ISSN 1842-4562
Member of DOAJ

Harmonization Models for Designing Compound Systems


Avner BEN-YAIR
Dimitri GOLENKO-GINZBURG


Keywords

compound system, engineering design, cost-reliability optimization, harmonization model

Abstract

A system to be designed and developed is composed of several sub-systems with complex configuration. The relationship between the sub-systems and the system cannot be fully expressed in analytical terms and has a high degree of uncertainty. Each sub-system can be designed and developed independently and is a subject of several possible measurable versions including both the cost of designing and creating the sub-system and its reliability. The problem is to assign reliability and cost requirements in the system design phase to all sub-systems, in order to: • achieve a specified reliability goal for the system, and • minimize the total costs of designing and creating of all the sub-systems. The corresponding dual problem is being solved as well. The third problem centers on optimizing the system’s structure in order to maximize the system’s utility by means of implementing local parametrical reliability and cost values.A system to be designed and developed is composed of several sub-systems with complex configuration. The relationship between the sub-systems and the system cannot be fully expressed in analytical terms and has a high degree of uncertainty. Each sub-system can be designed and developed independently and is a subject of several possible measurable versions including both the cost of designing and creating the sub-system and its reliability. The problem is to assign reliability and cost requirements in the system design phase to all sub-systems, in order to: • achieve a specified reliability goal for the system, and • minimize the total costs of designing and creating of all the sub-systems. The corresponding dual problem is being solved as well. The third problem centers on optimizing the system’s structure in order to maximize the system’s utility by means of implementing local parametrical reliability and cost values.



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