Contact Force Modeling and Feasible Grasp Force Analysis of Power Grasp

2010 ◽  
Vol 46 (11) ◽  
pp. 43 ◽  
Author(s):  
Wenyu YANG
Keyword(s):  
Contact Force ◽  
Force Analysis ◽  
Force Modeling ◽  
Grasp Force ◽  
Power Grasp

Power grasp force distribution control using artificial neural networks

1992 ◽  
Vol 9 (5) ◽  
pp. 635-661 ◽  
Author(s):  
Mark D. Hanes ◽  
Stanley C. Ahalt ◽  
Khalid Mirza ◽  
David E. Orin
Keyword(s):  
Neural Networks ◽  
Artificial Neural Networks ◽  
Force Distribution ◽  
Grasp Force ◽  
Artificial Neural ◽  
Power Grasp

The Friction Effects for Contact Force Analysis of Three Axes CNC Machine Tool

2017 ◽  
Vol 739 ◽  
pp. 12-17
Author(s):  
Yunn Lin Hwang ◽  
Thi Na Ta ◽  
Jung Kuang Cheng
Keyword(s):  
Machine Tool ◽  
Contact Force ◽  
Dynamic Structure ◽  
Cnc Machine Tool ◽  
Force Analysis ◽  
Dynamic Effects ◽  
Cnc Machine ◽  
Efficient Simulation ◽  
Machine Tool Structure ◽  
Inertia Forces

In this paper, the influence of friction on static, dynamic characteristics, the strength and lifetime of a 3-axes flexible CNC machine tool are taken into account. The machine tool is first modelled by using finite element method (FEM) to perform static structural analysis. After that, the dynamic effects caused by the inertia forces and the displacement of moving part of the machine on contact stress are considered in this study. Then, the stress and contact force distributions on solid-flexible contact are also obtained. Finally, the influence of dynamic structure, cutting conditions and material properties on strength and lifetime of CNC machine tool are discussed by using fatigue analysis. Consequently, the proposed method can be used for efficient simulation of structural dynamics, lifetime assessment as well as interactions of the real CNC machine with the machine tool structure in a virtual environment.

Topological and Contact Force Analysis of a Knee Tumor Prosthesis

2018 ◽  
pp. 291-304
Author(s):  
T. De la Mora Ramirez ◽  
M. A. Doñu Ruiz ◽  
I. Hilerio Cruz ◽  
N. López Perrusquia ◽  
E. D. García Bustos
Keyword(s):  
Contact Force ◽  
Force Analysis ◽  
Tumor Prosthesis

scholarly journals Contact Force Analysis of a Rotor-Brush Seal System With Eccentricity and Airflow

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 69585-69591
Author(s):  
Yuan Wei ◽  
Zhaobo Chen ◽  
Shulin Liu
Keyword(s):  
Contact Force ◽  
Force Analysis ◽  
Brush Seal

The Effects of Gender, Wrist and Forearm Position on Maximum Isometric Power Grasp Force, Wrist Force, and their Interactions

1995 ◽  
Vol 39 (10) ◽  
pp. 543-547 ◽  
Author(s):  
Kerith K. Zellers ◽  
M. Susan Hallbeck
Keyword(s):  
Wrist Flexion ◽  
Wrist Extension ◽  
Wrist Position ◽  
Male Power ◽  
Extension Force ◽  
Grasp Force ◽  
Power Grasp ◽  
Flexion Force ◽  
Flexion And Extension ◽  
And Task

The interaction of power grasp force and wrist force has not been previously examined. This research not only examined the effect of task (wrist force in flexion and extension with and without simultaneous power grasp force), but the effects of gender, wrist position, and forearm position on maximal static exertions. Gender, wrist position, and task were found to significantly affect both power grasp and wrist forces. Females averaged 59.5% of male power grasp force and 51% of male wrist force. Power grasp force was significantly greater in neutral and extended wrist positions than flexed wrist positions while a neutral wrist position generated significantly greater wrist forces than both extended and flexed wrist positions. Due to synergistic conflicts, grasp force during simultaneous wrist extension force was significantly less than grasp force during simultaneous wrist flexion force (60%) and grasp force only tasks (58%). Wrist extension forces were found to exceed flexion forces which contrasts with previous research studies. In addition, wrist forces during simultaneous grasp force did not differ from wrist forces with fingers relaxed.

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