Digital/analog simulation of electromechanical devices on a graphics terminal

Computer simulation of electromechanical devices by exercising a suitable mathematical model has advantages in studying the effects of parameter changes. As a specific example, an electromechan ical relay has been chosen for simulation in this investigation. A differential equation model of the rela...

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Bibliographic Details
Published in:Simulation (San Diego, Calif.) Calif.), 1972-03, Vol.18 (3), p.99-104
Main Authors: Sharma, Satya P., Roe, C.D.
Format: Article
Language:English
Subjects:
Computer simulation
Differential equations
Dynamic response
Electromechanical devices
Mathematical analysis
Mathematical models
Relay
Terminals
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Summary:Computer simulation of electromechanical devices by exercising a suitable mathematical model has advantages in studying the effects of parameter changes. As a specific example, an electromechan ical relay has been chosen for simulation in this investigation. A differential equation model of the relay 1 is developed and simulated on an IBM 1130/2250 graphics terminal using the 1130 Continuous System Modeling Program (CSMP). An optical displacement measuring system was used to measure the armature travel as a function of time while the relay was functioning. These mea sured characteristics were compared with the analogous characteristics of the simulated relay to evaluate the validity and accuracy of the mathematical model. It is concluded that the differential equation model is an adequate appro ximation provided the lumped parameters of the magnetic circuit are appropriately chosen. The influence on the dynamic response of the relay as various relay parameters are changed can easily be predicted from the simulated model in this study.
ISSN:0037-5497
1741-3133
DOI:10.1177/003754977201800303