Sökning: "NATURVETENSKAP Fysik Kondenserade materiens fysik Struktur- och vibrationsfysik"

Hittade 2 avhandlingar innehållade orden NATURVETENSKAP Fysik Kondenserade materiens fysik Struktur- och vibrationsfysik.

1. 1. Wheelset Structural Flexibility and Track Flexibility in Vehicle-Track Dynamic Interaction

   Författare :Nizar Chaar; Stefano Bruni; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Vehicle-track dynamic interaction; wheelset structural flexibility; Structural and vibration physics; Struktur- och vibrationsfysik;

   Sammanfattning : This thesis investigates the influence of wheelset structural flexibility and track flexibility on the vehicle-track dynamic interaction, mainly in terms of wheel-rail forces up to 200 Hz, using simulations and measurements. The previous knowledge in this field is first reviewed and summarized, then two case studies are selected for investigation. LÄS MER

3. 2. In-plane Compressive Response of Sandwich Panels

   Författare :Anders Lindström; Dan Zenkert; Stefan Hallström; Leif Carlsson; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Sandwich; Finite Element Analysis FEA ; Fracture; In-plane compression; Other engineering mechanics; Övrig teknisk mekanik; Structural and vibration physics; Struktur- och vibrationsfysik;

   Sammanfattning : The high specific bending stiffness of sandwich structures can with advantage be used in vehicles to reduce their weight and thereby potentially also their fuel consumption. However, the structure must not only meet the in-service requirements but also provide sufficient protection of the vehicle passengers in a crash situation. LÄS MER