Abstract
![CDATA[Examining the cross-section of a shaft that has ruptured due to fatigue often reveals beach markings that can be approximated as being elliptical in shape; as such, the front of a crack can be modelled as an ellipse. In this study, an existing elliptical crack model was improved upon to study cracks with a range of elliptical-front crack curvatures. The area moments of inertia of the total uncracked area of the shaft were calculated for a number of crack depths and crack curvatures, where it was seen that cracks with greater curvature resulted in stiffer shaft models. The development of the area moment of inertia models serve as a preliminary step for obtaining the time-varying stiffness matrix of cracked shafts with differing crack curvature and to consequently obtain the dynamic behaviour of these rotor systems.]]
Original language | English |
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Title of host publication | Proceedings of Acoustics 2016: The Second Australasian Acoustical Societies Conference, 9-11 November 2016, Brisbane, Queensland, Australia |
Publisher | The Australian Acoustical Society Queensland Division |
Number of pages | 10 |
ISBN (Print) | 9780909882266 |
Publication status | Published - 2016 |
Event | Australian Acoustical Society. Conference - Duration: 9 Nov 2016 → … |
Conference
Conference | Australian Acoustical Society. Conference |
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Period | 9/11/16 → … |
Keywords
- cracks
- shafts
- vibration