Experimental study on the effectiveness of polymer dampers in reduction of structural vibrations

Natalia Lasowicz; Arkadiusz Kwiecień; Bogusław Zając; Robert Jankowski

Experimental study on the effectiveness of polymer dampers in reduction of structural vibrations

Abstract

Vibrations of civil engineering structures, generated by dynamic loads, may be very dangerous to the structures themselves as well as may have significant influence on human perception and comfort. A number of different methods have been proposed in order to minimize such situations. This concern newly designed structures as well as those which dynamic properties have to be modified due to problems with excessive vibrations. One of the methods is to increase stiffness of the structure so as to avoid resonance with the excitation. Another approach assumes installation of additional dampers so as to increase dissipation of energy during vibrations. In this paper, an idea of using polymer dampers, in the form of tapes, is proposed. An experimental study on aluminum cantilevered beam has been conducted. Two different models have been considered and analyzed. One of them presents a plain cantilevered beam, while the second one considers beam with the polymer tape attached. The behavior of both models under different loads has been investigated. Two cases have been analyzed and damping ratios have been identified. The results of the study clearly show that the response of the beam with and without polymer damper is substantially different. They indicate that the application of the polymer tape may lead to even five times higher values of damping ratio. Therefore, the method can be considered as an effective one in reduction of structural vibrations.

Authors (4)

Natalia Lasowicz dr inż.
Arkadiusz Kwiecień
- Politechnika Krakowska Wydział Inżynierii Lądowej
Bogusław Zając
- Politechnika Krakowska Wydział Inżynierii Lądowej
Robert Jankowski prof. dr hab. inż.

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Category:: Conference activity
Type:: materiały konferencyjne indeksowane w Web of Science
Title of issue:: 9th International Conference on Structural Dynamics (EURODYN) strony 1623 - 1630
ISSN:: 2311-9020
Language:: English
Publication year:: 2014
Bibliographic description:: Lasowicz N., Kwiecień A., Zając B., Jankowski R..: Experimental study on the effectiveness of polymer dampers in reduction of structural vibrations, W: 9th International Conference on Structural Dynamics (EURODYN), 2014, EUROPEAN ASSOC STRUCTURAL DYNAMICS, C/O LEHRSTUHL BAUMECHANIK, TECHNISCHE UNIV MUNCHEN, ARCISSTRASSE 21, MUNICH, D-80290, GERMANY,.
Verified by:: Gdańsk University of Technology