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The basic engineering approach to the control of vibration of overhead conductors is to compare, at an acceptable amplitude, the wind power input with the power dissipated by the conductor and supporting structures and hardware. The difference between these two quantities is the amount of power that ideally should be dissipated by a vibration damping system, when attached to a single conductor at one or more appropriate locations. This guide describes the procedures for determining the performance of vibration damping systems. It is hoped that the guide will assist in standardizing the methods involved and that it will result in more reliable basic information on damper dissipation characteristics, on a basis that is consistent with the technical requirements, and that is universally recognized and accepted.

Damping (Mechanics)

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The current methodologies, including apparatus, procedures, and measurement accuracies, for determining the dynamic characteristics of vibration dampers and damping systems are described. Some basic guidance is provided regarding a given method¿s strengths and weaknesses. The methodologies and procedures described are applicable to indoor testing only. Keywords: aeolian, decay method, forced response method, inverse standing wave ratio (ISWR) method, overhead conductors, power dissipation characteristics, power method, vibration dampers.

Vibration. --- Damping (Mechanics)

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Design and deploy advanced vibration protection systems based on elastic composites under post-buckling, with this essential reference. Methods for designing vibration protection systems with negative and quasi-zero stiffness are formulated, explained, and demonstrated in practice. All key steps of the system design are covered, including the type and number synthesis, modelling and studying of stress-strain state under post-buckling of elastic composite designs, chaotic dynamics and stability conditions, real-time dimensioning, and active motion control. In addition to coverage of underlying theory, the use in helicopters, buses, railroad vehicles, construction equipment and agricultural machinery are included. An excellent reference for researchers and practicing engineers, as well as a tutorial for university students and professors with an interest in study, development and application of alternative methods of vibration protection anywhere.

Vibration. --- Damping (Mechanics)

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Vibration. --- Damping (Mechanics). --- Friction.

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Damping (Mechanics) --- Vibration