Advanced search

Showing result 1 - 5 of 8 essays matching the above criteria.

  1. 1. Alternative traction system for road-rail vehicles

    University essay from Lunds universitet/Innovation

    Author : Jakob Runevad; [2023]
    Keywords : Product development; electric traction; construction equipment; road-rail vehicles.; Technology and Engineering;

    Abstract : Excavators have traditionally been diesel driven with hydraulic actuators, but with the ongoing electrification of vehicles, smaller electric excavators are getting more common. Larger electrical excavators are still in a prototyping or early production stage but can be expected to grow. READ MORE

  3. 2. Electrification Of A Tiltrotator : Electrifying The Hydraulic Tilt Function

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Viggo Jonason; [2023]
    Keywords : Electrification; Hydraulic systems; Efficiency; Electromechanical Actuators; Tiltrotator.; Elektrifiering; Hydrauliska system; Verkningsgrad; Elektromekaniska aktuatorer; Tiltrotator.;

    Abstract : As new emission regulations in the EU set more stringent requirements on greenhouse gas (GHG) emissions, original equipment manufacturers (OEM) must find ways to align with the EUs sustainability goals. By transitioning to more electrically driven machinery, operators of off-highway vehicles can benefit from better fuel economy, lower greenhouse gas emissions and less air pollution. READ MORE

  4. 3. NVH analysis and optimization of electric powertrain

    University essay from KTH/Maskinkonstruktion (Inst.)

    Author : Anujit Dafle; [2022]
    Keywords : Electric powertrain; Gear whine; Noise Vibration Harshness NVH ; Elektrisk drivlina; kuggvin; buller och vibrationer;

    Abstract : With increasing focus on electromobility many companies are developing vehicles powered by an electric energy source. Previously, engines used to be the most prominent source of noise in a traditional Internal Combustion Engine (ICE) vehicle. READ MORE

  5. 4. A bonded discrete element approach to simulate loading with hydraulic mining excavators

    University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Author : Carl Andersson; [2021]
    Keywords : DEM; bonded DE; granular material; hydraulic excavator; wear; Archard s wear law; LS-DYNA; simulation;

    Abstract : When operating hydraulic mining excavators the loading equipment is exposed to harsh conditions which lead to extensive wear of the equipment, especially the bucket and bucket teeth. Simulations are used to better understand the wear development and to evaluate new methods to operate excavators more efficiently. READ MORE

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

    University essay from Linköpings universitet/Fluida och mekatroniska system

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

    Abstract : 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. READ MORE