Měření vibrací mechanických struktur

Abstract

The bachelor thesis deals with the measurement of active vibration control of cantilever beam. The aim was to build speed control loop with feedback, where the measuring element is a piezoelectric accelerometer. Compared with the original assembly, with the laser position sensor and position feedback, the new setting controls higher frequencies, and increases the damping coefficient. The paper also proposes a method for the elimination of unstable modes in the management process at certain natural frequencies of vibration of the beam. The actuator is realized in the form of piezoactuator. The controller design was implemented in MATLAB - Simulink, which was implemented in digital signal processor dSPACE.