An autonomous shunt circuit for vibration damping

Abstract

This paper describes the implementation of an autonomous switching resistor–inductor (R–L) shunt circuit for the control of structure vibration. The resulting switch shunt circuit, compared to present shunt circuit techniques, does not require a power for its operation and is almost as effective. Moreover, experiments show that the damping performance is robust against temperature variations due to environmental conditions, whereas present shunt circuits lose their damping performance. The proposed autonomous switching R–L shunt circuit requires a small number of electronic components, therefore making it a viable and effective solution for the control of structural vibration.