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The Origins Of White Etching Cracks And Their Significance To Rolling Bearing Failures

A new theory for premature failures in wind turbine bearing steel is proposed, an experimental study is presented as validation of the theory

Date : 01/02/2019

Francesco

Author Information

Uploaded by : Francesco
Uploaded on : 01/02/2019
Subject : Design and Technology

Highlights

A specific stress sequence causes both WECs and unpredictable failures concurrently.

WECs are a symptom of this stress history and not a direct cause of failure.

The relevant stress history consists of early short-lived high stress, followed by prolonged moderate stress.

Damage potential of this stress history is not accounted for by Palmgren-Miner rule, hence the `upredictable` failure lifetimes.

No specific oil chemistry, SRR or frictional energy are required to form WECs.

This resource was uploaded by: Francesco

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