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A dynamic nonlinear constrained optimal replacement model

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  • Peter J. Kalman
  • Bengt‐Arne Wickström

Abstract

A stochastically constrained optimal replacement model for capital equipment is constructed. Each piece of capital equipment, or machine, is characterized by its age and “utility” or “readiness” class. The readiness of a machine at any age is a stochastic function of its initial utility class and its age. The total discounted replacement cost of several replacement streams, each commencing with an initial machine, is minimized with respect to the replacement age and initial utility class of each machine, subject to a readiness constraint stating the lower bound on the expected number of machines in each utility class at any time. A general solution procedure is outlined and a specific case is solved in detail.

Suggested Citation

  • Peter J. Kalman & Bengt‐Arne Wickström, 1976. "A dynamic nonlinear constrained optimal replacement model," Naval Research Logistics Quarterly, John Wiley & Sons, vol. 23(4), pages 639-651, December.
    • Handle: RePEc:wly:navlog:v:23:y:1976:i:4:p:639-651
    DOI: 10.1002/nav.3800230409
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