Simplified modelling and dynamic analysis of a Laws’ relay actuator

This paper presents results from an extensive investigation into the modelling and experimental performance evaluation of a Laws’ relay actuator. Ideally, the actuator is analyzed through the solution of the partial differential equations that describe the electro-magnetic interaction and the mechan...

Full description

Saved in:
Bibliographic Details
Published in:Mechatronics (Oxford) 1999, Vol.9 (5), p.463-475
Main Authors: Smith, I.R, Kettleborough, J.G, Zhang, Y
Format: Article
Language:English
Subjects:
Applied sciences
Control nonlinearities
Electric motors
Electrical engineering. Electrical power engineering
Electrical machines
Exact sciences and technology
Laws’ relay actuator
Limited-angle torque motor
Mathematical models
Nonlinear modelling
Partial differential equations
Regulation and control
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper presents results from an extensive investigation into the modelling and experimental performance evaluation of a Laws’ relay actuator. Ideally, the actuator is analyzed through the solution of the partial differential equations that describe the electro-magnetic interaction and the mechanical movement, and this requires the use of information not normally provided in the manufacture’s design data. The paper describes an alternative and much simplified approach, using a combination of experimental and analytical techniques, that, although including the significant nonlinearities present in the actuator, avoids the need for a complex finite-element and numerical solution. Measured results from an experimental actuator demonstrate the effectiveness of the model, which is of considerable value when designing a complex control loop of which the actuator forms part.
ISSN:0957-4158
1873-4006
DOI:10.1016/S0957-4158(99)00007-0