Proceedings Of The 7th International Conference On Electro Rheological Fluids And Magneto Rheological Suspensions

Electrorheological (ER) and magnetorheological (MR) fluids, which can be transformed from the liquid state into the solid state in milliseconds by applying an electric or a magnetic field, are smart fluids having the potential to revolutionize several industrial sectors. The Seventh International Conference on Electrorheological Fluids and Magnetorheological Suspensions took place at a time when some MR and ER applications were beginning to appear on the market, making a notable impact on industries. Scientists and engineers in multidisciplinary areas came together to explore the state-of-the-art technology and identify thrust areas to be focused on. This volume of proceedings collects contributions from most leading experts in the field. It reviews the most recent MR and ER applications, discusses the materials technology, explores the basic science research on ER and MR fluids, and examines the novel properties of these fluids. It provides the most up-to-date and probably the best information about the area. It can serve as a stimulating and valuable reference for research workers and students in materials science, condensed matter physics, engineering, and chemistry. The valuable information not only reports on the leading edge of research and applications, but also provides an overview of the field. Contents:Materials Technology:Enhance the Yield Shear Stress of Magnetorheological Fluids (X Tang et al.)Muscular Contraction Mimiced by Magnetic Gels (M Zrinyi & D Szabó)Electroactive and Electrostructured Elastomer (G Bossis et al.)Physical Mechanisms:Parameters Affecting Lamellar Formations in ER Fluids: An Alternative Model for ER Activity (F E Filisko & S Henley)Transient Behavior of the Microstructure of Electrorheological Fluids in Shear Flow Mode (S L Vieira et al.)A Conduction Model Describing Particle–Particle Interaction in the Case of Surface Conducting Particles (P Gonon et al.)Microstructure:Evidence of Second Order Phase Transition in Ferrofluid in External Electric Field (X Duan & W Luo)Dynamic Simulation Studies of Structural Formation and Transition in Electro-Magneto-Rheological Fluids (Z Wang et al.)Structures of a Magnetorheological Fluid (G L Gulley & R Tao)Properties:A Comparison Between Electrorheological and Magnetorheological Fluids Subjected to Impulsive Loads (A K E Wahed et al.)Electrorheological Fluids Under Shear (R Tao et al.)Shearing Effects on the Electrorheological Response (K Tanaka et al.)Applications of Magnetorheological Fluids:Low-Cost MR Fluid Sponge Devices (J D Carlson)Heating of Magnetorheological Fluid Dampers: An Experimental Study (F Gordaninejad & D G Breese)Vibration Suppression of an MR Fluid Damper System with Frequency-Shaped LQ Control (K Kim et al.)Application of Electrorheological Fluids:Haptic Device Working with an Electrorheological Fluid (H Böse & H-J Berkemeier)Actuator Making Use of Electro-Rheological Fluids Proposition of Movable Electrode Type ER Actuator (Y Kondoh & S Yokota)Development of High-Performance Actuators Using ER Fluids (M Sakaguchi & J Furusho)and other papers Readership: Materials scientists, condensed matter physicists, chemists and engineers. Keywords:Electrorheological;Magnetorheological;Fluid;Suspension;Microstructure;Condensed MatterReviews:“The papers in this book, describing the state of the art in ER and MR technology, would be very useful to researchers developing or applying these materials.”IEEE Electrical Insulation Magazine

Electrorheological (ER) and magnetorheological (MR) fluids, which can be transformed from the liquid state into the solid state in milliseconds by applying an electric or a magnetic field, are smart fluids having the potential to revolutionize several industrial sectors. The Seventh International Conference on Electrorheological Fluids and Magnetorheological Suspensions took place at a time when some MR and ER applications were beginning to appear on the market, making a notable impact on industries. Scientists and engineers in multidisciplinary areas came together to explore the state-of-the-art technology and identify thrust areas to be focused on.This volume of proceedings collects contributions from most leading experts in the field. It reviews the most recent MR and ER applications, discusses the materials technology, explores the basic science research on ER and MR fluids, and examines the novel properties of these fluids. It provides the most up-to-date and probably the best information about the area. It can serve as a stimulating and valuable reference for research workers and students in materials science, condensed matter physics, engineering, and chemistry. The valuable information not only reports on the leading edge of research and applications, but also provides an overview of the field.

ERMR 2006 included invited speakers, technical presentations, poster presentations, and a student paper competition. At the conference banquet, Dr. David Carlson of Lord Corporation addressed the conference attendees and gave a stirring speech on the history of ER and MR fluids, as well as current and future applications. A unique feature of the ERMR Conferences is that they comprehensively cover issues ranging from physics to chemistry to engineering applications of ER and MR materials held in a general session to enhance the interaction between the scientists and engineers. The sessions in ERMR 2006 were organized based into two Symposia: a) Materials and b) Applications. Topics covered in the Materials Symposium included: mechanisms, preparation, and characterization of ER and MR materials. Topics covered in the Applications Symposium included: ER and MR devices, control systems, system integration, and applications. This structure was implemented in order to enable interaction between attending scientists and engineers in both the Materials Symposium and the Applications Symposium, and to enhance the free flow of ideas, and the potential collaborative research opportunities.

