Search for dissertations about: "material damping"

Showing result 1 - 5 of 68 swedish dissertations containing the words material damping.

  1. 1. On the Experimental Determination of Material Damping in Metals

    Author : Jonas Åberg; KTH; []
    Keywords : material damping; experimental methods; cast metals;

    Abstract : .... READ MORE

  2. 2. Improving Machining System Performance through designed-in Damping : Modelling, Analysis and Design Solutions

    Author : Lorenzo Daghini; Cornel Mihai Nicolescu; Miroslav Píška; KTH; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Machining performance; Cutting stability; Passive damping; High Damping Interface; Boring bar; Turret; SRA - Production; SRA - Produktion;

    Abstract : With advances in material technology, allowing, for instance, engines to withstand higher combustion pressure and consequently improving performance, comes challenges to productivity. These materials are, in fact, more difficult to machine with regards to tool wear and especially machine tool stability. READ MORE

  3. 3. The effects of damping treatment on the sound transmission loss of honeycomb panels

    Author : Sathish Kumar Ramanathan; Leping Feng; Alexander Peiffer; KTH; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Sandwich Structures; Honeycomb Panels; Sound Transmission; Loss Factor; Damping; Sound Radiation; Acoustics; Akustik;

    Abstract : In the industry, all passenger vehicles are treated with damping materials to reduce structure-borne sound. Though these damping materials are effective to attenuate structure-borne sound, they have little or no effect on the air-borne sound transmission. READ MORE

  4. 4. On the Experimental Determination of Damping of Metals and Calculation of Thermal Stresses in Solidifying Shells

    Author : Jonas Åberg; Hasse Fredriksson; Björn Widell; Michael Vynnycky; Toshihiko Emi; KTH; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; material damping; measurement methods; calorimetric methods; optical strain gauge measurements; hot cracking; stress in solid shells; ALE; Materials science; Teknisk materialvetenskap;

    Abstract : This thesis explores experimentally and theoretically two different aspects of the properties and behaviour of metals: their ability to damp noise and their susceptibility to crack when solidifying. The first part concerns intrinsic material damping, and is motivated by increased demands from society for reductions in noise emissions. READ MORE

  5. 5. On experimental material damping estimation based on vibration response models and hybride modal analysis

    Author : Mats Dalenbring; KTH; []
    Keywords : Constitutive isotropic material modelling; Augmented Hooke s law; Experimental damping estimation; Finite element displacement modes; Hybrid modal analysis; Experimental modal analysis; Structural vibration modelling;

    Abstract : .... READ MORE