Sökning: "Ride"

Visar resultat 6 - 10 av 98 avhandlingar innehållade ordet Ride.

  1. 6. On Active Secondary Suspension in Rail Vehicles to Improve Ride Comfort

    Författare :Anneli Orvnäs; Sebastian Stichel; Rickard Persson; Roger Goodall; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; rail vehicle; active secondary suspension; ride comfort; sky-hook damping; H∞ control; multi-body simulations; on-track tests; Järnvägsgruppen - Gröna tåget; Järnvägsgruppen - Gröna tåget; Järnvägsgruppen - Fordonsteknik; Järnvägsgruppen - Fordonsteknik;

    Sammanfattning : One way to make rail vehicles a competitive means of transportation is to increase running speed. However, higher speeds usually generate increased forces and accelerations on the vehicle, which have a negative effect on ride comfort. With conventional passive suspension, it may be difficult to maintain acceptable passenger comfort. LÄS MER

  3. 7. Front seat passengers’ experience of ride comfort and NVH in modern cars

    Författare :Xiaojuan Wang; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Ride comfort; Sound and Vibration;

    Sammanfattning : Due to the refinements in combustion-engine and electric cars, ride comfort has become a prominent attribute when it comes to developing cars in the future. A variety of factors, such as seat, seatbelt, sound and vibration, have been shown to influence perceived overall ride comfort in passenger cars. LÄS MER

  4. 8. Active Lateral Secondary Suspension in a High-Speed Train to Improve Ride Comfort

    Författare :Anneli Orvnäs; Sebastian Stichel; Viktor Berbyuk; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; railway; active suspension; ride comfort; sky-hook; Hinf; multi-body simulations; on-track tests; Vehicle engineering; Farkostteknik;

    Sammanfattning : Active secondary suspension in trains has been studied for a number of years, showing promising improvements in ride comfort. However, due to relatively high implementation and maintenance costs, active technology is not being used in service operation to a large extent. LÄS MER

  5. 9. On impacts and ride-through of voltage sags exposing line-operated AC-machines and metal processes

    Författare :Fredrik Carlsson; KTH; []
    Nyckelord :Rolling mill; Blast furnace; Power Quality; Synchronous machine; Asynchronous machine; Voltage sag; Voltage interruption; Ride-through; Process disturbances; Simulation; Modelling;

    Sammanfattning : During the last decade, power quality has been recognised asa global problem. Among different types of power qualityproblems, voltage sags have been identified to be one of themost severe problems for different process industries. The mostcommon reason to voltage sags is lightning strikes in powerlines. LÄS MER

  7. 10. Modeling and Simulation of Dial-a-Ride and Integrated Public Transport Services

    Författare :Carl Henrik Häll; Jan T. Lundgren; Stefan Voss; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; dial-a-ride; simulation; optimization; modeling; paratransit; public transport; Other technology; Övriga teknikvetenskaper;

    Sammanfattning : Traditional public transport systems are most often insufficient to provide a good transport service to everyone. Especially, it is not always possible for elderly and disabled persons to use the regular system consisting of timetabled services operating along fixed routes. LÄS MER