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The aero-engine is the heart of an airplane. Operational reliability assessment that aims to identify the reliability level of the aero-engine in the service phase is of great significance for improving flight safety. Traditionally, reliability assessment is carried out by statistical analysis on large failure samples. Because the operational reliability of a specific aero-engine is an individual...
Head wear is becoming inevitable for currently hard disk drives, as they used a nano-level or sub-nano-level spacing to read and store data. Accurate characterization of the wear process can help understand the wear mechanism of head disk interaction and thus is critical in predicting the future evolution of wear and in guiding the design of HDDs of later vintages. Our previous work has put effort...
Nonlinear stiffness of rolling bearing is the root cause of the nonlinearity of a bearing rotor system. In this paper, bearing stiffness is calculated with a complete model for angular contact ball bearing. The bearing stiffness matrix is then integrated with finite element model of a rotor to study the nonlinear stiffness of rolling bearings. Calculated results are compared with the results of FAG's...
In information age, reliability of digital manufacturing equipment has a large impact on throughput, productivity and executing predictive maintenance. Accurate reliability forecasts can provide a good assessment of machine performance in order to execute predictive maintenance effectively. This paper investigates a methodology of applying support vector machines (SVMs) to predict reliability in computerized...
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