Abstract
The study aimed to present the features of a 2-DOF vibration reduction system (VRS) equipped with a linear electrodynamic motor in passive, semi-active and active mode. At first, the VRS model was formulated. Then, simulation tests of the VRS were conducted to distinguish its most advantageous features in each mode and to analyze dynamic performance and energy consumption. Next, the VRS was experimentally tested to evaluate its effectiveness in each mode for the assumed excitations and to compare tests results against simulation data. In active mode, a sliding mode algorithm was employed for motor control, while in semi-active mode, the equivalent damping coefficient analysis was used.
Highlights
The division of vibration reduction methods into passive, active and semi-active is based on the possibility of using an additional energy source
Many researchers focus on an analysis of vibration reduction systems operating in only one mode and do not consider the benefits resulting from the possibility of their combination
The purpose of the present work is to develop a vibration reduction system (VRS) operating in hybrid mode, taking into account the limitation resulting from the finite capacity of the energy source
Summary
The division of vibration reduction methods into passive, active and semi-active is based on the possibility of using an additional energy source. Active methods ensure the effectiveness of activities in the field of excitations limited by the adopted control law and the possibility of supplying energy from an additional source These methods and their application have rich literature. Many researchers focus on an analysis of vibration reduction systems operating in only one mode and do not consider the benefits resulting from the possibility of their combination They omit the problem of energy source availability for system power. The purpose of the present work is to develop a vibration reduction system (VRS) operating in hybrid mode, taking into account the limitation resulting from the finite capacity of the energy source.
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