Vibration Control of Structures with a Novel Semi-Active Tuned Mass Damper Using Wavelet Transform
Abstract eng: An innovative design for a semi-active tuned mass damper (SATMD) with variable stiffness has been proposed for structural vibration control. The stiffness of the device can be continuously varied within a certain range using the variations of moment of inertia of an area. This adaptive tuned mass damper (TMD) is capable of real-time retuning and operates effectively in broad band frequency excitations. Employing the numerical simulations, the responses of a SDOF model coupled with the SATMD subjected to a seismic record are obtained. Wavelet transform is used to detect the instantaneous frequency of the excitation. The control effectiveness of the proposed SATMD is evaluated by comparing the results with those of the system coupled with a TMD. It is found that, the vibration suppression by the proposed SATMD is significantly superior to that of a conventional passive TMD.
Contributors:
Publisher:
National Technical University of Athens, 2011
Conference Title:
Conference Title:
COMPDYN 2011 - 3rd International Thematic Conference
Conference Venue:
Island of Corfu (GR)
Conference Dates:
2011-05-25 / 2011-05-28
Rights:
Text je chráněný podle autorského zákona č. 121/2000 Sb.
Record appears in:
Record created 2016-11-14, last modified 2016-11-14
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