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Überwachung hybrider Schrägkugellager in Luftfahrttriebwerken

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A concept to monitor hybrid angular ball bearings is presented. Interactions of damaged balls with the steel raceways are shown. Week points in calculating ball spinning speeds are discussed and methods to improve this are proposed. Results based on sensors measuring structure borne noise are compared to results of vibration sensors and metal particle sensors. It is shown that a detection of bearing failures is possible at an early stage of degradation. A concept for a live time model that estimates the remaining time after detecting a bearing failure is delivered. The governing parameters to estimate remaining life after detecting a bearing failure are identified. A concept of a self-monitoring unit is introduced.

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Überwachung hybrider Schrägkugellager in Luftfahrttriebwerken, Rudolf Lück

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Année de publication
2018
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