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Maintainability of Phased Array Radar Systems
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English
Abstract
Phased planar array radars represent a class of equipment employing hundreds or thousands of individually steerable radiating and receiving elements.
In the operation of such systems, it is necessary to keep continually ahead of an advancing failure accumulation through maintenance policies geared to replacement-while-in-operation concepts.
Several practical maintenance polices are considered:
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Immediate maintenance
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Delayed maintenance
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Cyclic maintenance
The effects of these policies on the outage availability are considered and it is shown that each has certain advantages.
Immediate maintenance yields the highest system availability, but requires the continued presence of a moderate size maintenance force. Increasing the number of maintenance crews increases the availability of phased array systems, but the added contribution to satisfactory system states shrinks rapidly with the growth of crews.
Delayed and cyclic maintenance both involve a more leisurely, planned work pace characterized by periods of relatively low service activity, followed by periods of intense activity to restore the system. At the expense of some system availability, these policies require only part-time presence of maintenance personnel and may well be the most attractive alternatives for phased array radar systems possessing some degree of surplus performance.
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Citation
Hevesh, A., "Maintainability of Phased Array Radar Systems," SAE Technical Paper 670670, 1967, https://doi.org/10.4271/670670.Also In
References
- Allen J. L. “Array Radars, A Survey of Their Potential and Their Limitations” Microwave Journal 5 5 May 1962
- Allen J. L. et al “Phased Array Radar Studies”, Tech” Report 236, M.I.T. Lincoln Laboratory November 1961
- Skolnik M. I. Introduction to Radar Systems New York McGraw-Hill 294 320 1962
- Hevesh A. H. Harrahy D. J. “Effects of Failure on Phased Array Radar Systems” Annual Conference on Failure Pnenomena, IEEE/PTGR-Boston May 1964
- Flehinger B. J. “A General Model for the Reliability Analysis of Systems under Various Preventive Maintenance Policies” IBM Research Report, RW-21 October 1960
- Weiss G. H. “Optimal Periodic Inspection Programs for Randomly Failing Equipment” -” Journal of Research of the National Bureau of Standards 678 4 October/December 1963
- Barlow R. E. et al “Statistical Theory of Reliability” University of Wisconsin Press 1963