Sökning: "Harmonic analysis"

Visar resultat 16 - 20 av 109 uppsatser innehållade orden Harmonic analysis.

  1. 16. Torque Ripple Analysis and Compensation of Servo Drives for Robot Application

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Industriell elektroteknik och automation

    Författare :August Millqvist; [2021]
    Nyckelord :Technology and Engineering;

    Sammanfattning : Permanent magnet synchronous motors or PMSMs are commonly used in multiple applications, both in industry and commercial use. These motors have many pros when compared to other electrical machines but do present the issue of torque ripple, especially cogging torque. LÄS MER

  3. 17. Modelling of air-gap harmonic torques and its impact on vibrations in electric drivetrains : Modelling interaction between electromagnetics and vibration of an electrical machine

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

    Författare :Dhiyanesh Radhakrishnan; [2021]
    Nyckelord :Electro-Magnetics; Eigenfrequency; Electrical Machine; Multi-Body Dynamics; Displacement; machine vibrations; Elektromagnetik; Eigen frekvens; Elektrisk maskin; Flerkropps dynamik; Förskjutning; maskin vibrationer;

    Sammanfattning : In this report, the effect of external torque injection of a particular phase and frequency was analyzed using an induction motor assembly consisting of a prototype of an induction motor and a flexible mounting arrangement. The eigenfrequencies of the several components that make up the construction of the induction machine assembly are found out both by analytical and FEM methods. LÄS MER

  4. 18. Applying Model Selection on Ligand-Target Binding Kinetic Analysis

    Master-uppsats, KTH/Proteinvetenskap

    Författare :Klara Djurberg; [2021]
    Nyckelord :LigandTracer; kinetic models; Rituximab; Bayesian inference; Bayesian model selection; LigandTracer; interaktionsmodeller; Rituximab; Bayesiansk inferens; modellval;

    Sammanfattning : The time-course of interaction formation or breaking can be studied using LigandTracer, and the data obtained from an experiment can be analyzed using a model of ligand-target binding kinetics. There are different kinetic models, and the choice of model is currently motivated by knowledge about the interaction, which is problematic when the knowledge about the interaction is unsatisfactory. LÄS MER

  5. 19. A Mathematical Analysis of the Harmonic Oscillator in Quantum Mechanics

    Kandidat-uppsats, Linnéuniversitetet/Institutionen för matematik (MA)

    Författare :Philip Solarz; [2021]
    Nyckelord :Functional Analysis; Quantum Mechanics; Harmonic Oscillator; Schrödinger Equation; Hamiltonian Operator; Hermite Functions; Hilbert Space; Schatten-von Neumann Operator; Mehler s Formula;

    Sammanfattning : In this paper we derive the eigenfunctions to the Hamiltonian operator associated with the Harmonic Oscillator, and show that they are given by the Hermite functions. Then we prove that the Hermite functions form an orthonormal basis in the underlying Hilbert space. LÄS MER

  7. 20. Chromatic Function Analysis- An instrument for improvisation

    Master-uppsats, Göteborgs universitet/Högskolan för scen och musik

    Författare :Joel Bergström; [2020-06-12]
    Nyckelord :Organ; Improvisation; Chromatic Function Analysis; Function Analysis; An instrument for function analysis; improvisation and composition; Girolamo Frescobaldi; Franz Tunder; Dieterich Buxtehude; Johann Sebastian Bach; Max Reger; Philippe Lefebvre; Olivier Messiaen; Bergström’s Chromatic Function Analysis Circle; Dr. Pamela Ruiter-Feenstra; Dr. Karin Nelson; Dr Hans Davidsson; Dr. Joel Speerstra; Dr. Joel Eriksson; Senior lecture Mikael Wahlin; Dr. Tilman Skowroneck; Dr Jörgen Jersild; Dr. Ernst Levy; Dr. Valdemar Söderholm; Dr. Sten Ingelf; Baroque improvisation; Romantic improvisation; French romantic improvisation; Joel Bergström; Patterns; Harmony; Chords; Triads; Music; Theory; Music theory; Statistics; Improvisation pedagogy; Improvisation model; Dr. Ikujiro Nonaka; Dr. Hirotaka Takeuchi; Academy of Music and Drama; University of Gothenburg; Högskolan för Scen och Musik; HSM; Sweden;

    Sammanfattning : The purpose of this investigation is to become a better improviser at the organ. I will use, The Chromatic Function Analysis Model, abbreviated as TCFAM, as a method to deconstruct material and later reconstruct material, on which I will make improvisations. LÄS MER