A stochastic approach to cable dynamics with moving rivulets

Cao, D. Q. and Tucker, R. W. and Wang, C. (2003) A stochastic approach to cable dynamics with moving rivulets. Journal of Sound and Vibration, 268 (2). pp. 291-304. ISSN 0022-460X

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This article constructs a stochastic model for the response of stay cables of cable-stayed bridges to the combined effect of wind and rain. It describes a spring-mounted section model of a stay cable in a steady wind where aerodynamic forces are modified by the dynamics of a mobile liquid rivulet. The motion of the rivulet is described by a simple stochastic process that, together with aerodynamic forces, models the complex fluid–structure interaction. Based on measured data for drag and lift coefficients and a static rivulet location, an analysis of the model suggests a new stochastic excitation mechanism for the rain–wind induced vibrations of stay cables.

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Journal Article
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Journal of Sound and Vibration
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12 Aug 2015 13:26
Last Modified:
21 Nov 2022 17:56