Repeated and intensive gait training can improve muscle strength movement coordination of patients with neurological or orthopedic impairments. However, conventional physical therapy by a physiotherapist is laborious expensive. Therefore, this not accessible for the majority patients. This paper presents six-bar linkage mechanism human rehabilitation natural ankle trajectory. Firstly, selected ...

A complete approach for the search of top-quality six-bar linkages based on four-bar generating coupler curves with circular regions has been developed. The includes a robust algorithm to high-accuracy in and fitness function able evaluate quality resulting linkage. is used explore design space order optimal dwell identify types that provide best dwells according established criteria. Then, glo...

The work presents the analysis and synthesis of an eight-link mechanism for industrial seat suspension, followed by a numerical optimization design under specific technical requirements. Even though eight-bar linkage is well-known architecture, it has few applications in suspensions, shows interesting features compared with more traditional scissor systems. It possible to exploit this mechanism...

Many mathematical and intuitive methods for constraint analysis of mechanisms have been proposed. In this article we compare three methods. Method one is based on Grüblers equation. Method two uses an intuitive analysis method based on opening kinematic loops and evaluating the constraints at the intersection. Method three uses a flexible multibody modeling approach which facilitates the analys...

This paper describes a case-study which illustrates the capabilities of a commercially available software package called SyMech, which runs within Pro/ENGINEER. The software allows a designer to synthesize arbitrarily complex planar mechanisms by sequentially specifying one of three basic mechanism design functions: position, path, or angle. Because the software runs directly within Pro/ENGINEE...

Kinematic chains made from links whose lengths and twist angles satisfy a certain proportionality rule are considered. A notion of exchange symmetry for the any such chain affords new understanding mobility well-known overconstrained mechanisms, exemplified by Bennett’s four-bar linkage, provides unifying framework explaining recently discovered class nontrivial underconstrained mechanisms. The...