Method for Identification of Nonlinear Parameters and Its Application to Data Analysis for Aerospace Relay Reliability

Huimin LIANG  Jingbo LIN  Guofu ZHAI  Wenlong WANG  

IEICE TRANSACTIONS on Electronics   Vol.E89-C   No.8   pp.1173-1176
Publication Date: 2006/08/01
Online ISSN: 1745-1353
DOI: 10.1093/ietele/e89-c.8.1173
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Recent Development of Electromechanical Devices (Selected Papers from IS-EMD2005))
Category: Relays & Switches
contact moving time,  over travel time,  Gauss-Newton method,  Macalto method,  nonlinear parameter identify,  

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A method which uses the moving time and the over travel time of contact to discover the characteristics of contact and the reliability of aerospace relay is proposed. The Gauss-Newton method and its improved form (Macalto method) are used to identify the nonlinear mathematical model of the parameter during armature initial moving period, which is from the coil is energized at a rated voltage to the moment the armature begins to move. The validity of the method is verified by results of actual experiments and analysis.