Performance-based standards for South African car-carriers
| dc.contributor.author | de Saxe, Christopher Charles | |
| dc.date.accessioned | 2013-01-31T08:08:35Z | |
| dc.date.available | 2013-01-31T08:08:35Z | |
| dc.date.issued | 2013-01-31 | |
| dc.description.abstract | Until recently, car-carriers in South Africa operated under abnormal load permits allowing a finite relaxation of legal height and length limits. This practice is being phased out, and exemption will only be granted if a car-carrier complies with the Australian Performance-Based Standards (PBS) scheme. A low-speed turning model was developed in Matlab®, and used to benchmark the tail swing performance of the existing South African car-carrier fleet. About 80 per cent of the fleet were shown to not comply with the 0.30 m tail swing limit, due to South Africa’s inadequate rear overhang legislation which permits tail swing of up to 1.25 m. TruckSim® was used to conduct detailed PBS assessments of two car-carrier designs. Critical performance areas were identified; most notably yaw damping and tail swing for the truck and tag-trailer combination, and maximum of difference and difference of maxima for the tractor and semitrailer combination. These were remedied through appropriate design modifications. The Matlab® model was shown to be versatile, accurate and efficient, with potential for future application. The TruckSim® assessments highlighted complexities unique to car-carriers in a PBS context and showed how these may be addressed. This research has shown the benefit of PBS for heavy vehicles, and has guided car-carrier design to improve safety. | en_ZA |
| dc.identifier.uri | http://hdl.handle.net/10539/12333 | |
| dc.language.iso | en | en_ZA |
| dc.title | Performance-based standards for South African car-carriers | en_ZA |
| dc.type | Thesis | en_ZA |
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