Analysis of design requirements for early failure detection in a gear test rig

University essay from KTH/Skolan för industriell teknik och management (ITM)

Abstract: Gears are the heart of many machines, being its function transform and transmit torque. This work is a study of adequate design requirements, in particular, the best methodology to early detect gear fatigue failure using a gear test rig, an FZG test machine. The study used the widely proved QFD analysis technique that introduces the client in the design process by using a matrix system. All available relevant literature on the subject and interviews with relevant people in the field were sources of information for the development of this technique. In that way, a mapping is presented, showing the most common fatigue failure modes and available detection methods.  As a result of the investigation, the most suitable technique for the early gear failure detection in the FZG rig to be a combination of vibration analysis and acoustic emissions analysis, these techniques present the best practice at the moment and also possible to implement. However, other technologies are also presented in the report.

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