TY - JOUR
T1 - A light weight compliant hand mechanism with high degrees of freedom
AU - Potratz, Jason
AU - Yang, Jingzhou
AU - Abdel-Malek, Karim
AU - Peña Pitarch, Esteban
AU - Grosland, Nicole
PY - 2005/11
Y1 - 2005/11
N2 - This paper presents the design and prototyping of an inherently compliant lightweight hand mechanism. The hand mechanism itself has 15 degrees of freedom and five fingers. Although the degrees of freedom in each finger are coupled, reducing the number of independent degrees of freedom to 5, the 15 degrees of freedom of the hand could potentially be individually actuated. Each joint consists of a novel flexing mechanism that is based on the loading of a compression spring in the axial and transverse direction via a cable and conduit system. Currently, a bench top version of the prototype is being developed; the three joints of each finger are coupled together to simplify the control system. The current control scheme under investigation simulates a control scheme where myoelectric signals in the wrist flexor and extensor muscles are converted in to x and y coordinates on a control scheme chart. Static load-deformation analysis of finger segments is studied based on a 3-dimensional model without taking the stiffener into account, and the experiment validates the simulation.
AB - This paper presents the design and prototyping of an inherently compliant lightweight hand mechanism. The hand mechanism itself has 15 degrees of freedom and five fingers. Although the degrees of freedom in each finger are coupled, reducing the number of independent degrees of freedom to 5, the 15 degrees of freedom of the hand could potentially be individually actuated. Each joint consists of a novel flexing mechanism that is based on the loading of a compression spring in the axial and transverse direction via a cable and conduit system. Currently, a bench top version of the prototype is being developed; the three joints of each finger are coupled together to simplify the control system. The current control scheme under investigation simulates a control scheme where myoelectric signals in the wrist flexor and extensor muscles are converted in to x and y coordinates on a control scheme chart. Static load-deformation analysis of finger segments is studied based on a 3-dimensional model without taking the stiffener into account, and the experiment validates the simulation.
KW - Compliant Lightweight Mechanism
KW - Hand Mechanism
KW - High Degree of Freedom
UR - http://www.scopus.com/inward/record.url?scp=27444433993&partnerID=8YFLogxK
U2 - 10.1115/1.2052805
DO - 10.1115/1.2052805
M3 - Article
C2 - 16438230
AN - SCOPUS:27444433993
SN - 0148-0731
VL - 127
SP - 934
EP - 945
JO - Journal of Biomechanical Engineering
JF - Journal of Biomechanical Engineering
IS - 6
ER -