ERMR 2006 included invited speakers, technical presentations, poster presentations, and a student paper competition. At the conference banquet, Dr. David Carlson of Lord Corporation addressed the conference attendees and gave a stirring speech on the history of ER and MR fluids, as well as current and future applications. A unique feature of the ERMR Conferences is that they comprehensively cover issues ranging from physics to chemistry to engineering applications of ER and MR materials held in a general session to enhance the interaction between the scientists and engineers. The sessions in ERMR 2006 were organized based into two Symposia: a) Materials and b) Applications. Topics covered in the Materials Symposium included: mechanisms, preparation, and characterization of ER and MR materials. Topics covered in the Applications Symposium included: ER and MR devices, control systems, system integration, and applications. This structure was implemented in order to enable interaction between attending scientists and engineers in both the Materials Symposium and the Applications Symposium, and to enhance the free flow of ideas, and the potential collaborative research opportunities. Sample Chapter(s). Chapter 1: Transient Behavior of Electrorheological Fluids in Shear Flow (471 KB). Contents: The Physical Mechanism to Reduce Viscosity of Liquid Suspensions (R Tao); Polar Molecular Type Electrorheological Fluids (K Lu et al.); Yield Stress in Ferrofluids? (H Shahnazian & S Odenbach); The Effect of Dwell Time on the Rheological Behavior of MR Fluids (M Ahmadian & F D Goncalves); The Methods of Measuring Shear Stress of Polar Molecule Dominated ER Fluids (R Shen et al.); Electrosensitive Lubricants (E V Korobko et al.); Study on Characteristics of an Electrorheological Fluid Coupling (Y Meng et al.); On the Control of a MR Torque Transfer Device (M H Elahinia et al.); Comparison of ERF Clutch Designs (D J Ellam et al.); Examination of Throughflow in a Radial ERF Clutch (S M Chen et al.); Two-Layered Magnetic Fluid Sloshing in a Rectangular Container (S Yoshida et al.); Design of the High-Performance MR Brake and Its Characteristics (T Kikuchi et al.); and other papers. Readership: Mechanical engineers, electrical engineers, physicists, chemists, chemical engineers and materials scientists.

This book contains up-to-date information on the state of the art of research and applications in electro- and magnetorheology. A total of 130 papers are presented in four sections. The first section is devoted to the various applications of ER and MR fluids, like polishing, microfluidics, vibration control, robots, shock absorbers and dampers, MR and ER valves. The second part deals with the experimental characterization as well as the theoretical prediction of the mesostructure resulting from field-induced phase separation. The dynamics of phase separation is also included in this section. The third section is about the material properties; it includes papers on new compositions of ER or MR fluids, polymer blends, magneto- or electroactive elastomers and gels. The last section, about physical mechanisms, presents experiments and theories on the rheology of the fluids and its connection with microhydrodynamics and the structure of field-induced aggregates. Contents:Applications:Multiple Application of Magnetorheological Effect in High Precision Finishing (W Kordonski & A Don Golini)Vibration Isolation of Structural Systems Using Squeeze Mode ER Mount (S R Hong et al.)Study on the Vibration Attenuation of a Driver Seat Using an MR Fluid Damper (Y Lee & D Jeon)Electro-Structured Fluids Seals (R J Atkin et al.)Microstructures:Structures in Magnetic Suspension Submitted to Unidirectional and Rotating Field (P Carletto et al.)Chain Rotational Dynamics in MR Suspension (S Melle et al.)Magnetic Interactions of Chains Formed by Ferro-Magnetic Spheres (S Lacis et al.)Field Induced Phase Transition for Suspension of Monosized Spheres (S Men et al.)Material Properties:Chain Behavior in Model Homogenous ER Fluids Depending on Temperature (H Okamura et al.)Compressive Modulus of Ferrite Containing Polymers Gels (T Mitsumata et al.)Reversibility of the ER Effect in Immiscible Liquid Blends (S Yamamoto et al.)Synthesis and Electrorheology of Mesoporous Particle Suspensions (H J Choi et al.)Physical Mechanisms:Effects of Shape and Size of Dispersoid on Electrorheology (A Kawai et al.)Effect of Magnetic Hysteresis of the Solid Phase on the Rheological Properties of MR Fluids (J De Vicente et al.)Relaxation Theory for Dynamic Electrorheological Effect (G Q Gu et al.)Temperature Dependence of MR Fluids (W H Li et al.)and other papers Readership: Researchers and industrialists in the fields of new materials, engineering mechanics, earthquake engineering, materials engineering, mechanical engineering and condensed matter physics. Keywords:Reviews:“This is an exceptionally documented proceedings, with many formulations, design ideas for applications, material properties, and characteristics that are clearly revealed. Any researcher involved with ER/MR fluids would find this book to be an excellent reference for design ideas and material properties of ER/MR fluids.”IEEE Electrical Insulation Magazine

This book contains up-to-date information on the state of the art of research and applications in electro- and magnetorheology. A total of 130 papers are presented in four sections. The first section is devoted to the various applications of ER and MR fluids, like polishing, microfluidics, vibration control, robots, shock absorbers and dampers, MR and ER valves. The second part deals with the experimental characterization as well as the theoretical prediction of the mesostructure resulting from field-induced phase separation. The dynamics of phase separation is also included in this section. The third section is about the material properties; it includes papers on new compositions of ER or MR fluids, polymer blends, magneto- or electroactive elastomers and gels. The last section, about physical mechanisms, presents experiments and theories on the rheology of the fluids and its connection with microhydrodynamics and the structure of field-induced aggregates.