An analysis of the friction mechanism on brake gear of railway rolling stock
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie/South African Journal of Science and Technology
| Field | Value | |
| Title | An analysis of the friction mechanism on brake gear of railway rolling stock ’n Ontleding van die wrywingsmeganisme op remstelsels van spoorwegvoertuie | |
| Creator | Barnard, J. H. | |
| Description | Friction energy dissipation at an interface involves a wide range of interdisciplinary concepts. As the demand for higher operating speeds increased, the limitations of cast iron as the traditional friction material for rail transport brakes became more apparent. Only through an intensive analysis of the interfacial interaction between the brake block and brake path could the problems encountered with other promising friction materials be solved. The article deals with the difficulties pertaining to the early composite materials, and indicates how these were overcome by the understanding and implementation of new techniques not previously associated with conventional systems connected with railway braking. Two composite materials, that is 840/N for locomotives and freight wagons where mass oriented momentum dominates, and high friction composite 655/C for passenger vehicles with a predominantly speed-oriented momentum, are presently used. Wrywingsenergievernietiging by ‘n tussenvlak betrek ’n groot verskeidenheid interdissiplinêre begrippe. Nagelang hoër snelheidsvereistes aan spoorvervoer gestel is, is steeds groter probleme met die tradisionele gietyster as remmateriaal ervaar. Verbeterings is verkry met ander wrywingsmateriale, maar slegs deur ’n diepgaande ontleding te maak van die kompiekse interaksies wat plaasvind tussen remblok en rempad, kon die probleme wat met samegestelde remblokmateriaal ondervind is, opgelos word. Die artikel behandel sekere van die probleme wat met die ouer materiale ondervind is en dui aan hoe die probleme oorkom is deur die begrip en aanwending van nuwe tegnieke wat voorheen nie met die remming van spoorbaanvoertuie vereenselwig is nie. Twee samestellings, naamlik 840/N, van toepassing op lokomotiewe en goederewaens waar massa-georiënteerde momentum oorheers, asook die hoë-wrywingsamestelling 655/C vir passasiersrytuie met snelheid georiënteerde momentum, word tans gebruik. | |
| Publisher | AOSIS | |
| Date | 1985-03-18 | |
| Identifier | 10.4102/satnt.v4i4.1055 | |
| Source | Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie; Vol 4, No 4 (1985); 171-180 Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie; Vol 4, No 4 (1985); 171-180 2222-4173 0254-3486 | |
| Language | eng | |
| Relation |
The following web links (URLs) may trigger a file download or direct you to an alternative webpage to gain access to a publication file format of the published article:
https://journals.satnt.aosis.co.za/index.php/satnt/article/view/1055/2159
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