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Found 3 essays matching the above criteria.

  1. 1. Slew control methods for tower cranes

    University essay from KTH/Maskinkonstruktion (Inst.)

    Author : Wim Devesse; [2012]
    Keywords : ;

    Abstract : Today, tower cranes are in widespread use on construction sites all around the world. An important issue that arises when operating these cranes is the oscillatory behavior that occurs during payload transportation, which can have severe effects on safety as well as accuracy of payload delivery. READ MORE

  2. 2. Offshore Wind Turbine Transportation & Installation Analyses Planning Optimal Marine Operations for Offshore Wind Projects

    University essay from Institutionen för kultur, energi och miljö

    Author : Emre Uraz; [2011]
    Keywords : Offshore wind farms; transportation and installations; jack-up vessels; wind turbine installation vessels; design trends in installation vessels; assembly and pre-assembly; project durations; onboard cranes; challenges due to offshore environment; time performance; crane operations;

    Abstract : Transportation and installation of offshore wind turbines (Tower, Nacelle and Rotor) is a complete process conducted over several phases, usually in sequence. There are several factors that can turn this process into a challenge. These factors can either be due to offshore site conditions or the technical limitations of the installation vessels. READ MORE

  3. 3. Modeling and Event-Triggered Control ofMultiple 3D Tower Cranes over WSNs

    University essay from KTH/Reglerteknik

    Author : Faisal Altaf; [2010]
    Keywords : ;

    Abstract : Wireless control of 3D tower cranes is a topic of great industrial significance as it offers greater flexibility and lower maintenance cost. But the reduction in shared network resource utilization and the desired level of control performance against packet losses and delays are main concerns. READ MORE