This paper concerns with the development of three nonmotorized individual lower limb joints
rehabilitation mechanisms based on a four-bar linkage, and mechanical movement …

The authors present a general method for the automated singularity analysis of any
mechanism at a given configuration. The procedure uses a base of the motion space. This is …

This paper investigates the forward and inverse kinematics in screw coordinates for a planar
slider-crank linkage. According to the definition of a screw, both the angular velocity of a …

This paper proposes a novel kinematic analysis method for a class of lower-mobility
mechanisms whose degree-of-freedom (DoF) equal the number of single-DoF kinematic …

The heart of the work is a method of structural analysis of planar mechanisms (SAM)
allowing for separation of Assur groups, being the smallest kinematically well determined …

This paper presents a numerical approach to rigid body linkage kinematics, based on a
reduced form of the stiffness matrix and in structural analysis concepts. This matrix may be …

Among existing kinematic analysis methods of mechanisms, the techniques based on finite
elements represent a generally applicable alternative which enable a wide variety of …

This paper proposes a kinematics methodology in twist coordinates for screw linkages.
Based on the definition of a twist, both the angular velocity of a link and the linear velocity of …

To reform the traditional concrete formwork, an overconstrained deployable frame is
designed. It is composed of closed loop deployable units formed by scissor-form elements …

This paper presents a finite element method (FEM) for the kinematic solution of parallel
manipulators (PMs), and this approach is applied to analyze the kinematics of a parallel hip …