The grasping force of traditional under-actuated hands can hardly be kept during grasping. It is a crucial task to improve the grasping forces of robotic hands. Changeable grasping forces unit is one of the most effective solutions. This paper proposed a linkage changeable grasping force (CGF) unit integrated with linkage under-actuation mechanism in accordance with summary of proceeding work o...

∗ Corresponding author, Phone: (716) 645-1430, Fax: (716) 645-3668, Email: [email protected]. ABSTRACT Cable-actuated parallel manipulators combine benefits of large workspaces, significant payload capacities and high stiffness by virtue of the cable actuation. However, redundant/surplus cables are required to overcome the unidirectional nature of forces exertable by cables. This leads to ...

Adaptive optical devices based on electric field induced deformation of dielectric elastomers require transparent and highly compliant electrodes to conform to large shape changes. Electrical, optical, and actuation properties of acrylic elastomer electrodes fabricated with single-walled carbon nanotubes (SWCNTs) and silver nanowires (AgNWs) have been evaluated. Based on these properties, a fig...

The spectral response of a Bragg grating reflector inscribed in a microstructured optical fibre is tuned by employing an infiltrated ferrofluid, while modifying the overlap of the ferrofluidic medium with the grating length. Significant spectral changes in terms of Bragg grating wavelength shift and extinction ratio were obtained under static magnetic field actuation. Spectral measurements reve...

Besides the scale factor that distinguishes the various spices fundamentally biological muscles changes little between species indicating a highly optimized system, Electroactive polymer actuators offer the closest resemblance to biological muscles however beside the large actuation displacement these materials are falling short with regards to the actuation force. As improved materials emergin...

This paper presents a study of Magnetic Shape Memory Alloy (MSMA) performances oriented to the design of a hydraulic pump. Its main properties, high strain and force under small response time requirement, have been recently improved via acoustic assistance by means of piezoelectric actuation. This research encloses a novel study in MSMA actuation technology regarding force and power mechanical ...