A series of unidirectional compression tests on electrorheological fluids has been carried out with different plate sizes, initial plate separations, and applied voltages. Experimental results of compression pressure were compared with the continuum non-Newtonian squeeze-flow theory in a normalized form. It was found that the compression resistance of the electrorheological fluid in an electric...

The dynamic stability of a composite plate with external electrorheological (ER) damper subjected to an axial periodic load is investigated. Electrorheological fluids are a class of smart materials, which exhibit reversible changes in mechanical properties when subjected to an electric field. As a result, the dynamic behavior of the structure is changed. The ER damper is used for suppressing th...

The ground state of an electrorheological (ER) fluid has been studied based on our recently proposed dipole-induced dipole (DID) model. We obtained an analytical expression of the interaction between chains of particles which are of the same or different dielectric constants. The effects of dielectric constants on the structure formation in monodisperse and polydisperse electrorheological fluid...

The dynamic response of a fluidic actuator is investigated on the basis numerical simulations. With this membrane excited to oscillate by means an electrorheological valve. For purpose solid and fluid domains are coupled. Furthermore, constitutive equation coupled electric field. discussed example variable stiffness membrane. Actuators type offer potential delay transition boundary layer.

*Correspondence: Weijia Wen, Department of Physics and Institute of Nano Science and Technology, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China e-mail: [email protected] When giant electrorheological (GER) fluid is settled after some time, particles can precipitate out of the oil in a multistep process that involves the formation of larger particles, t...

The purpose Electrorheological (ER) fluids are capable of providing continuously variable damping forces in response to an electrical stimulus. Many prototype ER dampers, described in the literature, have been based upon exploiting the variable shear properties of ER fluids. Recently, an alternative mode of operation, namely squeeze-flow, has been identified and investigated. Furthermore, most ...

We consider the general problem on stationary flow of the electrorheological fluid with the constitutive equation developed in [R. H. W. Hoppe and W. G. Litvinov, Comm. Pure. Appl. Anal., 3 (2004), pp. 809–848] in the cylindrical coordinate system. The problem is studied under mixed boundary conditions wherein velocities are specified on one part of the boundary and surface forces are given on ...