Sökning: "HOPSAN"

Visar resultat 1 - 5 av 19 uppsatser innehållade ordet HOPSAN.

  1. 1. Electrification of rock drills : An initial study of an electromagnetic percussion concept

    Master-uppsats, Linköpings universitet/Fluida och mekatroniska system

    Författare :Jakob Smith Siljestrand; Sai Shridhar Chebolu; [2023]
    Nyckelord :Epiroc; electrification; Hopsan; TLPM; linear motor; rock drill; percussion; electromagnetic; simulation; electric motor; mining; electromagnetism;

    Sammanfattning : The world is looking for greener solutions and so is the mining industry. This quest has led to the question whether it is possible to have a completely electric rock drill. This work carries out an initial exploration of completely electrified percussion. LÄS MER

  3. 2. Co-Simulation Development for Improved Cavitation Predictions in Oil-Hydraulics Systems : An investigation into the cavitating flow behavior of repetitive water hammers.

    Master-uppsats, Linköpings universitet/Mekanisk värmeteori och strömningslära

    Författare :Thisal Mandula Sugathapala; Twan Bakker; Rahul Gudur Suresh; Aryan Delir; [2022]
    Nyckelord :co-simulation; water hammer; cavitation;

    Sammanfattning : Numerical modeling of cavitation using computational software is a highly pursued topic of research due to its impact in different industrial sectors. While some industrial applications such as wastewater treatment and mineral processing are known to advantageously use this phenomena, it remains an unwanted process in others where it is known to induce vibration, reduce performance and cause structural damage. LÄS MER

  4. 3. Controlling a Hydraulic System using Reinforcement Learning : Implementation and validation of a DQN-agent on a hydraulic Multi-Chamber cylinder system

    Master-uppsats, Linköpings universitet/Fluida och mekatroniska system

    Författare :David Berglund; Niklas Larsson; [2021]
    Nyckelord :Gear selection; reinforcement learning; machine learning; DQN; neural network; multi chamber cylinder; Digital hydraulics; hydraulics; Matlab; Simulink; Hopsan; hydraulic system validation;

    Sammanfattning : One of the largest energy losses in an excavator is the compensation loss. In a hydraulic load sensing system where one pump supplies multiple actuators, these compensation losses are inevitable. LÄS MER

  5. 4. Evaluation of a digitial displacement pump in a load haul dump application

    Master-uppsats, Linköpings universitet/Fluida och mekatroniska system

    Författare :Jayasurya Madhusudanan; [2019]
    Nyckelord :Digital displacement pump; mine loader; energy efficiency; backward simulation; forward simulation; pump losses;

    Sammanfattning : Hydraulics has always been the first choice of actuation in off-road, construction and mining vehicles due to its power density, low cost, built in cooling and lubrication. However, the current state of our environment along with stricter regulations has brought light to newer technologies within hydraulics to improve the existing system. LÄS MER

  7. 5. Tillskott av hydrauleffekt från traktorns kraftuttagsaxel : Konceptstudie av externa pumpar för såmaskiner

    Master-uppsats, Linköpings universitet/Fluida och mekatroniska system

    Författare :Emil Lindborg; Olof Stridsberg; [2018]
    Nyckelord :Hydraulik; Mekatronik; Såmaskin; Konceptstudie; Konceptutvärdering; Simulering; Modellering; Hopsan;

    Sammanfattning : This is a master thesis from Linköpings University with an emphasis on mobile working hydraulic systems. This thesis was conducted at and in collaboration with Väderstad AB with the premise to make it easier for smaller tractor’s and tractor’s with small hydraulic pumps installed to drive bigger and more advanced planters. LÄS MER