Hydraulic rescue spreaders are used by emergency response personnel to extricate occupants from a vehicle crash. A lighter and more portable rescue spreader is required for better usability and to enable utilization in a variety of scenarios. To meet this requirement, topological synthesis, dimensional synthesis, and an optimization were used to develop a solution linkage. The topological synth...

In this paper, we present a “wireless glove” that we propose as a new musical instrument; it is able to control a real time granular sound synthesis process. The glove was adopted to detect intrinsic and extrinsic hand movements, thanks to sensors on back-hands, palm and fingers. Sensors realized with piezoresistive materials change their electrical resistivity when deformed. The piezoresistive...

The flexure parallel mechanism (FPM) possessing selective actuation (SA) feature can be used as a micromanipulation system. The design of FPMs with the SA characteristic consists of type synthesis of parallel mechanisms possessing the required number of degree of freedom (DOF), geometric arrangement of the structure to obtain the SA and conversion of the kinematic mechanism into the flexure mec...

Structural synthesis creates a structural scheme according to the given characteristics - degree of abnormality structure S and its irrationality s . is created at first stage synthesis, containing only rotational kinematic pairs corresponds abnormality, which ensured by ratio units – plus monads, minus monads null monads. At second stage, independence makes it possible bring obtained downgradi...

-A computer aided method has been proposed for detecting isomorphism among planar kinematic chains with sample joints using a new invariant called the arranged sequence of modified total distance ranks of all the links (ASMTDRL). This invariant takes into account the degrees of'links, and degrees-of-freedom and types of joints of the kinematic chain. Two computer aided methods have also been de...

This review surveys late 19 century kinematics and the theory of machines as seen through the contributions of the German engineering scientist, Franz Reuleaux (1829-1905), often called the “father of kinematics”. Extremely famous in his time and one of the first honorary members of ASME, he has largely been forgotten in much of modern mechanics literature in English until recently as some of h...

This paper deals with the motion interpolation of an object that satisfies the kinematic constraints imposed by planar 6R closed chains. The paper brings together the well-known kinematics of planar 6R closed chains and the freeform rational motions to synthesize the constrained piecewise rational motions in the Cartesian space. The methodology adopted in this paper is based on transforming the...

The control problem of unicycle-like vehicles such as mobile robots is considered. More exactly, we propose the use of a linear parameter varying (LPV) approach to obtain both stabilization of the kinematic model together with high accuracy in trajectory tracking. This objective has been achieved by exploiting the advantages oŒered by linear matrix inequality (LMI) theory and by introducing in ...

The design of the canopy utilizes conventional rigid body mechanisms which is vulnerable to presence backlash, friction joints or wearing mechanical parts lead short product life. Compliant are employed reduce these problems, owing their zero-joint and monolithic structure. A reference for was chosen modified through reviewing different patent designs. Six configurations pseudo-rigid-body model...

Kinematic synthesis of four bar mechanisms is a design problem that is difficult to solve by generative methods. The present approach is a variant based method that combines the genetic programming and decision tree learning methods. The aim of the research is to give a structural description for the class of mechanisms that produce desired coupler curves. For finding and characterizing feasibl...