期刊
INTERNATIONAL JOURNAL OF MINING RECLAMATION AND ENVIRONMENT
卷 26, 期 4, 页码 309-323出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/17480930.2011.622477
关键词
drum shearer; reliability; failure rate; cable system; preventive maintenance
资金
- Hamedan University of Technology (Iran)
- CAAM, Lulea University of Technology
In this article, the reliability of the cable system of a drum shearer machine was studied and analysed using operation and maintenance data from an Iranian mine for a period of two years. The tests for trend and serial correlation show that the times between successive failures for the cable system are not independent and identically distributed. A goodness-of-fit test shows that the power law process model provides a good fit to the failure data of this system. After parameter estimation for the power law model, reliability and failure rate plots were obtained. Based on analysis and results, a period of 125 h was defined as the reliability-based maintenance interval for the cable system of the shearer. The analysis shows that, by using this strategy, the reliability of the system will improve by at least 50%.
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