Sökning: "lumped element methods"

Hittade 5 uppsatser innehållade orden lumped element methods.

  1. 1. Methods for including stiffness parameters from reduced finite element models in simulations of multibody systems

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Fasta tillståndets elektronik

    Författare :Christoffer Fjellstedt; [2019]
    Nyckelord :model order reduction; lumped element methods; lumped parameter methods; robotics; robot mechanics; simulations; constrained multibodies; Dymola;

    Sammanfattning : Two methods using lumped element (lumped parameter) methods to model flexible bodies have been presented. The methods are based on the concept of using a Guyan reduced stiffness matrix to describe the elasticity of a body. LÄS MER

  3. 2. Rendering Of Physically Simulated Wires

    Master-uppsats, Umeå universitet/Institutionen för datavetenskap

    Författare :Jimmy Sihlberg; [2018]
    Nyckelord :;

    Sammanfattning : Simulating deformable continious objects such as wires requires some discretization method. In this project we look at how to render simulated multiresolution lumped element wires in real time and the challenges that come with it. First we look how to create a 3D wire geometry on they from a set of constantly changing points. LÄS MER

  4. 3. Automatic lumped element discretization of curved beams with variable sectional area

    Master-uppsats, Umeå universitet/Institutionen för fysik

    Författare :Forsberg Hampus; [2017]
    Nyckelord :Simulation Beams Lumped Element Method;

    Sammanfattning : Calculations on stress, strain and deformation are typically made using finite element methods (FEM). An alternative to this is a rigid bodydynamics approach also called lumped element method (LEM). LÄS MER

  5. 4. Modelling a piezoelectric-driven actuator for active flow control

    Master-uppsats, Linköpings universitet/Reglerteknik; Linköpings universitet/Tekniska högskolan

    Författare :Emma Ring; [2014]
    Nyckelord :Piezoelectric actuator; Lumped Element Modelling; Equivalent circuits; Active Flow Control; Simulink;

    Sammanfattning : Flow control is an area of research of particular interest within automotive and aerospace industries since methods used to affect the fluid flow around vehicles can reduce drag and therefore lower their fuel consumption. One of these methods, which has generated a lot of interest in later years, is called active flow control and uses different types of actuators to impact the surrounding flow. LÄS MER

  7. 5. Thermal modelling of the Synchronous Reluctance Machine

    Uppsats för yrkesexamina på avancerad nivå, KTH/Elektrisk energiomvandling

    Författare :Mohamad Mahmoudi; [2012]
    Nyckelord :;

    Sammanfattning : In this paper two methods for thermally modelling the Synchronous Reluctance Machine (SynRM) have been developed and compared to measured data. The first is an analytical method for estimating the end winding temperature based on Brostr¨oms formula. Curve fitting to the measured data was done by Gauss-Newton estimation. LÄS MER