Mitigation of steady-state vibrations induced by ice

Tuomo Kärnä

Mitigation of steady-state vibrations induced by ice

Tuomo Kärnä

VTT Technical Research Centre of Finland

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

11 Citations (Scopus)

Abstract

Offshore structures are prone to ice-induced vibrations when they are subjected to the action of drifting level ice. These vibrations may cause liquefaction of the seabed. They may also cause fatigue problems and have adverse effects on the working conditions on an offshore structure. This paper describes first a mechanism in ice-structural interaction, which is responsible for the generation of steady-state vibrations. Second, parametric studies are carried out with a numerical model. The results show that steady-state vibrations can be prevented by using solutions which provide a sufficient amount of structural damping.

Original language	English
Title of host publication	Proceedings of the 4th International Offshore and Polar Engineering Conference
Editors	Jin S. Chung, Karel Karal, Wataru Koteryama
Place of Publication	Cupertino
Publisher	International Society of Offshore and Polar Engineers ISOPE
Pages	534-539
Volume	2
ISBN (Print)	1-880653-10-9
Publication status	Published - 1994
MoE publication type	A4 Article in a conference publication
Event	4th International Offshore and Polar Engineering Conference - Osaka, Japan Duration: 10 Apr 1994 → 15 Apr 1994

Conference

Conference	4th International Offshore and Polar Engineering Conference
Country/Territory	Japan
City	Osaka
Period	10/04/94 → 15/04/94

Cite this

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title = "Mitigation of steady-state vibrations induced by ice",

abstract = "Offshore structures are prone to ice-induced vibrations when they are subjected to the action of drifting level ice. These vibrations may cause liquefaction of the seabed. They may also cause fatigue problems and have adverse effects on the working conditions on an offshore structure. This paper describes first a mechanism in ice-structural interaction, which is responsible for the generation of steady-state vibrations. Second, parametric studies are carried out with a numerical model. The results show that steady-state vibrations can be prevented by using solutions which provide a sufficient amount of structural damping.",

author = "Tuomo K{\"a}rn{\"a}",

year = "1994",

language = "English",

isbn = "1-880653-10-9",

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editor = "Chung, \{Jin S.\} and Karel Karal and Wataru Koteryama",

booktitle = "Proceedings of the 4th International Offshore and Polar Engineering Conference",

publisher = "International Society of Offshore and Polar Engineers ISOPE",

address = "United States",

note = "4th International Offshore and Polar Engineering Conference ; Conference date: 10-04-1994 Through 15-04-1994",

}

Kärnä, T 1994, Mitigation of steady-state vibrations induced by ice. in JS Chung, K Karal & W Koteryama (eds), Proceedings of the 4th International Offshore and Polar Engineering Conference. vol. 2, International Society of Offshore and Polar Engineers ISOPE, Cupertino, pp. 534-539, 4th International Offshore and Polar Engineering Conference, Osaka, Japan, 10/04/94.

Mitigation of steady-state vibrations induced by ice. / Kärnä, Tuomo.
Proceedings of the 4th International Offshore and Polar Engineering Conference. ed. / Jin S. Chung; Karel Karal; Wataru Koteryama. Vol. 2 Cupertino: International Society of Offshore and Polar Engineers ISOPE, 1994. p. 534-539.

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

TY - GEN

T1 - Mitigation of steady-state vibrations induced by ice

AU - Kärnä, Tuomo

PY - 1994

Y1 - 1994

N2 - Offshore structures are prone to ice-induced vibrations when they are subjected to the action of drifting level ice. These vibrations may cause liquefaction of the seabed. They may also cause fatigue problems and have adverse effects on the working conditions on an offshore structure. This paper describes first a mechanism in ice-structural interaction, which is responsible for the generation of steady-state vibrations. Second, parametric studies are carried out with a numerical model. The results show that steady-state vibrations can be prevented by using solutions which provide a sufficient amount of structural damping.

AB - Offshore structures are prone to ice-induced vibrations when they are subjected to the action of drifting level ice. These vibrations may cause liquefaction of the seabed. They may also cause fatigue problems and have adverse effects on the working conditions on an offshore structure. This paper describes first a mechanism in ice-structural interaction, which is responsible for the generation of steady-state vibrations. Second, parametric studies are carried out with a numerical model. The results show that steady-state vibrations can be prevented by using solutions which provide a sufficient amount of structural damping.

M3 - Conference article in proceedings

SN - 1-880653-10-9

VL - 2

SP - 534

EP - 539

BT - Proceedings of the 4th International Offshore and Polar Engineering Conference

A2 - Chung, Jin S.

A2 - Karal, Karel

A2 - Koteryama, Wataru

PB - International Society of Offshore and Polar Engineers ISOPE

CY - Cupertino

T2 - 4th International Offshore and Polar Engineering Conference

Y2 - 10 April 1994 through 15 April 1994

ER -

Mitigation of steady-state vibrations induced by ice

Abstract

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