Magnetorheological fluid devices: principles, characteristics and applications in mechanical engineering

J Wang, G Meng - … of the Institution of Mechanical Engineers …, 2001 - journals.sagepub.com
Magnetorheological (MR) fluids are a class of new intelligent materials whose rheological
characteristics change rapidly and can be controlled easily in the presence of an applied …

Analysis of magnetorheological clutch with double cup-shaped gap excited by Halbach array based on finite element method and experiment

G Zhang, J Chen, Z Zhang, M Sun, Y Yu… - Smart Materials and …, 2022 - iopscience.iop.org
This work describes the magnetic analysis of an innovative double cup-shaped gap
magnetorheological (MR) clutch featuring with three smart MR gels. Four kinds of Halbach …

Electronically controlled prosthetic knee

BW Deffenbaugh, HM Herr, GA Pratt… - US Patent 6,764,520, 2004 - Google Patents
Accordingly it is one important advantage of the present invention to overcome Some or all
of the above limitations by providing a variable-torque magnetorheologically actu ated …

Transfemoral prosthetic systems and methods for operating the same

AV Clausen, M Oddsson - US Patent 8,057,550, 2011 - Google Patents
Certain embodiments of the invention relate to increasing the functionality of a transfemoral
prosthetic device. In one embodiment, the transfemoral prosthetic device is configured such …

A novel high-torque magnetorheological brake with a water cooling method for heat dissipation

DM Wang, YF Hou, ZZ Tian - Smart materials and structures, 2013 - iopscience.iop.org
The extremely severe heating of magnetorheological (MR) brakes restricts their application
in high-power situations. This study aims to develop a novel MR brake with a high-torque …

Dynamic seals for a prosthetic knee

CR Bisbee III, HH Hsu - US Patent 7,455,696, 2008 - Google Patents
The invention in some embodiments relates to a dynamic seal for a prosthetic knee. The
dynamic seal in one embodiment is utilized to seal a magnetorheological fluid comprising a …

Speed-adaptive and patient-adaptive prosthetic knee

HM Herr, A Wilkenfeld, O Bleck - US Patent 7,279,009, 2007 - Google Patents
The invention relates to an automated speed-adaptive and patient-adaptive control scheme
and system for a knee prosthesis. The control scheme and system utilizes sensory …

Modeling and reduction of centrifuging in magnetorheological (MR) transmission clutches for automotive applications

VA Neelakantan… - Journal of Intelligent …, 2005 - journals.sagepub.com
Conventional shear mode transmission clutches using magnetorheological fluids (MRFs)
can be either disc-shaped or cylindrical. The major drawbacks of these devices include the …

Systems and methods of loading fluid in a prosthetic knee

CR Bisbee III, HH Hsu - US Patent 7,198,071, 2007 - Google Patents
A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES
PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES …

Control system for prosthetic knee

HM Herr, A Wilkenfeld, O Bleck - US Patent 7,799,091, 2010 - Google Patents
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