Application of the Vibration Decay Test to Transmission Line Conductors

Hard, A. R.; Holben, R. D.

doi:10.1109/tpas.1967.291835

Cited by 18 publications

(1 citation statement)

References 3 publications

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“…Stay cables are important load carrying structural elements on cable-stayed bridges. Due to high tension, friction between the composing wires or strands of stay cables is changed considerably which significantly reduces their structural damping [ 1 – 3 ]. This, along with their long and flexible feature, renders cables on cable-stayed bridges very vulnerable to various dynamic excitations.…”

Section: Introductionmentioning

confidence: 99%

Impact of Cross‐Tie Properties on the Modal Behavior of Cable Networks on Cable‐Stayed Bridges

Ahmad

Cheng

Ghrib

2015

The Scientific World Journal

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Dynamic behaviour of cable networks is highly dependent on the installation location, stiffness, and damping of cross-ties. Thus, these are the important design parameters for a cable network. While the effects of the former two on the network response have been investigated to some extent in the past, the impact of cross-tie damping has rarely been addressed. To comprehend our knowledge of mechanics associated with cable networks, in the current study, an analytical model of a cable network will be proposed by taking into account both cross-tie stiffness and damping. In addition, the damping property of main cables in the network will also be considered in the formulation. This would allow exploring not only the effectiveness of a cross-tie design on enhancing the in-plane stiffness of a constituted cable network, but also its energy dissipation capacity. The proposed analytical model will be applied to networks with different configurations. The influence of cross-tie stiffness and damping on the modal response of various types of networks will be investigated by using the corresponding undamped rigid cross-tie network as a reference base. Results will provide valuable information on the selection of cross-tie properties to achieve more effective cable vibration control.

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Section: Introductionmentioning

confidence: 99%

Impact of Cross‐Tie Properties on the Modal Behavior of Cable Networks on Cable‐Stayed Bridges

Ahmad

Cheng

Ghrib

2015

The Scientific World Journal

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A new approach to the definition of self-damping for stranded cables

2016

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Aim of the paper is to propose a new approach for the determination of the so termed self-damping, or internal damping, of metallic cables. The formulation is developed starting from a recent mechanical model of a strand, from which the hysteretic bending behavior of stranded cables is derived. Each wire of the cable is individually modeled as an elastic curved thin rod. A kinematic model is defined to relate the axial strain and bending curvature of the strand to the generalized strains of the wire. The interaction among the wires belonging to adjacent layers is then studied by neglecting deformations of the contact surfaces and assuming a classic Amontons–Coulomb friction law. In the adopted strand mechanical model a function is derived, which defines the domain of admissible values of the wire axial force to prevent sliding. A simplified model of the cable hysteretic bending behavior is then derived from the cyclic response predicted with the adopted mechanical formulation of the strand, leading to a closed-form upper-bound estimate of the energy dissipated when the cable cross section is subjected to alternate bending. This expression is used as the starting block for the definition of an analytical equation giving an upper-bound estimate of the cable self-damping. The predictions of the proposed model are compared to available data resulting from experiments and empirical literature equations: the comparison is extended to a wide range of strands and parameters that characterize practically most of the configuration commonly used in overhead electrical lines

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Experimental and Analytical Investigation of Carbon Fiber Cable Vibration Damping

Qiu

Maji

2014

Exp Mech

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Application of the Vibration Decay Test to Transmission Line Conductors

Cited by 18 publications

References 3 publications

Impact of Cross‐Tie Properties on the Modal Behavior of Cable Networks on Cable‐Stayed Bridges

Impact of Cross‐Tie Properties on the Modal Behavior of Cable Networks on Cable‐Stayed Bridges

A new approach to the definition of self-damping for stranded cables

Experimental and Analytical Investigation of Carbon Fiber Cable Vibration Damping

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