Search for dissertations about: "Övrig teknisk mekanik"

Showing result 1 - 5 of 84 swedish dissertations containing the words Övrig teknisk mekanik.

  1. 1. Road surface characterization using near infrared spectroscopy

    University dissertation from Luleå : Luleå tekniska universitet

    Author : Johan Casselgren; Luleå tekniska universitet.; [2011]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Engineering mechanics - Other engineering mechanics; Spektroskopi; Väglagsklassificering; Friktion; Väglagskarakterisering; Teknisk mekanik - Övrig teknisk mekanik; Experimental Mechanics; Experimentell mekanik;

    Abstract : This thesis presents a technology and method for classifying and characterizing different road conditions such as dry asphalt and asphalt covered with water, ice and snow. The method uses light sources of different wavelengths to illuminate the road surface and a detector to measure the reflected light from the road surfaces, dependent on how the surface have absorbed, scattered and polarized the light it is possible to classify the road condition. READ MORE

  2. 2. Multi-objective optimization of railway bogie suspension damping

    University dissertation from Chalmers University of Technology

    Author : Albin Johnsson; Chalmers tekniska högskola.; Chalmers University of Technology.; [2011]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Optimeringslära; systemteori; Optimization; systems theory; Farkostteknik; Vehicle engineering; Fastkroppsmekanik; Solid mechanics; Övrig teknisk mekanik; Other engineering mechanics; Multi-objective optimization; Railway vehicle dynamics; Bogie suspension design; Pareto optimized bogie primary and secondary suspensions damping;

    Abstract : In this thesis multi-objective optimization is used to find Pareto fronts showing the set of optimized damping parameters of primary and secondary bogie suspensions. Special interests are put on requirements to enhance safety and comfort of a railway vehicle. READ MORE

  3. 3. Washing Machine Design Optimization Based on Dynamics Modeling

    University dissertation from Chalmers University of Technology

    Author : Thomas Nygårds; Chalmers tekniska högskola.; Chalmers University of Technology.; [2011]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Reglerteknik; Automatic control; Fastkroppsmekanik; Solid mechanics; Konstruktionsteknik; Construction engineering; Övrig teknisk mekanik; Other engineering mechanics; Washing machine; Suspensions; Modeling; Experiments; Vibration dynamics; Multiobjective Optimization; Automatic balancing; Semi-active control.;

    Abstract : The spinning process in a washing machine is a source of undesired vibrations and noise and may cause discomfort both to the user as well as for the machine itself due to vibrations which have impact on system lifetime, reliability of operation and capacity. The aim of this thesis is to develop mathematical and computational models of a washing machine of modern type and use these models for dynamics analysis and in optimization routines to make improvements of the machine mechanical design. READ MORE

  4. 4. Modeling of foams for impact simulations

    University dissertation from Chalmers University of Technology

    Author : Mats Landervik; Chalmers tekniska högskola.; Chalmers University of Technology.; [2008]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fastkroppsmekanik; Solid mechanics; Övriga teknikvetenskaper; Other technology; Foams; Constitutive modeling; Theory of Porous Media; Computational Homogenization; Multiscale Analysis; Shell theory.;

    Abstract : Stimulated by the strong drive in the automotive industry to reduce energy consumption, and, linked to that, the need to reduce weight, this thesis concerns modeling of foams for impact simulations. To start with, a continuum hyperelasto-viscoplastic model is developed within the framework of Theory of Porous Media. READ MORE

  5. 5. Integration of Sustainability Aspects in Product Development

    University dissertation from Göteborg : Chalmers University of Technology and Göteborg University

    Author : Sophie Byggeth; Blekinge Tekniska Högskola.; Chalmers tekniska högskola.; Chalmers University of Technology.; [2001]
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; sustainability; sustainable product development; MSPD; SPA.; Teknik och social förändring; Technology and social change; sus´tainable product development; SPA;

    Abstract : Integration of sustainability aspects into the product development process has been difficult to achieve, especially for small and medium-sized enterprises. The main reason is that existing tools are experienced to be too detailed and as a result too demanding in terms of time and resources. READ MORE