Steady-state vibration mitigation in a piecewise linear beam system using PD control
PD-control (control using Proportional and/or Derivative feedback) is applied to a piecewise linear beam system for steady-state vibration amplitude mitigation. Two control objectives are formulated: 1) to reduce the transversal vibration amplitude of the midpoint of the beam at the frequency where the first harmonic resonance occurs, and 2) to achieve this in a larger excitation frequency range. The vibration reduction that is achieved in simulations and validated by experiments is very significant for both objectives. Current results obtained with active PD-control are compared with earlier results obtained using a passive Dynamic Vibration Absorber.