Sökning: "plates"

Visar resultat 11 - 15 av 357 avhandlingar innehållade ordet plates.

  1. 11. Dynamics of Plates with Thin Piezoelectric Layers

    Författare :Karl Mauritsson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Thin layers; Actuator; Plate equations; Equivalent boundary conditions; Power series expansions; Piezoelectricity;

    Sammanfattning : The subject of this thesis is dynamics of plates with thin piezoelectric layers. Piezoelectric materials are often used in sensors and actuators and common applications for these are vibration control and ultrasonic transducers. LÄS MER

  3. 12. Deformations and stresses in butt-welding of plates : numerical simulation and experimental verification

    Författare :Lars-Erik Lindgren; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Material Mechanics; Materialmekanik;

    Sammanfattning : Deformation and stresses in butt-welding of plates were studied. The work includes numerical simulation and experimental verification. The simulations were performed by use of the finite element method. Temperature dependence of material properties and phase transformations were considered. LÄS MER

  4. 13. Ultrasound Communication through Thin Plates: Understanding the Channel

    Författare :Asra Ashraf; Jaap van de Beek; Johan E. Carlson; Magnus Sandell; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Signalbehandling; Signal Processing;

    Sammanfattning : Ultrasound, composed of sound waves with frequencies above the human audible range, has become widely used in various technological fields for digital communications. In the past, acoustic and ultrasonic waves were employed in military and commercial un-derwater wireless communication systems due to their superior performance compared to electromagnetic waves. LÄS MER

  5. 14. Structure and properties of thick plates of 7010

    Författare :Nils-Eric Andersson; Jönköping University; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Aluminium; Texture; EBSP; Potential drop; Recrystallisation; Yield strength; Fatigue; Construction materials; Konstruktionsmaterial;

    Sammanfattning : .... LÄS MER

  7. 15. Adaptive modelling of plates in bending and shear

    Författare :Ulrika Wendt; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : .... LÄS MER