Sökning: "ground vehicle"
Visar resultat 11 - 15 av 85 avhandlingar innehållade orden ground vehicle.
11. Vibrations from Railway Traffic : Computational Modeling and Analysis
Sammanfattning : The population is growing, and an increasing proportion of the population lives in urban areas. As a consequence, human exposure to noise and vibrations is increasing; two major sources being railway and road traffic. Larger and denser cities lead to a higher amount of traffic close to where people work and live. LÄS MER
12. Energy Consumption and Running Time for Trains : modelling of running resistance and driver behaviour based on full scale testing
Sammanfattning : The accuracy in determined energy consumption and runningtime of trains, by means of computer simulation, is dependent upon the various models used. This thesis aims at developing validated models of running resistance, train and of a generaldriver, all based on full scale testing. LÄS MER
13. Modelling of ground vibrations from railways using an analytical approach
Sammanfattning : .... LÄS MER
14. Passenger Car Wheel Aerodynamics
Sammanfattning : Current and future requirements for efficiency force the automotive industry to consider all aspects of reducing the energy consumption of road going vehicles. An important aspect of reducing fuel consumption is reduced aerodynamic drag, which at highway cruising speeds is dominating the total drag force for both cars and heavy goods vehicles. LÄS MER
15. Predictions of Aerodynamically Induced Wind Noise Around Ground Vehicles
Sammanfattning : Over the last decade wind noise has with few exceptions consistently generated a constant or even growing level of customer complaints to automotive companies world-wide. This can partly be explained by a relatively greater focus on engine, power-train and tire noise combined with a growing need to reduce weight in future cars. LÄS MER