Throwing Power as Related to Material Properties with Analysis by Digital Computer Simulation

1973 ◽  
pp. 191-203
Author(s):  
A. E. GILCHRIST ◽  
D. O. SHUSTER
Keyword(s):  
Computer Simulation ◽  
Material Properties ◽  
Digital Computer ◽  
Throwing Power

A Heuristic Study of Relegation of Control in Constrained Robotic Systems

1987 ◽  
Vol 109 (3) ◽  
pp. 224-231 ◽  
Author(s):  
H. Hemami ◽  
C. Wongchaisuwat ◽  
J. L. Brinker
Keyword(s):  
Computer Simulation ◽  
Control Problem ◽  
Control Strategy ◽  
Digital Computer ◽  
Robotic Systems ◽  
Independent Control ◽  
Mechanical Coupling ◽  
Heuristic Study ◽  
Separate Control ◽  
Planar Robot

A major control problem in the robotic field is the simultaneous and independent control of constrained trajectories and forces of constraint. The trajectories and the forces are related through the mechanical structure of the system. The task of the controller is to influence the mechanical coupling and allow separate control of the trajectories and the forces. A feasible control strategy is by relegation of control to the state or to the input. Relegation by inputs implies assigning the control of trajectories and forces to independent groups of inputs. In this paper, exact and approximate input relegation strategies are investigated. The effectiveness of the input relegation strategy is tested by digital computer simulation of a three link planar robot in a periodic rubbing maneuver.

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