Universal Multi-Parametric Model to Design Devices Based on Magneto-Rheological Fluids

Magnetorheological fluids (MRFs) are comprised in the category of Smart Materials because their viscosity can be controlled by means of an external stimulus. MRF based devices are very interesting and promising for those applications in which fast response, simple interface between electrical power input and mechanical power output, where high accuracy of input signal are fundamental. This paper presents an innovative Universal Multi-Parametric Model which explains the relationship between the functional requirements for MRF based device and the corresponding combination of related properties (say, chemical, physical and operational). A rationale is thus provided to select the best fluid for the specific application. This might constitute an useful and promising tool providing organized knowledge on the MRF world for scholars approaching to the world of MRF technology and might support engineers/designers during the designing process.