Reduction of vibration on a cantilever Timoshenko beam subjected to repeated sequence of excitation with magnetorheological outriggers

Summary This paper deals with the statistical effects of an outrigger system on a cantilever beam under seismic excitation. The nonstationary random approach is employed to simulate seismic events. The Timoshenko beam approach is used to model the frame‐core tube linked at a point of its length by t...

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Bibliographic Details
Published inThe structural design of tall and special buildings Vol. 26; no. 18
Main Authors Ndemanou, Buris Peggy, Fankem, Eliane Raïssa, Nana Nbendjo, Blaise Romeo
Format Journal Article
LanguageEnglish
Published Oxford Wiley Subscription Services, Inc 25.12.2017
Subjects
Cantilever beams
Cantilevers
Computer simulation
Control algorithms
Control stability
Control systems
Control theory
Lyapunov stability
MR dampers
nonstationary random
outriggers
peak RMS
Reduction
Seismic activity
Seismic response
Seismic stability
Timoshenko beam
Vibration
Vibration mode
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Summary:Summary This paper deals with the statistical effects of an outrigger system on a cantilever beam under seismic excitation. The nonstationary random approach is employed to simulate seismic events. The Timoshenko beam approach is used to model the frame‐core tube linked at a point of its length by the damped outriggers, therefore are connected vertically two magnetorheological damper devices. The peak root‐mean‐square values of displacement responses is employed as a best measure effective to specify the optimal locations of outriggers according to different vibration modes. To evaluate the performance of the control system, the control algorithm based on Lyapunov stability theory is adopted to seek the input voltage leading to the reduction of vibration.
ISSN:1541-7794
1541-7808
DOI:10.1002/tal.1393