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Optimal vibration abatement of mechanical systems
Author(s) -
Ebrahimi N. D.
Publication year - 1989
Publication title -
earthquake engineering and structural dynamics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.218
H-Index - 127
eISSN - 1096-9845
pISSN - 0098-8847
DOI - 10.1002/eqe.4290180405
Subject(s) - vibration , degrees of freedom (physics and chemistry) , control theory (sociology) , amplitude , vibration control , mechanical system , optimal control , engineering , computer science , mathematics , mathematical optimization , physics , control (management) , mechanical engineering , acoustics , artificial intelligence , quantum mechanics
Abstract In this paper, a method is presented for forced vibration suppression of multi‐degree‐of‐freedom systems with damping. The technique pursued in this investigation is based on applying control forces at a certain number of the system's degrees of freedom. The problem is organized as an unconstrained, non‐linear optimization formulation so that the peak vibration amplitudes of a certain number of degrees of freedom would be minimized. An efficient mathematical programming algorithm is used to solve this optimization problem numerically. It will be shown that the scheme illustrated in this paper is remarkably effective in reducing the vibration of the system. In particular, the vibration amplitudes at selected degrees of freedom may be diminished substantially.