Sökning: "differential algebraic equations"

Visar resultat 1 - 5 av 19 uppsatser innehållade orden differential algebraic equations.

  1. 1. Generating Perturbative Solutions for Slowly Rotating Perfect Fluids Using the Hartle Scheme

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för fysik

    Författare :Elin Johansson; [2023]
    Nyckelord :;

    Sammanfattning : In this thesis, we study slowly rotating relativistic stars by modeling them as perfect fluids. The Hartle formalism is used to perturb a spherically symmetric static solution into slow rotation and the corresponding field equations to second order are presented. LÄS MER

  3. 2. Modelling and Simulation of Complete Wheel Loader in Modelica : Evaluation using Modelon Impact software

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Paolo Teta; [2022]
    Nyckelord :Modelica; Wheel Loader; Mechanics; Object-orientation; Modelling; Simulation; Differential Algebraic Equations; Ordinary Differential Equations; Modelica; Hjullastare; Mekanik; Objektorientering; Modellering; Simulering; Differentialekvationer;

    Sammanfattning : Modelling and simulation of complex and multi-domain mechanical systems has become of major importance in the last few years to address energy and fuel consumption performance evaluation. The goal is to unify the available modelling languages aiming to improve scalability and easiness of handling complex multi-domain models. LÄS MER

  4. 3. Analysis and Algebraic Structures of q-Analysis and its Generalizations

    Master-uppsats, Mälardalens högskola/Akademin för utbildning, kultur och kommunikation

    Författare :Olle Karlsson; [2020]
    Nyckelord :calculus;

    Sammanfattning : In this thesis we explore the concept of q-calculus and its generalisation. We begin by defining q-combinatorics which uses a real number to define a new set of numbers and then use these numbers to get classic combinatoric elements. These results have use when we work on our algebra that are related with this specific real number. LÄS MER

  5. 4. Suturing in Surgical Simulations

    Master-uppsats, KTH/Numerisk analys, NA

    Författare :Kiran Beersing-Vasquez; [2019]
    Nyckelord :Surgical suturing; spline model; Lagrange constraints; multibody dynamics; differential algebraic equations; Kirurgisk suturering; spline-modell; Lagrange-begränsningar; multikroppsdynamik; differentiella algebraiska ekvationer;

    Sammanfattning : The goal of this project is to develop virtual surgical simulation software in order to simulate the suturing and knot tying processes associated with surgical thread. State equations are formulated using Lagrangian mechanics, which is useful for the conservation of energy. LÄS MER

  7. 5. Hybrid Semantics in Equation-Based Modeling

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Oscar Eriksson; [2018]
    Nyckelord :;

    Sammanfattning : Equation-based object-oriented modeling languages represent a highly composable class of modeling languages. In these languages models are expressed as differential-algebraic equations with no explicit causal relation between variables. LÄS MER