Search for dissertations about: "drive train"

Showing result 21 - 25 of 44 swedish dissertations containing the words drive train.

  2. 21. Multi-Functional Composite Design Concepts for Rail Vehicle Car Bodies

    Author : David Wennberg; Sebastian Stichel; Per Wennhage; Thilo Bein; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Car body; Composite; Finite element; Lightweight; Multi-discipline; Multi-functional; Optimisation; Rail Vehicles; Sandwich Panels;

    Abstract : Structures and material combinations, tailored for multiple purposes, are within the reach of vehicle manufacturers. Besides reducing the environmental impact of the transportation sector these multi-functional structures can reduce costs, such as development, manufacturing and maintenance, and at the same time offer improved comfort to the passengers. READ MORE

  4. 22. Modeling and Linear Quadratic Optimal Control of Wind Turbines

    Author : Thommy Ekelund; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; periodic system; structural dynamics; yaw control; variable speed; wind turbines; active stall; estimation; LQG; identification;

    Abstract : Control can improve the performance of wind turbines by enhancing the energy capture and reducing dynamic, as well as static, loads. There are several possible configurations of the control system, depending on the available actuators. READ MORE

  5. 23. Modeling of Wind Turbines for Power System Studies

    Author : Tomas Petru; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; flicker; fault response; power quality; wind turbine; power system stability; measurements; prediction; verification; grid simulation; modeling;

    Abstract : The power quality impact of wind turbines on the electric grid and the response of the wind turbines to faults in the electric grid are investigated in this thesis. A detailed model of a stall-regulated, fixed-speed wind turbine system capable of predicting the flicker impact on the connected grid is presented and compared with field measurements. READ MORE

  6. 24. Modulation of cellular mechanisms in a spinal locomotor network

    Author : Jesper Tegnér; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Neuronal Network; Calcium Channels; Calcium-DependentPotassium Channels; Neuronal Oscillator; Neuromodulation; GABAg receptors; Lamprey; Locomotion; Spinal Cord; Computer Simulation;

    Abstract : Neuronal networks generate behaviour. Thus, to understand behaviour requires information on how neuronal networks work in terms of their cellular components. The overall aim of this work has been to link processes occurring at an ionic level to the operation of a neural network specialized for undulatory locomotion. READ MORE

  7. 25. High Performance Cooling Traction Brushless Machine Design for Mass Production

    Author : Alessandro Acquaviva; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; permanentmagnet synchronous machine PMSM ; energy efficiency; Cooling; electrical machine design;

    Abstract : In the last few years electric vehicles (EVs) are coming on the market. The shift from niche market to main stream is challenging. It took many years to reach the current internal combustion engine quality in the manufacturing process. READ MORE