| Dampers incorporating electrorheological fluid (whose damping parameters can be adjusted by altering an imposed electric field) as part of their structure hold great promise as adaptive-passive vibration reduction devices. Extant models of electrorheological dampers are insufficient, because of excessive complexity or the lack of broad experimental validation, to allow the prediction of the response of the damper over a wide range of operating conditions. The work herein proposes a new, simple lumped parameter model for electrorheological dampers, validates the new model against empirical data, and explores the application of electrorheological dampers in a tuned dynamic vibration absorber. The vibration absorption capacity of an electrorheological damper in a dynamic vibration absorber depends on the displacement amplitude and frequency of the vibration, but a substantial reduction in vibration is achievable. |
