A Kinematic Study of a Robot and a Dextrous Hand

Author(s):  
Ranvir S. Solanki ◽  
Kuldip S. Rattan ◽  
Ints Kaleps ◽  
Daniel W. Repperger
Author(s):  
Ranvir S. Solanki ◽  
Kuldip S. Rattan ◽  
Ints Kaleps ◽  
Daniel V. Repperger

Author(s):  
Allaoua Brahmia ◽  
Ridha Kelaiaia

Abstract To establish an exercise in open muscular chain rehabilitation (OMC), it is necessary to choose the type of kinematic chain of the mechanical / biomechanical system that constitutes the lower limbs in interaction with the robotic device. Indeed, it’s accepted in biomechanics that a rehabilitation exercise in OMC of the lower limb is performed with a fixed hip and a free foot. Based on these findings, a kinematic structure of a new machine, named Reeduc-Knee, is proposed, and a mechanical design is carried out. The contribution of this work is not limited to the mechanical design of the Reeduc-Knee system. Indeed, to define the minimum parameterizing defining the configuration of the device relative to an absolute reference, a geometric and kinematic study is presented.


Author(s):  
Kh.Kh. Sabanchiev ◽  
◽  
I.A. Nogerov ◽  
M.R. Thamokova ◽  
◽  
...  
Keyword(s):  

2013 ◽  
Vol 332 ◽  
pp. 297-304
Author(s):  
Liviu Ciupitu

The noncircular gears are used more and more in industrial applications. The paper presents an educational test rig for the kinematic study of non-circular gears. Two gears are studied from kinematic theoretically point of view: a gear with identically oval spur gears and another gear with identically elliptical spur gears, and simulation diagrams are presented. As for the testing rig, a gear with identically oval spur gears has been used. The researchers are able to draw with high precision the variation curve of output angle with respect to input angle. By using numerical methods for integration and differentiation other diagrams could be drawn and a comparation with simulation diagrams could be made.


Author(s):  
Van Hien Nguyen ◽  
Van Tu Duong ◽  
Huy Hung Nguyen ◽  
Van Dong Nguyen ◽  
Van Sy Le ◽  
...  
Keyword(s):  

1979 ◽  
Vol 15 (3) ◽  
pp. 637-644 ◽  
Author(s):  
Vijay K. Gupta ◽  
Edward C. Waymire
Keyword(s):  

Author(s):  
A. Meghdari ◽  
H. Sayyaadi

Abstract An optimization technique based on the well known Dynamic Programming Algorithm is applied to the motion control trajectories and path planning of multi-jointed fingers in dextrous hand designs. A three fingered hand with each finger containing four degrees of freedom is considered for analysis. After generating the kinematics and dynamics equations of such a hand, optimum values of the joints torques and velocities are computed such that the finger-tips of the hand are moved through their prescribed trajectories with the least time or/and energy to reach the object being grasped. Finally, optimal as well as feasible solutions for the multi-jointed fingers are identified and the results are presented.


Author(s):  
S. V. Sreenivasan ◽  
P. Nanua

Abstract This paper addresses instantaneous motion characteristics of wheeled vehicles systems on even and uneven terrain. A thorough kinematic geometric approach which utilizes screw system theory is used to investigate vehicle-terrain combinations as spatial mechanisms that possess multiple closed kinematic chains. It is shown that if the vehicle-terrain combination satisfies certain geometric conditions, for instance when the vehicle operates on even terrain, the system becomes singular or non-Kutzbachian — it possesses finite range mobility that is different from the one obtained using Kutzbach criterion. An application of this geometric approach to the study of rate kinematics of various classes of wheeled vehicles is also included. This approach provides an integrated framework to study the kinematic effects of varying the vehicle and/or terrain geometric parameters from their nominal values. In addition, design enhancements of existing vehicles are suggested using this approach. This kinematic study is closely related to the force distribution characteristics of wheeled vehicles which is the subject of the companion paper [SN96].


2006 ◽  
Vol 460 (2) ◽  
pp. 499-518 ◽  
Author(s):  
C. Bertout ◽  
F. Genova
Keyword(s):  

Astrophysics ◽  
1998 ◽  
Vol 41 (2) ◽  
pp. 106-111 ◽  
Author(s):  
V. P. Reshetnikov
Keyword(s):  

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