Wave Absorption Control of Rope System by Using Impedance Matching Condition

Abstract

In this paper treated is the impedance-matching wave absorption control of rope system near fixed end. The rope system is approximated by finite difference method and the end element is controlled to absorb the vibration energy of the whole rope system. The imaginary system in a controller that is constructed by the same elements as those of the controlled system and has the impedance matching condition at the end is virtually connected to the end element by the control force. The simulation has confirmed that the finite difference approximated system based control has enough effect to the distributed rope system and that the superior damping effect of wave absorption than that of the normal velocity-proportional damping near fixed end. The results have also verified by the experiment.