A Model for Determining Optimal Preventive Maintenance Intervals for Tanks.
Abstract
A maintenance system is built on preventive and corrective maintenance. Of these two, preventive maintenance is that which permits planning in advance. It is based on scheduled treatments done at different levels and at different frequencies. In tanks in action, preventive maintenance done at the intermediate level has the greatest influence on the efficiency of the maintenance system. In this study, the efficiency of the maintenance system will be checked by performing a controlled experiment, using different intervals between planned treatments at the intermediate level. The basis of the mathematical model developed is the assumption that a change in the frequency of treatment will cause a change in the number of failures. The model also takes into consideration other variables, such as mean time between maintenance (both preventive and corrective) and total number of treatments, subject to the constraints of availability and reliability. In addition, a method is presented for determining the optimum sample size for such an experiment. The objective of the experiment, after collecting data and applying the mathematical model to the data, is to determine the optimal maintenance system--that system which yields the best ratio of combat effectiveness to cost. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1979
- Accession Number
- ADA085053
Entities
People
- Itzhak Raveh
Organizations
- Naval Postgraduate School