Search for dissertations about: "deflections"

Showing result 1 - 5 of 47 swedish dissertations containing the word deflections.

  1. 1. Controlling the dynamic characteristics of machining systems through consciously designed joint interfaces

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Constantinos Frangoudis; KTH.; [2014]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Production; machine tool; machining system control; joint interfaces; JIM; stiffness; damping; vibrations; machining process; milling; turning; deflections; accuracy; dynamic response;

    Abstract : The precision of machining systems is ever increasing in order to keep up with components’ accuracy requirements. At the same time product variants areincreasing and order quantities are decreasing, which introduces high demands on the capability of machining systems. READ MORE

  2. 2. Design for Serviceability - A probabilistic approach

    University dissertation from Lund University

    Author : Daniel Honfi; Lund University.; Lunds universitet.; [2013]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; design codes; long-term deflections; structural reliability; serviceability;

    Abstract : In many design situations the acceptable performance of structures is defined by serviceability requirements. To estimate the probability of serviceability failure three main design aspects should be considered: (1) the relevant exposures, (2) the structural response and (3) the performance criteria. READ MORE

  3. 3. Lateral Stability of High-Speed Trains at Unsteady Crosswind

    University dissertation from Stockholm : KTH Farkost & Flyg

    Author : Dirk Thomas; KTH.; KTH.; [2009]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TECHNOLOGY Engineering mechanics Vehicle engineering; TEKNIKVETENSKAP Teknisk mekanik Farkostteknik;

    Abstract : Crosswind stability of rail vehicles has been a research area for several decades,mainly motivated by vehicle overturning accidents and higher speeds, but in recenttimes also by issues of lower energy consumption and track maintenance costsdemanding lower vehicle weights. During everyday operation, rail vehicles are subjectedto large lateral influences from track irregularities, track curves and crosswind,leading to large suspension deflections and increased crosswind sensitivity. READ MORE

  4. 4. Modeling of Cold Pilgering of Tubes

    University dissertation from Luleå : Luleå university of technology

    Author : Yağız Azizoğlu; Luleå tekniska universitet.; Högskolan Dalarna.; [2017]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Material Mechanics; Materialmekanik; Cold pilgering; finite element method; tube forming; tool elasticity; roll flattening; Steel Forming and Surface Engineering; Stålformning och ytteknik;

    Abstract : Cold pilgering is a challenging tube forming process in terms of modeling due to the complexity in kinematic of tools, friction condition and material behavior. The process development has mostly been based on simple formulas and costly full-scale tryouts. READ MORE

  5. 5. On improving efficiency of flight using optimization

    University dissertation from Stockholm : KTH

    Author : Marianne Jacobsen; KTH.; [2009]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TECHNOLOGY Engineering mechanics Vehicle engineering; TEKNIKVETENSKAP Teknisk mekanik Farkostteknik;

    Abstract : In this thesis, optimization is used to improve the performance of aircraft. The focus is on operating current generation aircraft more efficiently rather than designing new aircraft. Drag minimization and aircraft trajectory optimization is used to increase efficiency. READ MORE