Sökning: "working machines"

Visar resultat 1 - 5 av 76 avhandlingar innehållade orden working machines.

  1. 1. Quantifying Operability of Working Machines

    Författare :Reno Filla; Jan-Ove Palmberg; Kjell Ohlsson; Jonas Larsson; Linköpings universitet; []
    Nyckelord :Operability; machine harmony; operator workload; control effort; simulation; operator model; human operator; working machines; construction equipment; wheel loaders; TECHNOLOGY; TEKNIKVETENSKAP;

    Sammanfattning : In working machines the human operator is essential for the performance of the total system. Productivity and energy efficiency are both dependent not only on inherent machine properties and working place conditions, but also on how the operator manoeuvres the machine. LÄS MER

  3. 2. Semi-Automating Forestry Machines : Motion Planning, System Integration, and Human-Machine Interaction

    Författare :Simon Westerberg; Anton S. Shiriaev; Klas Nilsson; Umeå universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Forestry Robotics; Forest Machine Automation; Trajectory Planning; Hydraulic Manipulators; Teleoperation; Virtual Environments; Interaction Methods; Head Tracking;

    Sammanfattning : The process of forest harvesting is highly mechanized in most industrialized countries, with felling and processing of trees performed by technologically advanced forestry machines. However, the maneuvering of the vehicles through the forest as well as the control of the on-board hydraulic boom crane is currently performed through continuous manual operation. LÄS MER

  4. 3. Mobile Working Hydraulic System Dynamics

    Författare :Mikael Axin; Petter Krus; Marcus Geimer; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : This thesis deals with innovative working hydraulic systems for mobile machines. Flow control systems are studied as an alternative to load sensing. The fundamental difference is that the pump is controlled based on the operator’s command signals rather than feedback signals from the loads. LÄS MER

  5. 4. Suspended forestry machines for sustainable forestry

    Författare :Abbos Ismoilov; Ulf Sellgren; Kjell Andersson; Viktor Berbyuk; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Machine Design; Maskinkonstruktion;

    Sammanfattning : Cut-to-length (CTL) logging is a mechanized two-machine solution. The harvester processes treestems into smaller logs and a forwarder transports the logs from the logging site to a landing areaaccessible by trucks. LÄS MER

  7. 5. Doing Things in Relation to Machines : Studies on Online Interactivity

    Författare :Anders Olof Larsson; Pär Ågerfalk; Stefan Hrastinski; Else Nygren; Mark Aakhus; Uppsala universitet; []
    Nyckelord :;

    Sammanfattning : The Internet is often discussed in conjunction with various notions of interactivity. Recently, conceptualizations of a “Web 2.0″, mainly focusing on harnessing user-generated content, have grown increasingly common in both public discourse and among researchers interested in the continued growth and transformation of the Internet. LÄS MER