Design of Voice Coil Type Linear Actuator for Hydraulic Servo Valve Operation
American Journal of Electrical Power and Energy Systems
Volume 4, Issue 5-1, September 2015, Pages: 1-8
Received: Jul. 3, 2015; Accepted: Jul. 15, 2015; Published: Sep. 10, 2015
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Author
Baek Ju Sung, Korea Institute of Machinery&Materials, Daejeon, Korea
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Abstract
In this study, we proposed governing equations for voice coil type linear actuator for valve operation. We draw up governing equations which are composed by combination of electromagnetic theories and empirical knowledge, and deduct the values of major design factors by use of them. We suggested the governing equations to determine the values of design parameters of linear actuator as like bobbin size, length of yoke and plunger and turn number of coil. And we also calculated the life test time of linear actuator for verification of reliability of the prototype. In addition, for reducing the life test time, the acceleration model of linear actuator is proposed and the acceleration factor is calculated considering the field operating conditions. Finally we have proven the propriety of the governing equations by accelerated life test using the valve assembly adopted the voice coil type linear actuator prototype.
Keywords
Linear Actuator, Permanent Magnet, Governing Equation, Design Factor, Voice Coil Type, Accelerated Model, Life Test, Frequency Response Test
To cite this article
Baek Ju Sung, Design of Voice Coil Type Linear Actuator for Hydraulic Servo Valve Operation, American Journal of Electrical Power and Energy Systems. Special Issue: Electrical Special Machines. Vol. 4, No. 5-1, 2015, pp. 1-8. doi: 10.11648/j.epes.s.2015040501.11
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