A Human Engineering Approach to the Design of Man-Operated Continuous Control Systems

1954 ◽  
Author(s):  
H. P. Birmingham ◽  
F. V. Taylor
Keyword(s):  
Control Systems ◽  
Continuous Control ◽  
Human Engineering ◽  
Engineering Approach

A Computer Experiment on Man-Machine Interaction

1998 ◽  
Vol 26 (2) ◽  
pp. 133-142 ◽  
Author(s):  
N. Aydin Hizal
Keyword(s):  
Computer Program ◽  
Automatic Control ◽  
Control Systems ◽  
Computer Experiment ◽  
Continuous Control ◽  
Operator Training ◽  
Interaction Experiment ◽  
Machine Interaction ◽  
And Training ◽  
Selection Of

A man-machine interaction experiment in the real-time continuous control sense is presented. The computer program is given and described, together with some representative results with regard to plant order, display effects and training effects. In particular, the importance of the selection of the displayed variable is emphasized. The experiment has been helpful in the appreciation of the effects of display gain selection and the inclusion of the derivative terms in the displayed variable, as well as demonstrating the importances of plant order and operator training, by allowing time response shape and criterion value comparisons. The nature of the conclusions reached can be generalized to automatic control, helping students of control systems.

Industrial Design of a Narrow Aisle Sit-Down Lift Truck

1966 ◽  
Vol 8 (4) ◽  
pp. 317-325 ◽  
Author(s):  
Philip H. Stevens ◽  
David O. Chase ◽  
Alan W. Brownlie
Keyword(s):  
Industrial Design ◽  
Human Engineering ◽  
Materials Handling ◽  
Engineering Approach ◽  
Design Program

This report describes the industrial design and human engineering of a sit-down lift truck for narrow aisle warehouse materials handling applications. The objective of the design program was to develop a truck which would be (1) safe, efficient and comfortable to operate; (2) aesthetically appealing; (3) economical to manufacture and use; and (4) easy to maintain and service. A working mockup was constructed to demonstrate the feasibility of the engineering approach, and to validate human engineering, maintainability and safety provisions. Field use under varying conditions has confirmed that the concept of a seated position for the operator of a narrow aisle lift truck was a sound solution for reducing fatigue with no sacrifice in operator effectiveness.

Discretization of Existing Continuous Control Systems

1997 ◽  
Vol 119 (2) ◽  
pp. 315-318 ◽  
Author(s):  
Somnath Pan ◽  
Jayanta Pal
Keyword(s):  
Frequency Response ◽  
Control Systems ◽  
Closed Loop ◽  
Digital System ◽  
New Method ◽  
Continuous Control ◽  
Algebraic Equations ◽  
Analog System ◽  
Linear Algebraic Equations ◽  
Frequency Response Matching

A new method is presented for discretizing an existing analog controller. The method is based on frequency response matching of the closed-loop digital system with that of the original analog system. The method requires solution of linear algebraic equations and is computationally simple. Efficacy of the method is illustrated through examples taken from the literature.

scholarly journals Existence of Mild Solutions and Controllability of Fractional Impulsive Integrodifferential Systems with Nonlocal Conditions

2017 ◽  
Vol 2017 ◽  
pp. 1-11 ◽  
Author(s):  
Haiyong Qin ◽  
Zhenyun Gu ◽  
Youliang Fu ◽  
Tongxing Li
Keyword(s):  
Fixed Point ◽  
Control Systems ◽  
Control Function ◽  
Mild Solutions ◽  
Nonlocal Conditions ◽  
Existence Results ◽  
Continuous Control ◽  
Nonlocal Problems ◽  
Piecewise Continuous ◽  
Fixed Point Methods

This paper is concerned with the existence results of nonlocal problems for a class of fractional impulsive integrodifferential equations in Banach spaces. We define a piecewise continuous control function to obtain the results on controllability of the corresponding fractional impulsive integrodifferential control systems. The results are obtained by means of fixed point methods. An example to illustrate the applications of our main results is given.

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