Sökning: "KTH maskinkonstruktion"

Visar resultat 1 - 5 av 128 avhandlingar innehållade orden KTH maskinkonstruktion.

  1. 1. Methodological Simplification in Comparative Life Cycle Assessment and Consequences on Validity

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Katja Tasala Gradin; KTH.; [2019]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Life Cycle Assessment; internal validity; external validity; comparative LCA; isolated part; omitted part; road vehicles; drivetrains; disc brakes; isolation criteria checklist; Machine Design; Maskinkonstruktion;

    Sammanfattning : Life Cycle Assessment (LCA) is central to the development of sustainable products. LCA assesses the environmental impact of a product, service, or system through-out its whole life cycle, from material extraction to end-of-life phase. LÄS MER

  2. 2. Adhesion and Friction - a Study on Tactility

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Kenneth Duvefelt; Ulf Olofsson; Emile Van Der Heide; [2016]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Adhesion; finger; friction; humidity; material; model; tactile friction; tactility; Machine Design; Maskinkonstruktion;

    Sammanfattning : Although we are surrounded by hundreds of surfaces we can still distinguish them from each other simply by touch. The tactile information, interpreted by our brain and given by our fingers, is precise, but to put words to the sensation is very difficult — is it smooth, sticky or harsh? We do not only perceive surfaces differently, we also describe them in our own way. LÄS MER

  3. 3. TILLBLIVELSER En trasslig berättelse om design som normkritisk praktik

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Karin Ehrnberger; Sara Ilstedt; Minna Räsänen; Ylva Gislén; Erling Björgvinsson; [2017]
    Nyckelord :HUMANIORA; HUMANITIES; Machine Design; Maskinkonstruktion;

    Sammanfattning : The increasing awareness of norm-critical perspectives (in society, academia and industry) brings with it the need to develop methods to ensure they can be implemented in practice. This thesis discusses how the role of design contributes to and maintains norms, and shows how design as a norm critical practice has great potential to bridge the gap between theory and practice in norm-critical work. LÄS MER

  4. 4. Laboratory measurements of airborne emissions from car brakes for clean air

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Guido Perricone; Ulf Olofsson; Fulvio Amato; [2020]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Automotive brake; non-exhaust emissions; inertia brake dynamometer; airborne particles; PM10; PN; isokinetic sampling; Rebrake; volatiles; real driving cycle; car brake emission factors; running-in.; Bilbroms; icke-avgasemissioner; skivbromsdynamometer; luftburna partiklar; PM10; PN; isokinetisk provtagning; Rebrake; volatiler; verkliga körcykler; emissionsfaktorer; in-körning.; Machine Design; Maskinkonstruktion;

    Sammanfattning : Brake systems are used to safely stop vehicles. The brake pads are pressed against the brake disc, transforming the kinetic energy of the vehicle into heat to be dissipated. LÄS MER

  5. 5. An experimental investigation of spur gear efficiency and temperature A comparison between ground and superfinished surfaces

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Martin Andersson; Ulf Olofsson; Bengt-Göran Rosén; [2017]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; gears; ground; superfinished; efficiency; temperature; running-in; dip lubrication; spray lubrication; Machine Design; Maskinkonstruktion;

    Sammanfattning : This thesis focuses on reliability when testing gear efficiency and on how gear mesh efficiency can be increased without detrimental effects on the gears. Test equipment commonly used in gear research was analysed to identify important parameters for gear efficiency testing. LÄS MER