000019504 001__ 19504
000019504 005__ 20170118182321.0
000019504 04107 $$aeng
000019504 046__ $$k2017-01-09
000019504 100__ $$aLiu, Zhongpo
000019504 24500 $$aInvestigation Into Vibration Control Effect of Track Nonlinear Energy Sink Attached on a Frame Building

000019504 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000019504 260__ $$b
000019504 506__ $$arestricted
000019504 520__ $$2eng$$aNonlinear energy sinks (NES) are efficient vibration control devices. Its application has been studied in mechanical, automobile and aerospace engineering and made some achievements. However, there are little applications in civil engineering. To validate its vibration control effects on building structures, a series of shaking table tests were conducted on a five-story steel frame which is five meters high and six tons weight. Track of the NES were installed on the roof of the frame with rigid connections and mass of the NES was constrained to slide along the track through use of wheels which were made of either steel or rubber. Five earthquake waves with different frequency spectrums were selected to excite the frame coupled with NES under minor, moderate and major levels. Accelerations and displacements on each story of the frame were measured, recorded and evaluated. The experimental results demonstrate that with small mass ratio (2%) of main structure, NES has good performance in reducing the dynamic responses of the frame under seismic excitations. In the time domain analysis, it is shown that NES can attenuate the displacements, accelerations and RMS of the frame. NES exhibits wide-band frequency vibration controlling attributes that responses of the frame are reduced in multiple vibration modes after the acceleration response data were processed in the frequency domain. Comparisons of vibration reduction capability are made between NES with steel wheels and rubber wheels, and it is verified that different damping of NES makes a difference to the effect of vibration control.

000019504 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000019504 653__ $$anonlinear energy sink, shake table test, dynamic response, structural vibration control

000019504 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000019504 720__ $$aLiu, Zhongpo$$iLu, Xilin
000019504 8560_ $$ffischerc@itam.cas.cz
000019504 8564_ $$s787792$$uhttps://invenio.itam.cas.cz/record/19504/files/378.pdf$$yOriginal version of the author's contribution as presented on USB, paper 378.
000019504 962__ $$r16048
000019504 980__ $$aPAPER