Search for dissertations about: "interfacial breakdown"

Found 3 swedish dissertations containing the words interfacial breakdown.

  1. 1. Some Aspects of Wear and Structural Dynamics

    University dissertation from Division of Solid Mechanics Lund University, Box 118, SE-221 00 Lund, Sweden

    Author : Jakob Knudsen; Lunds universitet.; Lund University.; [2005]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; vibration and acoustic engineering; Mechanical engineering; hydraulics; chaos; interfacial breakdown; stability; Maskinteknik; hydraulik; vakuumteknik; vibrationer; akustik; vacuum technology; fretting wear; fretting map; vibro-impact dynamics;

    Abstract : The topic of this thesis is dynamics and wear of structures. In the six appended papers different aspects of wear and dynamics of a model system are studied. The considered system consists of a long slender rod with unilateral supports, subject to harmonic and stochastic excitation. READ MORE

  2. 2. Charge Accumulation in Hybrid High Voltage Insulation

    University dissertation from Chalmers University of Technology

    Author : Mats Sjöberg; Chalmers tekniska högskola.; Chalmers University of Technology.; [2003]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Elektroteknik; elektronik och fotonik; Electrical engineering; electronics and photonics; high voltage; hybrid insulation; charge conditioning; charge accumulation; dielectric coating; dielectric barrier; electric field distribution; breakdown strength; dielectric barrier discharge; discharge modelling;

    Abstract : This thesis deals with the novel idea of controlling the electric stress or field distribution in a hybrid air - solid-dielectric high voltage insulation by promoting accumulation of surface charges on the internal interfacial layers in the combined (hybrid) dielectric structure. Primarily, applications are expected to be found in high voltage dc systems and as a method to improve the resistance against insulation failure by overvoltages, e. READ MORE

  3. 3. The Role of Microstructure in the Atmospheric Corrosion of Selected Light Alloys and Composites

    University dissertation from Chalmers University of Technology

    Author : Mohsen Esmaily; Chalmers tekniska högskola.; Chalmers University of Technology.; [2016]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mg-Al alloys; Mg alloys-based MMCs; Al alloy 6xxx; atmospheric corrosion; galvanic corrosion; Al content; microstructure; intermetallic particles; casting; FSW P; BFSW.;

    Abstract : Magnesium-aluminum (Mg-Al) alloys, Mg-based metal matrix composites (MMCs) and Al alloys are among the best material candidates for future lightweight solutions. However, the use of these materials is limited by a number of issues, including the ability to resist corrosion. READ MORE