Article

The goal of this study was to find an efficient method of energy transmission for
application in an anthropomorphic underactuated body-powered (BP) prosthetic
hand. A pulley-cable finger and a hydraulic cylinder finger were designed and
tested to compare the pulley-cable transmission principle with the hydraulic
cylinder transmission principle. Both fingers had identical dimensions and a low
mass. The only thing that differed between the fingers was the transmission
principle. The input energy was measured for a number of tasks. The pulley-cable
finger required more input energy than the hydraulic cylinder finger to perform
the tasks. This was especially the case in tasks that required high pinch forces.
The hydraulic cylinder transmission is therefore the more efficient transmission
for application in BP prosthetic fingers.

Langue : ANGLAIS