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Active stiffness control of wind‐rain‐induced vibration of prototype stay cable
Author(s) -
Wang L. Y.,
Xu Y. L.
Publication year - 2007
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/nme.2152
Subject(s) - inertia , stiffness , vibration , modal , bridge (graph theory) , structural engineering , coupling (piping) , vibration control , engineering , control theory (sociology) , control (management) , marine engineering , computer science , acoustics , physics , mechanical engineering , materials science , classical mechanics , medicine , artificial intelligence , polymer chemistry
The cables in a cable‐stayed bridge usually possess low inherent damping and are prone to wind‐induced, traffic‐induced, and wind‐rain‐induced vibrations. This paper establishes an active control algorithm using the stiffness control method to suppress wind‐rain‐induced vibration of prototype stay cables. By neglecting the axial inertia force and the modal coupling, the governing equations of motion of wind‐rain‐induced vibration control of prototype stay cables with active stiffness control algorithm are first derived. The fourth‐order Runge–Kutta method is then introduced to find the numerical solutions to the problem. Extensive parameter studies have been carried out for investigating the features of the control method as a design guideline. Copyright © 2007 John Wiley & Sons, Ltd.