STUDY OF CHARACTERISTICS OF ELECTRO RHEOLOGICAL FLUID AND ITS APPLIED DEVICES

Electrorheo logical(ER) fluids exhibit changes in rheological behavior in the presence of an electric field. This paper provides a summary of the current state of electrorhe-ological fluids application and development.A critique of proposed mechanisms for the ER phenomenon, a description of basic material configurations used in controllable system components, and a discussion of controllable devices are presented. Meantime, for the double layer composite beam featuring eletrorheological fluids, the effect of electric field on the vibrational characteristics of beam is focused. The active controllable damper featuring electrorheological fluids is studied, and the vibrational characteristics of the damper are also evaluated when subjected to an external electric field.