Analysis of k-out-of-n Redundant Reliability Systems with Multiple Constraints

Issue: Vol.4 No.2

Authors:

Dr. A. Sridhar (Vignan’s Institute of Engineering for Women, Visakhapatnam)

S. Pavankumar (SBIT Engineering College, Khammam)

Dr. Y. Raghunatha Reddy (Rayalaseema University, Kurnool)

Dr. C. Umashankar (Rayalaseema University, Kurnool)

Keywords: IRM, k-out-of-n systems, heuristic, Dynamic, Langrangean and Sensitivity Analysis.

Abstract: 

In today’s competitive environment organizations are being constantly challenged to improve performance and reduce costs. By effectively applying reliability engineering techniques you can achieve dramatic improvements in the reliability and availability of process plant resulting in savings of up to 10% in capital costs and similar savings in plant operation. Generally the reliability of a system is treated as function of cost, but in many real life situations other considerations apart from conventional cost constraint like weight, volume, size, space etc., play vital role in optimizing the system reliability. Quite a few IRM’s are reported with cost constraint only in optimizing the system reliability. As the literature informs that few authors mentioned IRM’S with Redundancy and this paper focuses a novel method of optimizing a Redundant IRM with multiple constraints to encounter the hidden impact of additional constraints apart from the cost constraint while the system is optimized by considering the k-out-of-n configuration system.

References:

(1) Balaguruswamy. E. (2002). Reliability engineering -Tata McGraw Hill, New Delhi.

(2) Aggarwal, K.K., Gupta.J.S. (1975). On minimizing the cost of reliable systems, IEEE Transactions on Reliability, Vol.R-24, No.3.

(3) Mishra K.B. (1972). Reliability Optimization of series - parallel system, IEEE Transactions on Reliability, Vol R[1]21, No.4.

(4) Mishra K.B. (1971). A method of solving Redundancy optimization Problems, IEEE Transactions on Reliability, Vol R-20, No.3.

(5) Fan. L.T & Wang, Tillman. (1997). Optimization of system reliability IEEE Transactions on Reliability. Vol R-16.

(6) Aggarwal, K.K., Mishra K.B., Gupta.T.S.(1975). ‘‘Reliability evaluation: A comparative Study of different techniques’’, Microelectronics and Reliability, Vol.14, pp.49-56.

(7) Mettas A. (2000). Reliability Allocation and Optimization for complex systems, Proceedings Annual Reliability and Maintainability Symposium, Los Angeles, California, USA.

(8) Ushakov-Levitin-Lisnianski: (2002). Multi State system reliability: from theory to Practice: proceedings of the 3rd international conference on mathematical methods in reliability, Trondheim, Norway, 635-638.

(9) Way Kuo and Rajendra Prasad V. (2000). ‘‘An Annotated overview of system reliability Optimization’’, IEEE Transactions on Reliability, Vol. 49, No. 2, PP. 176-187