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Reliability Analysis of Slab Transfer Equipment in Hot Rolling Furnace  

Bae, Young-Hwan (Department of Mechanical Education, Andong National University)
Publication Information
Journal of the Korean Society of Safety / v.21, no.1, 2006 , pp. 6-14 More about this Journal
Abstract
The development of automatic production systems have required intelligent diagnostic and monitoring functions to overcome system failure and reduce production loss by the failure. In order to perform accurate operations of the intelligent system, implication about total system failure and fault analysis due to each mechanical component failures are required. Also solutions for repair and maintenance can be suggested from these analysis results. As an essential component of a mechanical system, a bearing system is investigated to define the failure behavior. The bearing failure is caused by lubricant system failure, metallurgical deficiency, mechanical condition(vibration, overloading, misalignment) and environmental effects. This study described slab transfer equipment fault train due to stress variation and metallurgical deficiency from lubricant failure by using FTA.
Keywords
FTA(fault tree analysis); diagnostic method; reliability analysis; lubrication; friction coefficient; stress variation; metallugical deficiency; fault train;
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