Simulation and diagnosis of degradation failure on electromagnetic relay

Electromagnetic relay has a high failure rate, which is the severely afflicted area where components and parts easily lose efficacy in the electronic system. Monitoring and evaluation of relay status in key positions are a crucial method to improve operational reliability. Degradation is the significant cause for failure of electromagnetic relay. However, owing to few researches concerning degradation failure of relay at present, lacking of degradation data and ambiguity of degradation characteristics have already become the main factors restricting PHM application of relay. Aiming at this problem, this paper conducted a degradation failure of electromagnetic relay simulation based on the Virtual Prototyping Technology, obtained valuable failure data, and built state space of failure data, in order to extract the fault feature data and realize the diagnosis of failure type. This paper owns a certain practical significance for studying characterization of degradation state of relay, as well as its PHM application.