DOI: 10.5937/jaes9- 1202
This is an open access article distributed under the CC BY-NC-ND 4.0 terms and conditions.
Volume 9 article 210 pages: 456 - 464
risk increases more and more every day. One of the factors that affect this
risk is product warranty. Warranty is a powerful marketing instrument for the
manufacturer and a good protection for both the manufacturer and the customer,
but it always involves additional costs to the manufacturer. These costs depend
on the product reliability and the warranty parameters. This paper deals with
the optimization of these parameters for known product failure distribution to
reduce the warranty costs to the manufacturer while retaining the promotional
function of the warranty. Combination free replacement and pro-rata warranty
policy is chosen as a model and the length of free replacement and pro-rata
policy periods are varied, as well as the coeffi cients that defi ne the pro-rata
cost function. Warranty costs are obtained by using analytical equations and by
simulation. The obtained results are shown and discussed and some concluding
remarks are given.
This paper is a part
of two important projects of The Ministry of Science and Technological
Development of Serbia (project number TR 35045 – “Scientifi c-Technological
Support to Enhancing the Safety of Special Road and Rail Vehicles” and TR 35040
– “Developed New Methods for Diagnosis and Examination Mechanical Structures”).
The authors wish to express their gratitude to the investors in these projects,
and to all persons who helped making this paper better.
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