Average lifespan of radioelectronic equipment with allowance for resource limitations

• Published in: Solar system research Vol. 45; no. 7; pp. 638 - 640
• Main Author: Davydov, A. N.
• Format: Journal Article
• Language: English
• Published: Dordrecht SP MAIK Nauka/Interperiodica 01.12.2011; Springer Nature B.V
• Subjects: Astronomy; Astrophysics and Astroparticles; Astrophysics and Cosmology; Electronics; Life span; Observations and Techniques; Physics; Physics and Astronomy; Planetology; Product life cycle; Radio equipment; Spacecraft; spacecraft; incedents distribution law; probability; lifespan; redioelectronic equipment
• ISSN: 0038-0946; 1608-3423
• DOI: 10.1134/S0038094611070057

One of the reliability parameters of radioelectronic equipment is its average life span. The number of incidents during the operation of different items that make up the component base of radioelectronic equipment follows an exponential distribution. In general, the average life span for an exponential distribution is T mean = 1/λ, where λ is the rate of base incidents in a component per hour. This estimate is valid when considering the life span of radioelectronic equipment from zero to infinity. In reality, component base items and, correspondingly, radioelectronic equipment have resource limitations caused by the properties of their composing materials and manufacturing technique. The average life span of radioelectronic equipment will be different from the ideal life span of the equipment. This paper is aimed at calculating the average life span of radioelectronic equipment with allowance for resource limitations of constituent electronic component base items.