Sökning: "head restraint"

Visar resultat 6 - 10 av 16 avhandlingar innehållade orden head restraint.

  1. 6. Initial Studies of Dynamic Responses of Female and Male Volunteers in Rear Impact Tests

    Författare :Anna K Carlsson; Chalmers University of Technology; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ENGINEERING AND TECHNOLOGY; dynamic response; rear impact; response corridors; volunteers; crash test; neck injury; whiplash; females;

    Sammanfattning : Whiplash Associated Disorder (WAD) - commonly denoted whiplash injury - resulting from vehicle impacts, is a worldwide epidemic. These injuries occur at relatively low changes of velocity (typically between 10-25 km/h) and in impacts from all directions. Rear impacts are however the most common in the accident statistics. LÄS MER

  2. 7. Child Passenger Kinematics in Emergency Manoeuvres

    Författare :Isabelle Stockman; Chalmers University of Technology; []
    Nyckelord :;

    Sammanfattning : ABSTRACTIn motor vehicle impacts, a child’s head is generally the most frequently injured body region, irrespective of impact direction. Head to front seat back impact has been identified as a predominant cause of injury for rear seated, seat belt restrained children, aged 3 – 13, who sustained AIS2+ head injuries in frontal impacts. LÄS MER

  3. 8. Child Safety in Car Crashes

    Författare :Marianne Andersson; Chalmers University of Technology; []
    Nyckelord :reconstructions; near-side; evaluations; frontal impact; rigid body; mathematical simulations; rear seat; finite elements; belt positioning booster; side impact; child safety; child seat;

    Sammanfattning : Traffic related trauma is the most common cause of fatality and severe injury to children in developed countries. The majority of these fatalities and injuries are caused by frontal and side impacts. LÄS MER

  4. 9. Postural and Muscular Responses of Car Occupants under Pre-Crash Conditions

    Författare :Ghazaleh Ghaffari; Chalmers University of Technology; []
    Nyckelord :principal component analysis; linear mixed model; pre‐pretensioner belt; vehicle occupant kinematics; pre-crash; evasive maneuvers; human body model; EMG; lane change;

    Sammanfattning : Advanced integrated safety technologies in modern cars such as collision avoidance intervention and pre-crash activated restraint systems require comprehensive research on how vehicle occupants respond to these systems. The aim of this thesis is to provide insights into car passengers’ body kinematics and muscle activations in representative pre-crash circumstances with respect to two belt configurations (i. LÄS MER

  5. 10. Stiffness of reverse channel connections at room and elevated temperatures

    Författare :Tim Heistermann; Luleå tekniska universitet; []

    Sammanfattning : A frame structure exposed to fire undergoes two types of changes due to the resulting temperature fields. The first is the thermal expansion of the structural members and the second is the degradation of the material strength and stiffness as temperature rises. LÄS MER