UKZN PhD Engineering student Mr Daniel Kubelwa received the Best Student Paper Award at the World Congress of Engineering’s (WCE) 2016 International Conference of Applied and Engineering Mathematics in London.
The Conference was organised by the International Association of Engineers (IAENG) - a non-profit international association for engineers and computer scientists.
The three-day paper presentation held at the Imperial College’s South Kensington campus, attracted 385 participants from about 50 countries.
Co-ordinated by an IAENG committee, the Conference was co-chaired by Professor Alexander M Korsunsky of the University of Oxford, Professor Andrew Hunter of the University of Lincoln, Professor David WL Hukinsn of the University of Birmingham, and Professor Len Gelman of Cranfield University.
According to Kubelwa, the Conference serves as an excellent platform for the international engineering community to meet and exchange ideas. ‘The conference also strikes a balance between theoretical development and applications,’ he said.
In his paper titled: “Statistical Modelling of Bending Stress in ACSR Overhead Transmission Line Conductors subjected to Aeolian Vibrations-I”, Kubelwa explained a new and simple model ?to assess the bending stress in power transmission line conductors, which was developed using experimental data and statistical techniques.
‘The bending stress of a power line conductor is an important factor in the evaluation of its life expectancy, given as half a century by the Poffenberger-Swart Formula (idealised model),’ said Kubelwa.
‘Previous research raised some concern as to the accuracy of this latter model as observed when compared to experimental data.’
The experimental work was performed at UKZN’s Vibration Research and Testing Centre (VRTC) and on four of the most used overhead line conductors in South Africa.
Kubelwa’s trip to the Conference was financed by a grant he won at UKZN’s College of Agriculture, Engineering and Science Postgraduate Research Day as well as a travel award he received from the College.
He thanked his co-authors, VRTC grant holder Dr Richard Loubser and Dr Konstantin Papailiou of CIGRE in Switzerland.
He also thanked VRTC lab technician Mr Pravesh Moodley, Mr Logan Pillay of the ESKOM academy, and Mr Thabani Nene of Pfisterer SA.