PRELIMINARY RELIABILITY OF BEARINGS
Keywords:
preliminary reliability, bearings, durability, fault tree analysisAbstract
The use of bearings in very different domains, characterized by working conditions with high variety, implies that the failing modes of the bearings are various, also. The purpose of using reliability models and statistical models for the analysis of the experimental results, obtained by observing different types of failures and deterioration phenomena, is represented by evaluating the preliminary reliability of the products. As a consequence, the overall look at the lifespan of products has to allow for the global accounting of failing possibilities, through realist intertwining of the accidental causes for failing with the controlled, determined ones. The image has to be filled in with its static aspect. It is understood that the preliminary reliabilities calculated have to be considered as static values with resulting distributions, accounting for the fact that all the service conditions (cycle, precision, temperature, environment etc.), external loadings, dimensions and material properties present a specific variability
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