“…Thus, ER fluids behave like Bingham fluids under an applied electric field, whereas they exhibit the characteristics of Newtonian fluids when the electric field is turned off [2]. Because of these characteristics of ER fluids, such as short response time, low power consumption, smoothness of operation, and mechanical simplicity, ER fluids have been considered for various applications in mechanical engineering such as engine mounts, shock absorbers, clutches, ER valves, robotics arms and several control systems [3][4][5]. Recently ER fluids have found some newly developed applications, such as human muscle stimulators, spacecraft deployment dampers, seismic controlling frame structures, ER tactile displays, and photonic crystal [6,7].…”