Avancerad sökning

Visar resultat 1 - 5 av 222 uppsatser som matchar ovanstående sökkriterier.

  1. 1. Buildings in the Digital Era : An Explorative Study of Digital Twins in the Built Environment

    Master-uppsats, KTH/Industriell ekonomi och organisation (Inst.)

    Författare :Siw Kristine Kästel; Joanna Wallén; [2024]
    Nyckelord :Digital Twin DT ; Arcitecture; Engineering and Construction AEC industry; Digitization; Building Information Modeling BIM ; Facility Management FM ; Operation Management O M ; Digital Tvilling; Fastighetsbranschen; Fastighetsförvaltning; Byggnadsinformationsmodeller BIM ;

    Sammanfattning : In recent years, digital twins (DT) have gained traction in enhancing operation and maintenance procedures across various industrial sectors, such as manufacturing, energy, and aerospace. Yet their utilization remains more limited in the built environment. LÄS MER

  2. 2. When Flying is Inevitable : How international companies and business travelers can contribute to the transformation towards a future of sustainable aviation

    Master-uppsats, KTH/Industriell ekonomi och organisation (Inst.)

    Författare :Frida Sjöström; [2024]
    Nyckelord :Carbon Neutral; Business aviation; Sustainable Aviation; Sustainable Strategy; Sustainable Aviation Fuel; Hydrogen; Electric; Switzerland; Technology-Push; DemandPull.; Koldioxidneutralt; affärsflyg; hållbart flyg; hållbar strategi; hållbart flygbränsle; vätgas; elflyg; Schweiz; Technology-Push; Demand-Pull;

    Sammanfattning : This thesis emerged from a question that had been repeating itself in my head for a long period of time: If myself and the rest of the world face the fact that we are likely to keep flying for years to come for reasons somehow considered valid, how can we at the same time still contribute efficiently to achieving a more sustainable future of aviation? Based on this dilemma and focusing on the factor of impact, an actor with the power of creating a larger impact than a single individual was firstly identified. This actor also provides the perspective used in this thesis. LÄS MER

  3. 3. Optimering av flyghastighet för flygplan

    Master-uppsats, KTH/Lättkonstruktioner, marina system, flyg- och rymdteknik, rörelsemekanik

    Författare :Louise Larsson; [2023]
    Nyckelord :Aircraft flight speed; flight operations; speed optimization; Cost Index; ECON speed; Flyghastighet; flygverksamhet; hastighetsoptimering; kostindex; ekonomisk hastighet;

    Sammanfattning : Optimization of flight operations is a way to reduce the impact of aviation on the environment and make the use of airspace more effective. Reductions in fuel consumption and flight time are further desired by airlines to minimize operational costs. LÄS MER

  4. 4. Analysis of a shape morphing structural battery: manufacturing, analytical modeling and numerical simulation

    Master-uppsats, KTH/Lättkonstruktioner, marina system, flyg- och rymdteknik, rörelsemekanik

    Författare :Alfredo Bici; [2023]
    Nyckelord :;

    Sammanfattning : A reduction in the global use of fossil fuels is necessary when striving for a more sustainable future. One key strategy in the transition from fossil fuels is electrification. This strategy is particularly prominent within the transport sector, where more efficient ways to store electric energy are being pursued. LÄS MER

  5. 5. Pulse-width voltage modulation in the Python-based open-source simulator Motulator : A Realization of SVPWM, Harmonic analyzer and Over-modulation on Two and Three-level Inverters, and a Solution for Unbalanced Neutral Point Voltage on Three-level Inverters

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

    Författare :Jiale Deng; [2023]
    Nyckelord :Three-level inverters; over-modulation techniques; space vector modulation; neutral-point voltage balancing; non-uniform Fourier transform; Trenivåväxelriktare; övermodulation; spacevektormodulering; balansering av nollpunktsspänning; olikformig Fouriertransform;

    Sammanfattning : Controlling the dynamic outputs of electrical machines has always been an essential topic in aerospace, automotive and other industries. Electrical machine control consists of several components, each of which can be controlled in various ways. Whereas the dynamic responses are mostly simulated using MATLAB/SIMULINK, Prof. LÄS MER