Avancerad sökning

Visar resultat 1 - 5 av 18 uppsatser som matchar ovanstående sökkriterier.

  1. 1. Optimering av timmerplanslogistik : Minimering av transportavstånd för den nya timmerplanen på Sävar såg

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för matematik och matematisk statistik

    Författare :Linnea Asp; Elvira Carstedt; [2022]
    Nyckelord :sawmill; timber logistics; optimization; assignment problem; transportation distance; log yard layout; sågverk; timmerlogistik; optimering; tillordningsproblemet; transportavstånd; timmerplansdesign;

    Sammanfattning : An increase in demand for sawed wood products is the reason why Norra Timber has to expand their facility at Sävar Sawmill. During the expansion, a new log sorting will be implemented which can sort timber with different characteristics and qualities compared to the current log sorting. LÄS MER

  3. 2. Sensorless Control of Synchronous Machines in Python Using Signal Injection : An implementation of a High-Frequency Square-Wave Injection Algorithm on a Linear and Non-Linear Synchronous Machine Model in open-source Software Motulator

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

    Författare :Simon Lundberg; [2022]
    Nyckelord :High-frequency signal injection; Permanent Magnet Synchronous Motor; sensorless speed control; Synchronous Reluctance Machine; square-Wave injection; Fyrkantsvågsinjektering; högfrekvent signalinjektering; Permanentmagnetsmotor; sensorlös hastighetskontroll; synkron reluktansmotor;

    Sammanfattning : The importance of accurately controlling the speed and torque of Synchronous Machines (SMs) in industry, transportation, aerospace, to name a few, can not be overstated. The driving unit to control the machines are called Variable Speed Drives (VSDs) and they can be designed in many different ways. LÄS MER

  4. 3. Heuristic control of a small line-following robot : A comparison of different methods

    Magister-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Neo Gumbel; Omed Khirzia; [2022]
    Nyckelord :PID; Ziegler-Nichols; Tyreus-Luyben; Heuristic; Line-follower; PID; Ziegler-Nichols; Tyreus-Luyben; Heuristik; Linjeföljare;

    Sammanfattning : A line-follower is a robot that follows a line. Line-followers can be used in industry, mostly for material transportation, but are also raced against each other in competitions. While line-followers used in industry prioritize smooth motion and accuracy, competition-style line-followers prioritize speed around the track. LÄS MER

  5. 4. How to make the most of open data? A travel demand and supply model for regional bicycle paths

    Master-uppsats, KTH/Transport och systemanalys

    Författare :Laurent Cazor; [2021]
    Nyckelord :Planning Support System PSS ; Four-Step Model; Gravity Model; Distance-Decay function; Binary Logit Model; Level of Traffic Stress LTS ; Geographic Information System GIS ;

    Sammanfattning : Detta examensarbete syftar till att svara på ett av Trafikverket fastställt problem: en gemensam regional cykelplanerings process skulle göra dem billigare och mer jämförbara. De erbjuder för närvarande planerarna en modell som utvecklades av Kågeson 2007. LÄS MER

  7. 5. Deflection measurements with 3D close range photogrammetry

    Master-uppsats, KTH/Fordonsdynamik

    Författare :Guillaume Defromont; [2021]
    Nyckelord :Photogrammetry; Computer Science; Optimization; Aero-elasticity; Fotogrammetry; Datvetenskap; Aeroelasticitet;

    Sammanfattning : Photogrammetry is a great technology to check and track deformations on anysurface. This information is critical in many tranportation industries such as aeronautics and the automotive industry. In this thesis report photogrammetry measurements were done using 2 Aicon cameras providing 3D targets coordinates. LÄS MER