Sökning: "Teknisk mekanik"

Visar resultat 1 - 5 av 929 avhandlingar innehållade orden Teknisk mekanik.

  1. 1. Constrained Optimization for Prediction of Posture

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Erik J. Dijkstra; KTH.; [2016]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Static optimization; Multibody system; Musculoskeletal model; Teknisk mekanik; Engineering Mechanics;

    Sammanfattning : The ability to stand still in one place is important in a variety of activities of daily living. For persons with motion disorders, orthopaedic treatment, which changes geometric or biomechanical properties, can improve the individual'sposture and walking ability. LÄS MER

  2. 2. Inflation and Instabilities of Hyperelastic Membranes

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Amit Patil; KTH.; [2016]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Membranes; Constrained inflation; Energy release rate; Adhesive contact condition; Limit point; Bifurcation point; Wrinkling; Tension field theory; Pressure induced instability.; Teknisk mekanik; Engineering Mechanics;

    Sammanfattning : The applications of membranes are increasing rapidly in various fields of engineering and science. The geometric, material, force and contact non-linearities complicate their analysis, which increases the demand for computationally efficient methods and interpretation of counter-intuitive behaviours. LÄS MER

  3. 3. Vibration-based Assessment of Tensegrity Structures

    Detta är en avhandling från KTH Royal Institute of Technology

    Författare :Nasseradeen Ashwear; KTH.; [2016]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Tensegrity; Pre-stress; Vibration; Health monitoring; Buckling; Temperature effect; Vibration health monitoring VHM; Optimization; Teknisk mekanik; Engineering Mechanics;

    Sammanfattning : Vibration structural health monitoring (VHM) uses the vibration properties to evaluate many civil structures during the design steps, building steps and service life.The whole function, expressed by stiffness and frequencies of tensegrity structures are primarily related to the level of pre-stress. LÄS MER

  4. 4. Vibration Frequencies as Status Indicators for Tensegrity Structures

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Nasseradeen Ashwear; KTH.; [2014]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Tensegrity; Pre-stress; Vibration; Health monitoring; Buckling; Temperature effect; Vibration health monitoring VHM; Tensegritet; Förspänning; Vibration; Hälsokontroll; Knäckning; Temperatureffekt; Vibrationsbaserad hälsokontroll; Teknisk mekanik; Engineering Mechanics;

    Sammanfattning :  Applications of vibration structural health monitoring (VHM) techniques are increasing rapidly. This is because of the advances in sensors and instrumentation during the last decades. VHM uses the vibration properties to evaluate many civil structures during the design steps, building steps and service life. LÄS MER

  5. 5. Turbulence modeling of compressible flows with large density variation

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Igor Grigoriev; KTH.; [2016]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Turbulence; DRSM; EARSM; active scalar; compressible flow; reacting flow; supercritical flow; Teknisk mekanik; Engineering Mechanics;

    Sammanfattning : In this study we highlight the influence of mean dilatation and mean density gradient on the Reynolds stress modeling of compressible, heat-releasing and supercritical turbulent flows.Firstly, the modeling of the rapid pressure-strain correlation has been extended to self-consistently account for the influence of mean dilatation. LÄS MER