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Reduced order control for wind‐induced vibrations of tall buildings
Author(s) -
Li Q. S.
Publication year - 2003
Publication title -
the structural design of tall and special buildings
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.895
H-Index - 43
eISSN - 1541-7808
pISSN - 1541-7794
DOI - 10.1002/tal.220
Subject(s) - tuned mass damper , vibration , vibration control , damper , reduction (mathematics) , control (management) , wind engineering , structural engineering , order (exchange) , control system , engineering , control theory (sociology) , computer science , physics , mathematics , acoustics , geometry , electrical engineering , finance , artificial intelligence , economics
The design of a structural control system for a tall building may not be easy owing to the large number of degrees of freedom involved. Obviously, it is much easier to design a structural control system for the reduced‐order system than for the full‐order system. Model reduction is thus useful when control systems are implemented in civil engineering structures. A reduced‐order modelling technology for vibration control of wind‐excited tall buildings is presented and its performance is studied. The important issues associated with wind‐induced vibrations, model condensations and reduced‐order control are addressed. Finally, a numerical example, a tall building with an active tuned mass damper or a passive tuned mass damper, is given to show the efficiency of the reduced‐order control technique. Copyright © 2003 John Wiley & Sons, Ltd.