| Article ID: | iaor20033122 | 
| Country: | Serbia | 
| Volume: | 13 | 
| Issue: | 1 | 
| Start Page Number: | 85 | 
| End Page Number: | 94 | 
| Publication Date: | Jan 2003 | 
| Journal: | Yugoslav Journal of Operations Research | 
| Authors: | Jankovi Slobodanka, Davidovi Tatjana | 
We study the two-unit standby system with repair and with preventive maintenance. Preventive maintenance is introduced in order to make the lifetime of the system longer. Using Monte-Carlo method we simulate the work of the two-unit system and we analyze the influence of different types of preventive maintenance on reliability of the system. Monte-Carlo method enables us to find estimates of various parameters relevant to the system for which there exist no explicit formulas in the literature.