Abstract
The reliability of a multistage system with several components in each stage can be improved either by using more reliable components, or by adding redundant components in parallel in any stage. In many practical situations where reliability enhancement is involved, the decision making is complicated because of the presence of several mutually conflicting goals. For example, in the reliability based design of a system, the designer may be required to maximize the reliability and minimize the cost, weight or volume. This work considers the problem of reliability allocation for multistage systems with components having time-dependent reliability. Two multiobjective optimization techniques are presented, coupled with heuristic procedures, to solve the mixed integer nonlinear programming problems. A generalization of the problem in the presence of vague information results in an ill-structured reliability apportionment problem. The solution of such multiobjective problems is also presented in the present work using the techniques of fuzzy optimization.
| Original language | English |
|---|---|
| Pages (from-to) | 253-261 |
| Number of pages | 9 |
| Journal | Reliability Engineering and System Safety |
| Volume | 37 |
| Issue number | 3 |
| DOIs | |
| State | Published - Jan 1 1992 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Mechanical Engineering
- Safety, Risk, Reliability and Quality
Cite this
Reliability and redundancy apportionment using crisp and fuzzy multiobjective optimization approaches. / Rao, Singiresu S; Dhingra, A. K.
In: Reliability Engineering and System Safety, Vol. 37, No. 3, 01.01.1992, p. 253-261.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Reliability and redundancy apportionment using crisp and fuzzy multiobjective optimization approaches
AU - Rao, Singiresu S
AU - Dhingra, A. K.
PY - 1992/1/1
Y1 - 1992/1/1
N2 - The reliability of a multistage system with several components in each stage can be improved either by using more reliable components, or by adding redundant components in parallel in any stage. In many practical situations where reliability enhancement is involved, the decision making is complicated because of the presence of several mutually conflicting goals. For example, in the reliability based design of a system, the designer may be required to maximize the reliability and minimize the cost, weight or volume. This work considers the problem of reliability allocation for multistage systems with components having time-dependent reliability. Two multiobjective optimization techniques are presented, coupled with heuristic procedures, to solve the mixed integer nonlinear programming problems. A generalization of the problem in the presence of vague information results in an ill-structured reliability apportionment problem. The solution of such multiobjective problems is also presented in the present work using the techniques of fuzzy optimization.
AB - The reliability of a multistage system with several components in each stage can be improved either by using more reliable components, or by adding redundant components in parallel in any stage. In many practical situations where reliability enhancement is involved, the decision making is complicated because of the presence of several mutually conflicting goals. For example, in the reliability based design of a system, the designer may be required to maximize the reliability and minimize the cost, weight or volume. This work considers the problem of reliability allocation for multistage systems with components having time-dependent reliability. Two multiobjective optimization techniques are presented, coupled with heuristic procedures, to solve the mixed integer nonlinear programming problems. A generalization of the problem in the presence of vague information results in an ill-structured reliability apportionment problem. The solution of such multiobjective problems is also presented in the present work using the techniques of fuzzy optimization.
UR - http://www.scopus.com/inward/record.url?scp=0026476842&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0026476842&partnerID=8YFLogxK
U2 - 10.1016/0951-8320(92)90131-4
DO - 10.1016/0951-8320(92)90131-4
M3 - Article
AN - SCOPUS:0026476842
VL - 37
SP - 253
EP - 261
JO - Reliability Engineering and System Safety
JF - Reliability Engineering and System Safety
SN - 0951-8320
IS - 3
ER -