کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9640688 509817 2005 27 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Nonlinear dynamics of cable stays. Part 2: stochastic cable support excitation
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Nonlinear dynamics of cable stays. Part 2: stochastic cable support excitation
چکیده انگلیسی
In this paper, an extensive behavioural study of cable vibrations, induced by in-plane stochastic cable-stayed structural vibrations, is made. Finite element modelling (FEM) and analysis (FEA) is used to determine in-plane and out-of-plane cable displacements induced by stochastic cable end displacements. The effects of stochastic cable support displacements, with abrupt and gradual transients, are studied. Regions of large-amplitude cable vibrations, induced by stochastic cable end displacements, are compared with those found from sinusoidal cable end displacements. The results show that, together with important similarities in cable response, there are also important differences in cable response between sinusoidal and stochastic cable support excitation. Differences in cable response amplitudes are found and discussed. It is also found that “cable-stiffening” occurs, for specific cable excitation parameters, as it does for sinusoidal cable support excitation, but to a lesser extent. Throughout the analyses, maximum cable stresses are calculated and, in some cases, are found to be near that required for cable material yielding.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Sound and Vibration - Volume 281, Issues 3–5, 22 March 2005, Pages 565-591
نویسندگان
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