Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/29026
Title: Forced vibration studies of sagged cables with oil damper using a hybrid method
Authors: Xu, YL 
Yu, Z
Ko, JM 
Keywords: Damper
Frequency crossover
Hybrid method
Sagged cable
Vibration mitigation
Issue Date: 1998
Publisher: Pergamon Press
Source: Engineering structures, 1998, v. 20, no. 8, p. 692-705 How to cite?
Journal: Engineering structures 
Abstract: This paper presents forced vibration studies of sagged cables with discrete oil dampers under harmonic excitation using an analytical/numerical hybrid method. The suggested hybrid method can take account of cable sag, cable internal damping, damper stiffness, damper mass, and others. The results show that an oil damper with appropriate parameters selected can effectively suppress the vibration of a cable under harmonic excitation. The cable sag, damper stiffness, cable internal damping, and others do affect damper performance. In particular, if a cable has symmetric modes of vibration near the frequency crossover points excited by harmonic loading, the damper may lose its function to suppress these modes of vibration. The possible reasons behind this and the measures to overcome the frequency crossover problem are explored and some preliminary results are presented.
URI: http://hdl.handle.net/10397/29026
ISSN: 0141-0296
EISSN: 1873-7323
DOI: 10.1016/S0141-0296(97)00100-4
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