Open AccessActive vibration suppression of Bernoulli–Euler beam: experiment and numerical simulation
Author(s) -
Aleksandr V. Fedotov
Publication year - 2019
Publication title -
cybernetics and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.267
H-Index - 8
eISSN - 2226-4116
pISSN - 2223-7038
DOI - 10.35470/2226-4116-2019-8-4-228-234
Subject(s) - cantilever , control theory (sociology) , actuator , vibration , computer simulation , vibration control , beam (structure) , modal , finite element method , computer science , bernoulli's principle , control system , control (management) , engineering , structural engineering , simulation , acoustics , physics , materials science , electrical engineering , artificial intelligence , polymer chemistry , aerospace engineering
In order to design the most effective systems of vibration control of a distributed elastic object, it is necessary to have a model of this object, which would allow one to obtain the control results numerically without experiment. This gives an opportunity to compare the results of different control systems with each other and choose the most efficient ones. The paper is concerned with numerical simulation of the results of experimental study on suppression of forced vibrations of a cantilever metal beam with piezoelectric sensors and actuators by finite element method. The new designed control systems are based upon the results of numerical simulation and turn out to be more effective than those tested in the experiment. The numerical results previously received for modal control systems were significantly improved by using the optimization procedure, which allows one to select the optimal parameters of the filters used in the feedback loops of the designed control systems.