Sökning: "Floating reference frame"

Hittade 3 avhandlingar innehållade orden Floating reference frame.

  1. 1. Wind Turbine Drive Train System Dynamics ; Multibody Dynamic Modelling and Global Sensitivity Analysis

    Författare :Saeed Asadi; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Global sensitivity analysis; Model validation; Multibody dynamics system mod-elling; Gearbox modelling; Kinematic constraints; Bearing defects detection; Wind turbine drive train dynamics; Floating reference frame;

    Sammanfattning : To facilitate the design and production of highly efficient and reliable wind turbine drive trains, this thesis deals with the mathematical modelling and analysis of drive train system dynamics. The drive train is considered as the subsystem of the wind turbine that transfers mechanical power from the rotor hub to the generator, and thereby plays an important role in the system dynamics and the efficiency of wind turbine operation. LÄS MER

  3. 2. Contributions to the Modeling and Simulation of Mechanical Systems with Detailed Contact Analyses

    Författare :Iakov Nakhimovski; Dag Fritzson; Peter Fritzson; Claus Führer; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; multibody dynamics simulation; contacts; flexibility; elastic; floating reference frame; hybrid parallel; co-simulation; TLM; Computer science; Datavetenskap;

    Sammanfattning : The motivation for this thesis was the need for further development of multibody dynamics simulation packages focused on detailed contact analysis. The thesis makes contributions in three different areas:Part I summarizes the equations, algorithms and design decisions necessary for dynamics simulation of flexible bodies with moving contacts. LÄS MER

  4. 3. Bekänna färg : Modernitet, maskulinitet, professionalitet

    Författare :Eva Silvén; Birgitta Svensson; Lars-Eric Jönsson; Stockholms universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; Modernity; masculinity sex gender; professionalism; paint painters; materiality; the body; aesthetics; social field; discourse analysis; fieldwork; Ethnology; Etnologi;

    Sammanfattning : Paint and painting are obvious components of everyday life for those of us who live in contemporary Sweden. In terms of both matter and shade, paint has come to symbolise taste and status as well as having created distinction, defined sex/gender and social position – with the past as a constant sounding board. LÄS MER