Open Access
ARTICLE
Active Control of a Reduced Model of a Smart Structure
N. Ghareeb1, R. Schmidt1
1 RWTH Aachen University of Technology, Aachen, Germany.
Structural Longevity 2013, 10(3), 177-199. https://doi.org/10.3970/sl.2013.010.177
Abstract
Control of vibration plays an important role in the performance of
mechanical systems. Moreover, the advances in active materials have made it possible to integrate sensing, actuation and control of unwanted vibration in the design
of the structure. In this work, a linear control system based on the Lyapunov stability theorem is used to attenuate the vibration of a cantilevered smart beam excited
by its first eigenmode. An optimal finite element (
FE) model of the smart beam is
created with the help of experimental data. This model is then reduced to a super
element (
SE) model containing a finite number of degrees of freedom (
DOF). The
damping characteristics are investigated and damping coefficients are calculated
and inserted into the model. The controller is applied directly to the SE model
and to the extracted state-space (
SS) representation of the same structure. Finally,
results are presented and compared.
Keywords
Cite This Article
Ghareeb, N., Schmidt, R. (2013). Active Control of a Reduced Model of a Smart Structure.
Structural Longevity, 10(3), 177–199.