We present a new mechanism for harmonic generation in magnetorheological (MR) fluids, which differs from the usual ones due to magnetic anisotropy existing in amorphous ferromagnetic materials. Based on thermodynamics, we derive the incremental magnetic susceptibility of the MR fluid which is partially situated in a nonuniform magnetic field, and further extract the desired harmonics analytical...

We explored vibrations of a single-degree of freedom oscillator with a magnetorheological damper subjected to kinematic excitations. Using fast and slow scales decoupling procedure we derived an effective damping coefficient in the limit of high frequency excitation. Damping characteristics, as functions of velocity, change considerably especially by terminating the singular non-smoothness poin...

Jamming is a phenomenon occurring in systems as diverse as traffic, colloidal suspensions, and granular materials. A theory on the reversible elastic deformation of jammed states is presented. First, an explicit granular stress-strain relation is derived that captures many relevant features of sand, including especially the Coulomb yield surface and a third-order jamming transition. Then this a...

The findings and technological developments related to intelligent materials are increasingly attracting the attention of scientists. One such field is that magnetorheological (MR) materials. Scientific studies on MR have been carried out determine performance characteristics of, for example, dampers, elastomers, foams. To best authors’ knowledge, there has no statistical discussion in form bib...

Title of Dissertation: DEVELOPMENT OF MAGNETORHEOLOGICAL FLUID ELASTOMERIC DAMPERS FOR HELICOPTER STABILITY AUGMENTATION Wei Hu, Doctor of Philosophy, 2005 Dissertation directed by: Professor Norman M. Wereley Department of Aerospace Engineering Conventional lag dampers use passive materials, such as elastomers, to dissipate energy and provide stiffness, but their damping and stiffness levels d...

1Dr. DY Patil Medical College, Mumbai, India 2Department of Medicine, Mount Sinai St. Luke’s and Mount Sinai Roosevelt Hospitals, Icahn School of Medicine, New York, NY 3Department of Pathology, Mount Sinai St. Luke’s and Mount Sinai Roosevelt Hospitals, Icahn School of Medicine, New York, NY 4Department of Surgery, Mount Sinai St. Luke’s and Mount Sinai Roosevelt Hospitals, Icahn School of Med...

Abstract Magnetorheological fluids are an important direction in the research of smart materials. Their high damping force, wide dynamic range, frequency response and controllable stiffness characteristics make their innovative application field artillery firing technology helpful solving many technical problems faced during firing. A simulation model dynamics magnetorheological buffer system i...