Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 75 for “"Tyre"”.
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Deformations of the pneumatic tyre
… model is developed for the general pneumatic tyre. The model will permit the investigations of tyre deformations produced by arbitrary external loading, and will enable estimates to be made of the distributions of applied and reactive forces. The principle of Finite Elements is used to …
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Lateral tyre forces on off-road surfaces
A successful model for off-road tyres must be reliable, efficient and capable of reproducing and predicting the main system phenomena. Mathematical models are proposed for longitudinal, lateral and combined lateral and longitudinal force generation characteristics of off-road tyres. For a better …
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Investigation of Severe Abrasive Truck Tyre Wear
In the design of tyres, rolling resistance and wear resistance cannot be optimized at the same time. Tyres with high rolling resistance have good wear performance and good adhesion, whereas tyres with low resistance have poor wear performance and poor adhesion. It is therefore necessary to …
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Energy changes on deformation of a pneumatic tyre
… load-deflection characteristics of a pneumatic tyre and its associated changes in the pressure and volume of the air contained in it. A satisfactory results were obtained from this arrangement. From the measurements of the changes in volume and pressure of the air in the tyre, relationship was …
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Behaviour of waste tyre fibre-reinforced cement-stabilised Perth sand
… of the fibres from waste materials such as used tyres and carpets, which are available in large quantities worldwide, can be beneficial. Though significant research has been conducted on studying the behaviour of cement-stabilised soil, the effectiveness of using waste tyre fibres (TF) with …
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Generation, Characterisation and Potential Health Effects of Tyre Wear Particles
Every time we drive, as our tyres turn on tarmac, the rubber surface wears away, releasing micro and macroscopic tyre wear particles into our environment. Tyre wear particles are rapidly becoming a significant contributor to urban and suburban air pollution, driven by the move away from internal …
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Maintaining rainwater harvesting practices in southern Lebanon : the kaza of Tyre
… analysis of two specific towns in the kaza of Tyre is used to better understand what drives the local decision to maintain rainwater-harvesting practices. Calculations show that the estimated water supply from rainwater harvesting could be used to meet the basic water needs of the respective …
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Exploring waste tyre problems and sustainable waste management in the Tunisian context
Waste tyres represent one of the environmentally damaging fractions of the solid waste stream in Tunisia, where the problem of inefficient waste tyre management is endemic. This is easily identified by the piles of accumulating tyre waste located on both sides of many streets and in illegal places; …
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Tyre Inflation Pressure control to improve vehicle ride comfort on rough roads
Tyres behave similar to a spring and damper systems smoothing out road irregularities as the tyre rolls. Tyre stiffness and damping characteristics are largely influenced by the tyre pressure. As a result, tyre pressure has an influence on tyre enveloping and ride comfort. To take advantage of the …
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Scoping of Presence and Impacts of Tyre Wear Particles on Soil Systems
… concerns over environmental contamination by tyre wear particles (TWPs) have been growing. While previous studies have examined their abundance and ecotoxicological impacts in aquatic environments, research on their abundance in roadside soils—the primary sink of contamination—and their …
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Determination of the power losses on a tyre-mounted ore-grinding mill
… was to determine the power losses occurring on a tyre-mounted ore-grinding mill designed by Dorbyl Heavy Engineering for Mintek. In order to understand the type of losses occurring on this mill it was decided that a scaled model be built and tested. Such a model mill was designed through the …
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The relationship between occupational risk and labour relations in a tyre manufacturing company
The purpose of this study was to investigate the "working-interface concept" to determine whether a high risk work environment can influence general labour relations between employees and the employer. "Occupational Risk" was examined for this purpose to determine how an unfit workplace can …
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A thermomechanical motorsport tyre model applicable for real-time driver-in-the-loop simulations
… and vehicle development purposes. Since the tyre is a critical component affecting the overall behaviour of a road-going vehicle, tyre models offering reliable real-time simulation capabilities have therefore gained significant research interest in the field of vehicle dynamics. However, the …
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Optimization of the warm up process of the compression moulds for the tyre manufacturing industry
Submitted in fulfillment of the requirements of the degree of Master of Engineering: Mechanical Engineering, Durban University of Technology, Durban, South Africa, 2016.
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Investigation into the use of waste tyre shreds in reinforcement of sandy soils in South Africa
End-of-life tyres are a disposal problem resulting from the large volumes produced worldwide every year. Waste tyres are difficult to manage because of their sheer volume and the potential impacts on human health and environment. These discarded tyres, currently stockpiled and dumped in the open, …
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Optimizing the content and gradation of recycled tyre rubber particles to improve cracking resistance of concrete mortars
… regarding the influence of optimizing recycled tyre rubber particle grading and content in concrete mortar mixes in particular. This research investigated the influence of optimizing recycled tyre rubber particle grading and content in various concrete mortar mixes to improve their cracking …
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Flow Around Cambered and Yawed Pneumatic Tyres
… to study the flow around a deformed pneumatic tyre. An experimental rig is presented which enables an isolated tyre with Formula One inspired wheel geometry to be towed through a water towing tank at variable axle height, camber and yaw, with a highly accurate ground condition. This uses a PIV …
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The influence of alchemy and Rosicrucianism in William Shakespeare's Pericles, Prince of Tyre and The tempest, and Ben Jonson's The alchemist
… in William Shakespeare's Pericles, Prince of Tyre and The Tempest, and Ben Jonson's The Alchemist. Shakespeare's Final Plays are a dramatic experiment that ventures beyond realism, with a common symbolic pattern of loss and reconciliation that reflects the alchemical one of Man's Fall, …
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