Sökning: "differential-algebraic equations"

Visar resultat 1 - 5 av 12 uppsatser innehållade orden differential-algebraic equations.

  1. 1. 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

  3. 2. 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

  4. 3. 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

  5. 4. A Weak Formulation of Constraints to Couple Rigid and Elastic Bodies - a Study with FEniCS

    Master-uppsats, Lunds universitet/Matematik LTH

    Författare :Axel Södersten; [2018]
    Nyckelord :Flexible multibody dynamics; differential-algebraic equations; interconnecting rigid joints; Mathematics and Statistics; Technology and Engineering;

    Sammanfattning : Many complex mechanical systems are simplified by considering them as multibody systems. In recent years, flexible multibody dynamics has become more and more in demand. LÄS MER

  7. 5. Hybrid Differential Dynamic Programming Algorithm for Low-Thrust Trajectory Design Using Exact High-Order Transition Maps

    Master-uppsats, KTH/Rymdteknik

    Författare :Michele Maestrini; [2018]
    Nyckelord :;

    Sammanfattning : Optimal orbital trajectories are obtained through the solution of highly nonlinear large scale problems. In the case of low-thrust propulsion applications, the spacecraft benefits from high specific impulses and, hence, greater payload mass. LÄS MER