Analysis Conference. Proceedings (Print)
Jensen, J. L. ; Brincker, Rune ; Rytter, A. / Identification of Light Damping in Structures. Proceedings of the 8th International Modal Analysis Conference: January 29 - February 1, 1990, Hyatt Orlando Kissimmee, Florida. Society for Experimental Mechanics, 1990. s. 1041-1047 ( International Modal Analysis Conference. Proceedings (Print)).
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title = "Identification of Light Damping in Structures",
abstract = "Different methods to identification of linear and nonlinear damping in lightly damped structures are discussed in this paper. The discussion is based on experiments with a 4 meter high monopile. Two alternative methods have been used for experimental cases of linear and nonlinear damping. Method 1 is identification by ARMA models assuming a white noise input.Method 2 is identification by simulation of a free decay response. Experimental data on the free decay response has been obtained directly by measurement as well as by the random decrement technique. Two experimental cases has been considered. the first case was a naturally damped monopile which was considered to be linear viscous damped. The second case was nonlinear viscous damping of the monopile due to a mounted damper on the monopile. The two cases illustrates identification of lightly damping in the linear and nonlinear case.",
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Jensen, JL, Brincker, R & Rytter, A 1990, Identification of Light Damping in Structures. i Proceedings of the 8th International Modal Analysis Conference: January 29 - February 1, 1990, Hyatt Orlando Kissimmee, Florida. Society for Experimental Mechanics, International Modal Analysis Conference. Proceedings (Print), s. 1041-1047, The International Modal Analysis Conference, Hyatt Orlando Kissimmee, Florida, USA, 29/01/1990.

Identification of Light Damping in Structures. / Jensen, J. L.; Brincker, Rune; Rytter, A.

Proceedings of the 8th International Modal Analysis Conference: January 29 - February 1, 1990, Hyatt Orlando Kissimmee, Florida. Society for Experimental Mechanics, 1990. s. 1041-1047 ( International Modal Analysis Conference. Proceedings (Print)).

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

TY - GEN

T1 - Identification of Light Damping in Structures

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AU - Rytter, A.

PY - 1990

Y1 - 1990

N2 - Different methods to identification of linear and nonlinear damping in lightly damped structures are discussed in this paper. The discussion is based on experiments with a 4 meter high monopile. Two alternative methods have been used for experimental cases of linear and nonlinear damping. Method 1 is identification by ARMA models assuming a white noise input.Method 2 is identification by simulation of a free decay response. Experimental data on the free decay response has been obtained directly by measurement as well as by the random decrement technique. Two experimental cases has been considered. the first case was a naturally damped monopile which was considered to be linear viscous damped. The second case was nonlinear viscous damping of the monopile due to a mounted damper on the monopile. The two cases illustrates identification of lightly damping in the linear and nonlinear case.

AB - Different methods to identification of linear and nonlinear damping in lightly damped structures are discussed in this paper. The discussion is based on experiments with a 4 meter high monopile. Two alternative methods have been used for experimental cases of linear and nonlinear damping. Method 1 is identification by ARMA models assuming a white noise input.Method 2 is identification by simulation of a free decay response. Experimental data on the free decay response has been obtained directly by measurement as well as by the random decrement technique. Two experimental cases has been considered. the first case was a naturally damped monopile which was considered to be linear viscous damped. The second case was nonlinear viscous damping of the monopile due to a mounted damper on the monopile. The two cases illustrates identification of lightly damping in the linear and nonlinear case.

KW - Damping

KW - Monopile

KW - ARMA Models

KW - Damping

KW - Monopile

KW - ARMA Models

M3 - Article in proceeding

SN - 0912053852

T3 - International Modal Analysis Conference. Proceedings (Print)

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Jensen JL, Brincker R, Rytter A. Identification of Light Damping in Structures. I Proceedings of the 8th International Modal Analysis Conference: January 29 - February 1, 1990, Hyatt Orlando Kissimmee, Florida. Society for Experimental Mechanics. 1990. s. 1041-1047. ( International Modal Analysis Conference. Proceedings (Print)).