Sökning: "rigid body motion"

Visar resultat 21 - 25 av 45 avhandlingar innehållade orden rigid body motion.

  1. 21. Speckle interferometry and correlation applied to large-displacement fields

    Författare :Angelica Svanbro; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Experimental Mechanics; Experimentell mekanik;

    Sammanfattning : A common problem in experimental mechanics is that when a sample is studied in e.g. a tensile test machine, the sample is often exposed to rigid body motions at the same time as small deformations occur. These two movements, the rigid body motion and the deformation, are often talked about as displacement fields. LÄS MER

  3. 22. Almost-axial impact on elastic and viscoelastic cantilever columns

    Författare :Lixing Ren; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hållfasthetslära; Solid Mechanics;

    Sammanfattning : Almost-axial impact between a rigid body and a cantilever column is studied. A preliminary study of the contact process is presented for a flat-ended impacting body and a flat-ended elastic Timoshenko column with rectangular cross-section. The equations of motion pertaining to the column are solved using an explicit finite difference method. LÄS MER

  4. 23. Dynamics and Thermodynamics of Translational and Rotational Diffusion Processes Driven out of Equilibrium

    Författare :Raffaele Marino; Erik Aurell; Lacoste David; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Translational and Rotational Diffusion Processes; Brownian; Fysik; Physics;

    Sammanfattning : Diffusion processes play an important role in describing systems in many fields of science, as in physics, biology, finance and social science. One of the most famous examples of the diffusion process is the Brownian motion. LÄS MER

  5. 24. Nature-inspired passive flow control using various coatings and appendages

    Författare :Ugis Lacis; Shervin Bagheri; Christophe Eloy; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; flow control; passive appendage; surface coating; pressure drag; friction drag; Flödeskontroll; passiva bihang; ytbeläggning; tryckmotstånd; friktionsmotstånd;

    Sammanfattning : There is a wide variety of tails, fins, scales, riblets and surface coatings, which are used by motile animals in nature. Since organisms currently living on earth have gone through millions of years of evolution, one can expect that their design is optimal for their tasks, including locomotion. LÄS MER

  7. 25. Numerical modeling of air-fiber flows

    Författare :Jelena Andric; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; aggregation; particle-level simulation; rheology; fiber; dry-forming; fiber suspension;

    Sammanfattning : The dynamics of fiber suspensions are of great importance in applications such as the dry-forming process of pulp mats for use in hygiene products. In this forming process, fibers are transported in flowing air. The fibers interact with the fluid, and may interact with each other and interlock in flocs. LÄS MER