Closed-loop two-fold tape spring transmissions

Background: Compliant mechanisms have the advantage of low weight, no lubrication, no wear and no friction. These are good properties for a mechanical transmission. But large range of motion (ROM) in compliant mechanisms is a challenge. If the ends of a long shell with only a transverse curvature are connected, a two-fold closed-loop tape spring...

Optimization and Controller Design of an Integrated 6-DoF Lorentz Actuator with Gravity Compensator for Vibration/Precision Positioning

An Integrated 6-DoF Lorentz Actuator with Gravity Compensator for Vibration / Precision Positioning has been analyzed and optimized. The gravity compensation function is realized by permanent magnets. The 6-DoF actuator is based on the utilization of the mover magnets. A demonstrator of the novel 6-DoF actuator integrated with magnetic gravity...

Pneumatic Manifold Design

In the high-tech industry the call for higher precision and higher accuracy will never vanish. One of the aspects that influences precision and accuracy is transportation. To transport an object contact is needed. Stigmatically thinking, contact means having a mechanical connection between the transporter and the object to transport. However, if...

Modeling and design of origami mechanisms with compliant facets

Origami mechanisms are fabricated from a simple sheet material, but can exhibit complex motions in 3D. Advantages are a planar fabrication process and the inherent deployability. Almost all current origami mechanisms are being designed on the premise of rigid facets. In this research, flexible facets are used to incorporate spring behavior. A...