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Title: Dynamic characteristics of stay cables with inerter dampers
Authors: Shi, X 
Zhu, SY 
Keywords: Inerter damper
Stay cable
Vibration control
Damping ratio
Issue Date: 2018
Publisher: Academic Press
Source: Journal of sound and vibration, 9 June 2018, v. 423, p. 287-305 How to cite?
Journal: Journal of sound and vibration 
Abstract: This study systematically investigates the dynamic characteristics of a stay cable with an inerter damper installed close to one end of a cable. The interest in applying inerter dampers to stay cables is partially inspired by the superior damping performance of negative stiffness dampers in the same application. A comprehensive parametric study on two major parameters, namely, inertance and damping coefficients, are conducted using analytical and numerical approaches. An inerter damper can be optimized for one vibration mode of a stay cable by generating identical wave numbers in two adjacent modes. An optimal design approach is proposed for inerter dampers installed on stay cables. The corresponding optimal inertance and damping coefficients are summarized for different damper locations and interested modes. Inerter dampers can offer better damping performance than conventional viscous dampers for the target mode of a stay cable that requires optimization. However, additional damping ratios in other vibration modes through inerter damper are relatively limited.
ISSN: 0022-460X
EISSN: 1095-8568
DOI: 10.1016/j.jsv.2018.02.042
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