Browsing Research Articles (University of Pretoria) by UP Author "Oberholster, Abraham Johannes (Abrie)"

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Constant speed tip deflection determination using the instantaneous phase of blade tip timing data

Diamond, D.H. (David); Heyns, P.S. (Philippus Stephanus); Oberholster, Abraham Johannes (Abrie) (Elsevier, 2021-03)

Blade Tip Timing (BTT) is a non-intrusive measurement technique that can be used to estimate the vibration characteristics of rotor blades during turbomachine operation. BTT uses proximity probes mounted into the turbomachine ...
Improved blade tip timing measurements during transient conditions using a state space model

Diamond, D.H. (David); Heyns, P.S. (Philippus Stephanus); Oberholster, Abraham Johannes (Abrie) (Elsevier, 2019-05)

Rotor blade condition monitoring is considered an important aspect of turbomachine management, especially with the current trend of systems operating at higher speeds, loads and temperatures. Blade Tip Timing is a non-intrusive ...
Shape principal component analysis as a targetless photogrammetric technique for condition monitoring of rotating machines

Gwashavanhu, Benjamin; Heyns, P.S. (Philippus Stephanus); Oberholster, Abraham Johannes (Abrie) (Elsevier, 2019-01)

Rotating machines are widely used in engineering for applications which include power generation and machine propulsion systems. These machines have to be accurately monitored and maintained to avoid system failures. ...

Now showing items 1-3 of 3

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