Hostname: page-component-cd9895bd7-q99xh Total loading time: 0 Render date: 2024-12-26T20:36:21.606Z Has data issue: false hasContentIssue false

Stochastic order for redundancy allocations in series and parallel systems

Published online by Cambridge University Press:  01 July 2016

Philip J. Boland*
Affiliation:
University College, Dublin
Emad El-Neweihi*
Affiliation:
University of Illinois at Chicago
Frank Proschan*
Affiliation:
The Florida State University
*
Postal address: Department of Statistics, University College, Belfield, Dublin 4, Ireland.
∗∗Postal address: Department of Mathematics, Statistics and Computer Science, University of Illinois at Chicago, Chicago, IL 60680, USA.
∗∗∗Postal address: Department of Statistics, The Florida State University, Tallahassee, FL 32306–3033, USA.

Abstract

The problem of where to allocate a redundant component in a system in order to optimize the lifetime of a system is an important problem in reliability theory which also poses many interesting questions in mathematical statistics. We consider both active redundancy and standby redundancy, and investigate the problem of where to allocate a spare in a system in order to stochastically optimize the lifetime of the resulting system. Extensive results are obtained in particular for series and parallel systems.

Type
Research Article
Copyright
Copyright © Applied Probability Trust 1992 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Footnotes

Research supported in part by AFOSR Grant No. 88–0040.

Research supported by AFOSR Grant Nos 89–0221 and 88–0040.

Research supported by Air Force Office of Scientific Research under Grant No. AFOSR 88–0040.

References

[1] Barlow, R. E. and Proschan, F. (1975) Importance of system components and failure tree events. Stoch. Proc. Appl. 3, 153173.Google Scholar
[2] Barlow, R. E. and Proschan, F. (1981) Statistical Theory of Reliability and Life Testing, Probability Models. To Begin With, Silver Spring, MD.Google Scholar
[3] Bergman, B. (1985) On reliability theory and its applications (with discussion). Scand. J. Statist. 12, 141.Google Scholar
[4] Bergman, B. (1985) On some new reliability importance measures. Proc. IFAC SAFE-COMP'85, Como, Italy , ed. Quirk, W. J. 6164.Google Scholar
[5] Boland, P. J. and El-Neweihi, E. (1992) Measures of component importance in reliability theory. Comput. Operat. Res. To appear.Google Scholar
[6] Boland, P. J., El-Neweihi, E. and Proschan, F. (1988) Active redundancy allocation in coherent systems. Prob. Eng. Inf. Sci. 2, 343353.Google Scholar
[7] Boland, P. J., Proschan, F. and Tong, Y. L. (1989) Crossing properties of mixture distributions. Prob. Eng. Inf. Sci. 3, 355366.Google Scholar
[8] Boland, P. J., El-Neweihi, E. and Proschan, F. (1991) Redundancy importance and allocation of spares in coherent systems. J. Statist. Planning Inf. Google Scholar
[9] Karlin, S. (1968) Total Positivity. Stanford University Press.Google Scholar
[10] Karlin, S. and Proschan, F. (1960) Pólya type distributions of convolutions. Ann. Math. Statist. 31, 721736.Google Scholar
[11] Karlin, S. and Rinott, Y. (1980) Classes of orderings of measures and related correlation inequalities: multivariate reverse rule distributions. J. Mult. Anal. 10, 499516.Google Scholar
[12] Kotz, S. and Johnson, N., (Eds) (1985) Encyclopedia of Statistical Sciences , Volume 5. Wiley, New York.Google Scholar
[13] Marshall, A. and Olkin, I. (1979) Theory of Majorization and its Applications. Academic Press, New York.Google Scholar
[14] Natvig, B. (1985) New light on measures of importance of system components. Scand. J. Statist. 12, 4354.Google Scholar
[15] Råde, L. (1989) Expected time to failure of reliability systems. Math. Scientist 14, 2437.Google Scholar
[16] Xie, M. and Shen, K. (1989) On ranking of system components with respect to different improvement actions. Microelectron. Reliab. 29, 159164.CrossRefGoogle Scholar