Brief Report
Jul 1975
Parametric Study of Vibration in Articulated Towers
Authors: Kenneth C. Johns and Colin L. KirkAuthor Affiliations
Publication: Journal of the Structural Division
Volume 101, Issue 7
Abstract
This note reports on the possibility of allowing some extra movement in a tower-like structure. This movement would activate a damper and thus dissipate energy and hopefully reduce response. Examination of a simple single degree-of-freedom bar and spring mechanism showed that it was actually possible, under certain circumstances, to reduce dynamic response by the introduction of an additional degree-of-freedom, e.g., a hinge, equipped with finite stiffness and viscous damping. The idea is not obvious, but is attractive, since no extra weight is added, and passive viscous dampers, being unsophisticated, seem reliable enough.
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Published In
Journal of the Structural Division
Volume 101 • Issue 7 • July 1975
Pages: 1631 - 1634
Copyright
© 1975 American Society of Civil Engineers.
History
Published in print: Jul 1975
Published online: Feb 1, 2021
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Authors
Affiliations
Kenneth C. Johns
Asst. Prof., Dept. of Civ. Engrg., Univ. of Sherbrooke, Sherbrooke, Québec, Canada
Colin L. Kirk
Sr. Lect., Struct. and Aerospace Dynamics, Cranfield Inst. of Tech., Cranfield, Bedford, England
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