Sökning: "Driving resistances"

Hittade 4 uppsatser innehållade orden Driving resistances.

  1. 1. Horisontalstabilisering av småhus i trä: en jämförelse av dimensioneringsmetoder

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Avdelningen för Konstruktionsteknik

    Författare :Alice Stilgård; Amanda Bender; [2022]
    Nyckelord :horisontalstabilisering; skjuvbärförmåga; småhus i trä; skivverkan; vindlast; partiell förankring; full förankring; nyanserad plastisk dimensionering; Metod A; Metod B; elastisk metod; horisontell bärförmåga; träregelstomme; vindstabilisering; Technology and Engineering;

    Sammanfattning : In the last ten years, the number of building permits applied for houses with timber frame structure has more than doubled. Today, there is no general requirement to establish horizontal capacity, but is something that can be demanded and that many structural engineers have occasionally experienced as problematic. LÄS MER

  3. 2. Modelling and simulation of vibratory driven sheet piles - Development of a stop criterion

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Byggnadsmekanik; Lunds universitet/Institutionen för byggvetenskaper

    Författare :Johannes Jonsson; Anton Andersson; [2021]
    Nyckelord :Vibratory driving; sheet pile; Technology and Engineering;

    Sammanfattning : During excavations, steel sheet piles are often installed through vibratory driving, to establish a retaining wall that resists soil instability and ground water leakage. The method of vibratory driving is that the sheet pile is driven into the soil with a vertical vibratory motion. This is especially effective in soft soils. LÄS MER

  4. 3. Investigation of the transient nature of rolling resistance on an operating Heavy Duty Vehicle

    Master-uppsats, Umeå universitet/Institutionen för fysik

    Författare :Petter Lundberg; [2014]
    Nyckelord :Rolling resistance; Air drag; Heavy Duty Vehicles; Vehicle dynamics; Complete vehicle test; Coastdown; Effective radius; ACEA; Pneumatic tires; Driving resistances; Energy efficiency; Rullmotstånd; Luftmotstånd; Tunga fordon; Fordonsdynamik; Helfordonstest; Utrullningstest; Effektiv radie; ACEA; Pneumatiska däck; Körmotstånd; Energieffektivitet.;

    Sammanfattning : An operating vehicle requires energy to oppose the subjected driving resistances. This energy is supplied via the fuel combustion in the engine. LÄS MER

  5. 4. Study on optimal train movement for minimum energy consumption

    Master-uppsats, Akademin för innovation, design och teknik

    Författare :Panagiotis Gkortzas; [2013]
    Nyckelord :Optimal control; train energy consumption; dynamic programming; Hamilton-Jacobi-Bellman equation;

    Sammanfattning : The presented thesis project is a study on train energy consumption calculation and optimal train driving strategies for minimum energy consumption. This study is divided into three parts; the first part is a proposed model for energy consumption calculation for trains based on driving resistances. LÄS MER