Vibration confinement in trusses

Muhammad A. Hawwa; Reyolando M. Brasil

doi:10.1061/(ASCE)0733-9399(1996)122:3(286)

Vibration confinement in trusses

Muhammad A. Hawwa, Reyolando M. Brasil

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

1 Scopus citations

Abstract

The mode-localization phenomenon is here proposed as a mechanism for suppressing undesired oscillations of trusses. Sample trusses consisting of repeated unit cells are designed to have weak intermediate member(s) in addition to geometric disorders. These irregularities lead to the confinement of motion to a limited part of the structure. The results of a finite-element analysis show the natural frequencies and the relative amplitudes of mode shapes as functions of a disorder parameter.

Original language	English
Pages (from-to)	286-290
Number of pages	5
Journal	Journal of Engineering Mechanics
Volume	122
Issue number	3
DOIs	https://doi.org/10.1061/(ASCE)0733-9399(1996)122:3(286)
State	Published - 1 Mar 1996
Externally published	Yes

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering

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10.1061/(ASCE)0733-9399(1996)122:3(286)

Cite this

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title = "Vibration confinement in trusses",

abstract = "The mode-localization phenomenon is here proposed as a mechanism for suppressing undesired oscillations of trusses. Sample trusses consisting of repeated unit cells are designed to have weak intermediate member(s) in addition to geometric disorders. These irregularities lead to the confinement of motion to a limited part of the structure. The results of a finite-element analysis show the natural frequencies and the relative amplitudes of mode shapes as functions of a disorder parameter.",

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AB - The mode-localization phenomenon is here proposed as a mechanism for suppressing undesired oscillations of trusses. Sample trusses consisting of repeated unit cells are designed to have weak intermediate member(s) in addition to geometric disorders. These irregularities lead to the confinement of motion to a limited part of the structure. The results of a finite-element analysis show the natural frequencies and the relative amplitudes of mode shapes as functions of a disorder parameter.

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U2 - 10.1061/(ASCE)0733-9399(1996)122:3(286)

DO - 10.1061/(ASCE)0733-9399(1996)122:3(286)

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Vibration confinement in trusses

Abstract

ASJC Scopus subject areas

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