The Magic Formula and SWIFT tyre models are well-known semi-empirical tyre models for vehicle dynamic simulations. Up to now, the only way to account for inflation pressure changes is to identify all model parameters for each inflation pressure that has to be considered. Since this is a time consuming and consequently expensive activity, research at TNO and Eindhoven University of Technology wa...

At this conference, the subject of tyre/road noise is on the agenda to a greater extent than ever before. This paper aims at giving an insight into the past, present and future of tyre/road noise emission in the society as well as its control. This is made by means of exploring some myths and realities related to the subject. The following myths are explored: 1. Tyre/road noise has become a con...

Studies on the effects of off-road driving on soils were conducted in the Makuleke Contractual Park of the Kruger National Park. The studies were conducted on three different soils with different textures and soil compactibilities. Traffic pressure was applied with a game drive vehicle loaded with 11 sand bags, each weighing 70 kg. This gave a total vehicle mass of 3,795 kg, simulating a vehicl...

Investigation of the stationary load-deflection behaviour of tyres reveals many details of the structure and the rubber to road friction properties. These characteristics are fundamental to the understanding of the behaviour of both the stationary and the rolling tyre. In connection with racing, tyre static stiffness characteristics are of interest as they reflect on the controllability of the ...

Problem statement: Nowadays, the use of waste tyre in concrete has become technically feasible and the tyre mixed concrete is light weight and called as rubberized concrete. Still the research is going on to explore basic engineering properties such as transport properties viz, acid absorption test, water absorption tests, impact resistance, modulus of elasticity, dynamic modulus and so on. In ...

An effective way of improving the efficiency of tyre tube development is integrating, analysis and simulation into design, testing and manufacturing process. This allows designers and engineers to carry out analysis and simulation as an integrated part of tyre tube development process, and thus greatly reducing prototypes and physical testing. This paper deals with the analysis of tyre tube flu...

This paper presents a structural model for an unloaded tyre, based on a three-dimensional flexible ring on an elastic foundation. The ring represents the belt and the elastic foundation represents the tyre sidewall. The model is valid till 300 Hz and includes a model of the wheel and the air cavity. This makes the model suitable for the prediction of structure borne interior noise. Unlike most ...

The tyre-road contact area was studied visually by means of a high-speed camera and three accelerometers fixed to the inner liner of the tyre carcass. Both methods show a distorted contact area in wet conditions, but interesting differences appeared. First, the contact area in full aquaplaning seems strongly distorted on a glass plate when subjected to visual inspection, while accelerometers in...

A secure slip knot is very important in the field of arthroscopy. The new giant knot, developed by the first author, has the properties of being a one-way self-locking slip knot, which is secured without additional half hitches and can tolerate higher forces to be untied.