Search for dissertations about: "Maskinkonstruktion"

Showing result 1 - 5 of 380 swedish dissertations containing the word Maskinkonstruktion.

  2. 1. Sustainable Lubrication and Tribotronics enabled by Ionic Materials

    Author : Akepati Bhaskar Reddy; Sergei Glavatskih; Mark W. Rutland; Nicholas Spencer; KTH; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; sustainable lubrication; ionic liquid; tribotronics; lubricating grease; neutron reflectance; Machine Design; Maskinkonstruktion;

    Abstract : Developments in machine design play a crucial role in the global endeavor towards sustainability. The potential for energy conservation and emission reduction has pushed lubrication research to the forefront, with the lubricant considered to be a vital machine component. READ MORE

  4. 2. Exploring affordability in concept generation for complex defence products

    Author : Daniel Amann; Mats Magnusson; Ingrid Kihlander; Poul Kyvsgaard Hansen; KTH; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Affordability; complex product systems; concept generation; CoPS; defence; front end of innovation; innovation management; product development; tournament goods; Machine Design; Maskinkonstruktion;

    Abstract : National defence budgets face pressure from intergenerational escalating costs for complex defence products, such as fighter aircraft and submarines. These escalating costs originate from ever-increasing performance requirements due to the competitive nature of warfare. In combat, only winning is good enough. READ MORE

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

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

    Abstract : 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. READ MORE

  6. 4. A Comparative Investigation of Gear Performance BetweenWrought and Sintered Powder Metallurgical Steel : Utilizing In-situ Surface Profile Measurements to Investigate theInitiation and Evolution of Micropitting and Pitting Damage

    Author : Edwin Bergstedt; Ulf Olofsson; Bengt-Göran Rosén; KTH; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Gear testing; Micropitting; Pitting; Efficiency; Surface transformation; Kugghjulstestning; Micropitting; Pitting; Effektivitetsmätning; Yttransformationer; Machine Design; Maskinkonstruktion;

    Abstract : Vehicle electrification is a strong trend that introduces new challenges, such as increased input speed of the transmission and increased power density. Alsothe noise emittance of the gearbox is of increasing importance, as the sound of the gearbox is no longer masked by the internal combustion engine. READ MORE

  7. 5. Adhesion and Friction - a Study on Tactility

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

    Abstract : 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. READ MORE