Author
J.G. Allnutt
Bio: J.G. Allnutt is an academic researcher. The author has contributed to research in topics: Damper & Vibration. The author has an hindex of 1, co-authored 1 publications receiving 9 citations.
Topics: Damper, Vibration, Tuned mass damper, Stockbridge damper, Damping torque
Papers
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01 Oct 1974
TL;DR: In this article, a new method is presented for determining the effectiveness of dampers used to suppress aeolian vibration on overhead lines, applied to a Stockbridge damper and a simple picture is presented of the way in which this damper works.
Abstract: A new method is presented for determining the effectiveness of dampers used to suppress aeolian vibration on overhead lines. The method is applied to a Stockbridge damper and a simple picture is presented of the way in which this damper works. A second type of vibration damper is also considered, to demonstrate the way in which the performance of different dampers can be evaluated and compared using the new method.
9 citations
Cited by
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TL;DR: In this article, the dampers are characterized by means of a 2×2 complex impedance matrix which can be experimentally determined in the laboratory and which includes the effects of the rotatory motion of the clamp.
76 citations
01 May 1980
TL;DR: In this article, the authors present a Weg eingeschlagen: Dampfungs-and Windleistung werden fur das halbunendlich bzw. unendlich lange Seil berechnet, was infolge des sehr dichten Spektrums der Eigenfrequenzcn des endlichen Seiles zu guten Ergebnissen fuhrt.
Abstract: Bei der Berechnung winderregter Schwingungen von Leiterseilen wird haufig das Ritz-Verfahren angewendet oder auch mit finiten Elementen gerechnet, wobei wegen der hohen Frequenzen der beobachteten Schwingungen mehrere hundert oder tausend Terme zu berucksichtigen sind. Hier wird ein anderer Weg eingeschlagen: Dampfungs- und Windleistung werden fur das halbunendlich bzw. unendlich lange Seil berechnet, was infolge des sehr dichten Spektrums der Eigenfrequenzcn des endlichen Seiles zu guten Ergebnissen fuhrt. Die Schwingungsamplituden folgen dann aus einer Energiebilanz. Mit Hilfe der Methode der singularen Storungen werden sehr einfache Formeln fur die Biegewechseldehnungen im Seil angegeben.
33 citations
TL;DR: In this article, the effect of dampers on the maximum strain produced in transmission lines with and without a damper has been studied, and a comparative study of the maximum strains produced is also made for various wind power input assumptions.
25 citations
15 citations
TL;DR: In this article, new dampers and damping wires for groundwires were developed and configured, based upon analysis of the characteristics of aeolian vibration, and simulation tests were conducted according to the energy balance principle (EBP).
11 citations