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A controllably adhesive climbing robot using magnetorheological fluid

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3 Author(s)
Wiltsie, N. ; Robotic Mobility Group, Massachusetts Inst. of Technol., Cambridge, MA, USA ; Lanzetta, M. ; Iagnemma, K.

The novel adhesive effects of magnetorheological fluid for use in climbing robotics were experimentally measured and compared to existing theoretical models. Contrary to these models, the fluid thickness between two parallel plates was found to have little effect on the adhesive failure strength and a positive effect on time to failure. Target surface roughness was found to have a detrimental effect on pull-off adhesion and a positive effect on shearing loads. A robot capable of adhering to ceilings was designed and shown to be capable of holding 7.3 kPa of adhesive stress in both shear on rough vertical surfaces and normal force on glass sheets, demonstrating a novel form of adhesion on a wide range of surface roughnesses and orientations.

Published in:

Technologies for Practical Robot Applications (TePRA), 2012 IEEE International Conference on

Date of Conference:

23-24 April 2012