RESEARCH ON THE RELIABILITY TOLERANCE ANALYSIS METHOD OF ELECTROMAGNETIC RELAY IN MILITARY

摘要

Electromagnetic relay in military is one of main electronic components in national defense electronic systems for information transfer, control and power distribution, and its reliability will influence the reliability of the whole national defense electronic systems. Reliability design is the key technique of electromagnetic relay reliability engineering. This paper analyzed the present research state of reliability and the reliability problem of military electromagnetic relay in existence, and presented the reliability tolerance analyzing mathematic models of electromagnetic force basing on orthogonal design, mechanical spring force basing on probability statistics theory, and matching characteristics of electromagnetic force and mechanical spring force basing on method of stress-strength interference. Some instructive conclusions were drawn by researching on the reliability tolerance of some type electromagnetic relay in military.