Experimental verification of semiactive damping of stay cables

R. E. Christenson; B. F. Spencer; E. A. Johnson

doi:10.1109/ACC.2001.945786

Experimental verification of semiactive damping of stay cables

R. E. Christenson, B. F. Spencer, E. A. Johnson

Research output: Contribution to journal › Article › peer-review

Abstract

Stay cables, such as are used in cable-stayed bridges, are prone to vibration due to their low inherent damping characteristics. Transversely-attached passive viscous dampers have been implemented in many bridges to dampen such vibration. However, only minimal damping can be added if the attachment point is close to the deck. For longer bridge cables, passive damping is insufficient. A recent study by the authors demonstrated that "smart" semiactive damping can provide significantly superior supplemental damping. This paper experimentally verifies a smart damping control strategy for an inclined flat-sag cable. Cable response is seen to be substantially reduced by the smart damper.

Original language	English (US)
Pages (from-to)	5058-5063
Number of pages	6
Journal	Proceedings of the American Control Conference
Volume	6
DOIs	https://doi.org/10.1109/ACC.2001.945786
State	Published - 2001
Externally published	Yes

Keywords

Cable vibration
Experimental verification
Smart damping
Structural control

ASJC Scopus subject areas

Electrical and Electronic Engineering

Online availability

10.1109/ACC.2001.945786

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language = "English (US)",

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AU - Spencer, B. F.

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N2 - Stay cables, such as are used in cable-stayed bridges, are prone to vibration due to their low inherent damping characteristics. Transversely-attached passive viscous dampers have been implemented in many bridges to dampen such vibration. However, only minimal damping can be added if the attachment point is close to the deck. For longer bridge cables, passive damping is insufficient. A recent study by the authors demonstrated that "smart" semiactive damping can provide significantly superior supplemental damping. This paper experimentally verifies a smart damping control strategy for an inclined flat-sag cable. Cable response is seen to be substantially reduced by the smart damper.

AB - Stay cables, such as are used in cable-stayed bridges, are prone to vibration due to their low inherent damping characteristics. Transversely-attached passive viscous dampers have been implemented in many bridges to dampen such vibration. However, only minimal damping can be added if the attachment point is close to the deck. For longer bridge cables, passive damping is insufficient. A recent study by the authors demonstrated that "smart" semiactive damping can provide significantly superior supplemental damping. This paper experimentally verifies a smart damping control strategy for an inclined flat-sag cable. Cable response is seen to be substantially reduced by the smart damper.

KW - Cable vibration

KW - Experimental verification

KW - Smart damping

KW - Structural control

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ER -

Experimental verification of semiactive damping of stay cables

Abstract

Keywords

ASJC Scopus subject areas

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