Search for dissertations about: "catenary"

Showing result 1 - 5 of 18 swedish dissertations containing the word catenary.

  1. 1. Pantograph-catenary interaction : aspects on pantograph dynamics and critical catenary sections

    Author : Pia Haréll; KTH; []
    Keywords : ;

    Abstract : .... READ MORE

  2. 2. POSITION MOORING OF WAVE ENERGY CONVERTERS - An engineering study into the mooring of structures in a highly exposed shallow ocean regime, within the context of the economics of renewable energy conversion

    Author : John Fitzgerald; Chalmers University of Technology; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; energy; catenary; articulated tower; ocean; Mooring; wave; anchor; energy;

    Abstract : The principles of systems engineering are applied in order to establish the requirements formooring wave energy conversion devices. These requirements capture both the function ofmaintaining position in energetic wave climates as well as the need to enable an economiclifecycle for the development of a viable wave energy conversion industry. READ MORE

  3. 3. Modelling and simulation of pantograph-catenary dynamics

    Author : Lars Drugge; Luleå tekniska universitet; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Datorstödd maskinkonstruktion; Computer Aided Design;

    Abstract : This thesis considers theoretical and experimental investigations of the dynamic behaviour of pantograph-catenary systems for trains and its relation to simulation driven product development. The pantograph and catenary form an oscillating system that is coupled via the contact force between the pantograph head and the contact wire. READ MORE

  4. 4. Analysis of Catenary Effect in Steel Beams and Trusses Exposed to Fire

    Author : Naveed Iqbal; Luleå tekniska universitet; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Steel Structures; Stålbyggnad;

    Abstract : The goals of structural design are fundamentally different when designing structures at normal temperature or when designing them in a fire situation. While structures are primarily designed for normal temperature situations considering the different design limit states, in the fire design situation, however, the already designed structure is assessed for its resistance in the fire design limit state. READ MORE

  5. 5. Numerical study on multi-pantograph railway operation at high speed

    Author : Zhendong Liu; Sebastian Stichel; Jens Nielsen; KTH; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; numerical study; pantograph-catenary system; multi-pantograph operation; dynamic behaviour; high-speed operation; Järnvägsgruppen - Fordonsteknik; Järnvägsgruppen - Fordonsteknik;

    Abstract : Multi-pantograph operation allows several short electric multiple unit (EMU) trainsets to be coupled or decoupled to adapt to daily or seasonal passenger-flow variation. Although this is a convenient and efficient way to operate rolling stock and use railway infrastructure, pantographs significantly influence each other and even significantly change the dynamic behaviour of the system compared to single-pantograph operation in the same condition. READ MORE