Sökning: "Peter Fritzson"

Visar resultat 1 - 5 av 26 avhandlingar innehållade orden Peter Fritzson.

  1. 1. Automatic Parallelization of Simulation Code from Equation Based Simulation Languages

    Författare :Peter Aronsson; Peter Fritzson; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; state-of-the-art equation; object oriented modeling; automatic parallelization tool; data dependency graph; clustering algorithms; Computer science; Datavetenskap;

    Sammanfattning : Modern state-of-the-art equation based object oriented modeling languages such as Modelica have enabled easy modeling of large and complex physical systems. When such complex models are to be simulated, simulation tools typically perform a number of optimizations on the underlying set of equations in the modeled system, with the goal of gaining better simulation performance by decreasing the equation system size and complexity. LÄS MER

  3. 2. Automatic Parallelization of Equation-Based Simulation Programs

    Författare :Peter Aronsson; Peter Fritzson; Christoph Kessler; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Heavy-duty simulation; Parallel computers; Automatic parallelization; Clustering; Computer science; Datavetenskap;

    Sammanfattning : Modern equation-based object-oriented modeling languages which have emerged during the past decades make it easier to build models of large and complex systems. The increasing size and complexity of modeled systems requires high performance execution of the simulation code derived from such models. LÄS MER

  4. 3. Debugging and Structural Analysis of Declarative Equation-Based Languages

    Författare :Peter Bunus; Peter Fritzson; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; software development; object-oriented; debugging; computer programming; debugging kernel prototypes; Computer science; Datavetenskap;

    Sammanfattning : A significant part of the software development effort is spent on detecting deviations between software implementations and specifications, and subsequently locating the sources of such errors. This thesis illustrates that is possible to identify a significant number of errors during static analysis of declarative object-oriented equation-based modeling languages that are typically used for system modeling and simulation. LÄS MER

  5. 4. 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

  7. 5. Contributions to Modelling and Visualisation of Multibody Systems Simulations with Detailed Contact Analysis

    Författare :Alexander Siemers; Dag Fritzson; Peter Fritzson; Mats G. Larson; Linköpings universitet; []
    Nyckelord :TECHNOLOGY; TEKNIKVETENSKAP;

    Sammanfattning : The steadily increasing performance of modern computer systems is having a large influence on simulation technologies. It enables increasingly detailed simulations of larger and more comprehensive simulation models. Increasingly large amounts of numerical data are produced by these simulations. LÄS MER