Acoustic Modeling of a 3-Layered Panel Incorporating Electro-Rheological/ Magneto-Rheological (EMR) Fluids

A Rheological Model for Magneto-rheological Fluids

Magneto-rheological fluids (MRF) are suspensions of particles which can be magnetized. MRF exhibit fast, strong and reversible changes in their rheological properties when a magnetic field is applied. A commercially available damping system that takes full advantage of the controllable technology of MRF and delivers valveless damping control appeared on passenger vehicles in 2003. Further comme...

Structure in magneto-rheological fluids: a theoretical analysis

The fundamental mechanism for magneto-rheological clutches, switches and devices is the ability of magnetic fields to induce relatively thick, linearly extended structures which span the relevant fluid medium. Recent observations have shown these to form via initial thin, linear, chain-like threads along the field lines, which then associate laterally via a diffusion-controlled process into the...

Magneto-Rheological Damper Modelling

A comparative analysis of different models of a Magneto-Rheological (MR) damper was done. Three models were tested: a non-linear ARX, a semi-phenomenological and a phenomenological. Although the non-linear ARX model shown the best result, this is a black-box model with limited use. However, the Semi-Phenomenological model represented an excellent option considering the physical meaning of its p...

Nano-materials for Novel Magneto-Rheological Liquids and Nano-fluids

Output Torque Modeling of a Magneto-Rheological Based Actuator

Recent research intended to integrate robots into the anthropic domains has introduced a new set of challenges with regard to design and control of such robots. Among these challenges, human safety is perhaps one the most predominant issues. While, existing solution relies on highly specialized and high cost actuation mechanisms, a new generation of intrinsically safe robots (manipulators) that...