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Browsing by Author "Mahadevan, Sankar"

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    Developing a Vehicle Hydroplaning Simulation using Abaqus and CarSim
    Mahadevan, Sankar (Virginia Tech, 2016-04-26)
    Tires are the most influential component of the vehicle as they constitute the only contact between the vehicle and the road and have to generate and transmit forces necessary for the driver to control the vehicle. Hydroplaning is a phenomenon which occurs when a layer of water builds up between the tires of a vehicle and the road surface which leads to loss of traction that prevents the vehicle from responding to control inputs such as steering, braking or acceleration. It has become an extremely important factor in the automotive and tire industry to study the factors affecting vehicle hydroplaning. Nearly 10-20% of road fatalities are caused by lack of traction on wet surfaces. The tire tread pattern, load, inflation pressure, slip and camber angles influence hydroplaning to a great extent. Finite Element Analysis, although computationally expensive, provides an excellent way to study such Fluid Structure Interactions (FSI) between the tire-water-road surfaces. Abaqus FSI CEL approach has been used to study tire traction with various vehicle configurations. The tire force data obtained from the Finite Element simulations is used to develop a full vehicle hydroplaning model by integrating the relevant outputs with the commercially available vehicle dynamics simulation software, CarSim.
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    Review of vehicle hydroplaning and tire-pavement interactions
    Mahadevan, Sankar; Taheri, Saied (2017)
    This paper deals with the review of vehicle hydroplaning. The physics of hydroplaning, factors influencing hydroplaning and effective methods for preventing hydroplaning have been discussed. Tire tread pattern and pavement grooving are the widely used methods to curb hydroplaning. The paper discusses the work carried out by researchers on studying the effectiveness of both methods. A systematic comparison of the two methods has been presented and the advantage of each has been outlined. Computational methods for simulating hydroplaning tests have also been discussed. Future scope in hydroplaning research involving mapped terrain-treaded tire interactions, improved fluid structure interaction formulations and intelligent tire systems have also been discussed.