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A methodology for studying the dynamics of extended logistic systems

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  • Stephen C. Graves
  • Julian Keilson

Abstract

An extended logistic system is a well‐defined configuration of equipment, modules, inventories, and repair and replacement facilities modeling a complex, repairable system with on‐going repair. The design of such systems has been based largely on the static tools of inventory theory and reliability theory, i.e., on steady‐state distributions and on associated means and variances. Such static tools suppress the scale of real lime and ignore system persistence time in up‐states and persistence time in down‐states. A reasonably simple dynamic methodology is presented, focusing on system failure time as a more meaningful objective function for system‐design tradeoff studies. In the presence of good reliability, it is shown that different candidates for system failure time effectively merge to yield an unambiguous, single system failure time. Examples illustrating the importance of dynamic information for system design are given.

Suggested Citation

  • Stephen C. Graves & Julian Keilson, 1979. "A methodology for studying the dynamics of extended logistic systems," Naval Research Logistics Quarterly, John Wiley & Sons, vol. 26(2), pages 169-197, June.
    • Handle: RePEc:wly:navlog:v:26:y:1979:i:2:p:169-197
    DOI: 10.1002/nav.3800260202
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