%0 Journal Article
%T Researches Regarding the Effect of Nitinol Vibration Damper Applied to Infrastructures
%A Daniel Amariei
%A Gilbert Rainer Gillich
%A Ionica Negru
%J Analele Universit£ż£żii Eftimie Murgu Re£żi£ża. Fascicula de Inginerie
%D 2009
%I Eftimie Murgu University of Resita
%X Many of the performed researches all around the world aim to develop advanced technologies in order to enhance the performances of the in-frastructure systems, different from the actual ones, fact which involves multidisciplinary research (IT, sensoring, electronics, smart materials and others), aiming to assist engineers in realizing full benefits of struc-tural health monitoring. The paper presents a preliminary feasibility study of a system that can be used for damping of structural vibrations. Thus, shape memory alloys (SMA) components can affect through two mechanisms the structure's vibrations. The stresses from a SMA ele-ment that realize phase transformations, as a result of vibrations, have an effect on the frequency-amplitude characteristics. In addition, a dis-sipation of energy due to hysteresis in a SMA element can reduce the natural frequency and affect forced vibrations.
%K vibration
%K dampers
%K shape memory alloys
%K infrastructures
%K frequency
%U http://anale-ing.uem.ro/2009/2009_a1.pdf