Sökning: "ground vehicle"

Visar resultat 36 - 40 av 85 avhandlingar innehållade orden ground vehicle.

  1. 36. Under-body and Diffuser Flows of Passenger Vehicles

    Författare :Ture Jesper Marklund; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Bluff bodies; Vehicle aerodynamics; CFD; Wake flow; Boundary layer;

    Sammanfattning : Energy efficient vehicles will be required to meet future emission and fuel consumption requirements. Customers require reduced fuel consumption due to increasing fuel prices and the environmental issues, are drivers to reduce CO2. LÄS MER

  3. 37. Minimize Vortex Drag of a Passenger Car

    Författare :Ture Jesper Marklund; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Boundary layer; Bluff bodies; Vehicle aerodynamics; Wake flow; CFD;

    Sammanfattning : The aerodynamic drag force is the single biggest resistance force for a passenger car toovercome at highway speeds. Since all driving resistance forces can be directly linked tofuel consumption this has become a significant priority in recent years. LÄS MER

  4. 38. Prediction and Optimisation of Traffic Noise. A Study on Noise Barriers and Shielded Areas

    Författare :Pontus Thorsson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; city canyon; absorption; city noise; insertion loss; traffic noise; soundscape; silent side; noise barrier; ground impedance;

    Sammanfattning : The main contribution of noise levels in cities is today road traffic. The strongest source for all road vehicles is most often the tyre-road contact. This source position close to the ground is fortunate with respect to secondary noise abatement measures, such as absorbing road surfaces or noise barriers. LÄS MER

  5. 39. Increasing Autonomy of Unmanned Aircraft Systems Through the Use of Imaging Sensors

    Författare :Piotr Rudol; Andrzej Szalas; Pascual Campoy; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; UAV; UAS; UAV autonomy; human-body detection; color-thermal image fusion; vehicle tracking; geolocation; UAV indoor navigation;

    Sammanfattning : The range of missions performed by Unmanned Aircraft Systems (UAS) has been steadily growing in the past decades thanks to continued development in several disciplines. The goal of increasing the autonomy of UAS's is widening the range of tasks which can be carried out without, or with minimal, external help. LÄS MER

  7. 40. Service Logic in Digitalized Product Platforms : A Study of Digital Service Innovation in the Vehicle Industry

    Författare :Soumitra Chowdhury; Maria Åkesson; Michel Thomsen; Magnus Bergquist; Birgitta Bergvall-Kåreborn; Högskolan i Halmstad; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; digital services; premises; digital service innovation; digitalized product platforms; service logic; Data- och informationsvetenskap; Computer and Information Sciences Computer Science; digital Services; premises; digital service innovation; digitalized product platforms;

    Sammanfattning : The digitalization of products has become an important driver for service innovation in manufacturing firms. The embedding of digital technology in previously non-digital products creates digitalized product platforms that enable digital service innovation. LÄS MER