Search for dissertations about: "machine building"

Showing result 1 - 5 of 63 swedish dissertations containing the words machine building.

  1. 1. Modelling the Variability of Bending Strength in Structural Timber - Length and Load Configuration Effects

    University dissertation from Division of Structural Engineering, Lund University, P.O Box 118, SE-221 00 Lund, Sweden

    Author : Tord Isaksson; Lunds universitet.; Lund University.; [1999]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; code; reliability-based design; Weibull; test standard; load configuration effect; length effect; weak section; machine grading; visual grading; variability; Structural timber; bending strength; simulation; monte carlo simulation.; Building construction; Byggnadsteknik;

    Abstract : Popular Abstract in Swedish Hållfastheten hos en balk av konstruktionsvirke är beroende av balkens spännvidd och typ av belastning. En längre balk har en lägre hållfasthet än en kort balk på samma sätt som en balk med konstant moment har lägre hållfasthet än en balk belastad med en punktlast. READ MORE

  2. 2. Strength grading of structural timber and EWP laminations of Norway spruce - Development potentials and industrial applications

    University dissertation from Växjö : Linnaeus University Press

    Author : Jan Oscarsson; RISE.; [2014]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Byggteknik; Civil engineering; fibre angle; grain angle; knots; laser scanning; machine strength grading; modulus of elasticity; side boards; strain; structural timber; wet gluing; wood;

    Abstract : Hållfasthetssortering av konstruktionsvirke är en sågverksprocess som innebär att värdet av det sågade virket ökar väsentligt. Principen för denna typ av sortering är att styrkan hos ett virkesstycke predikteras med utgångspunkt från en så kallad indikerande egenskap (IP) som oftast representeras av medelvärdet av elasticitetsmodulen (E-modulen) mätt över en sträcka av minst en meter utmed virkesstyckets längd. READ MORE

  3. 3. Structural-acoustic analysis of wall-to-floor joints in timber-framed housing

    University dissertation from Växjö : School of Technology and Design, Växjö University

    Author : Åsa Bolmsvik; Växjö universitet.; [2009]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TECHNOLOGY Engineering physics Acoustics; TEKNIKVETENSKAP Teknisk fysik Akustik; TECHNOLOGY Civil engineering and architecture Building engineering; TEKNIKVETENSKAP Samhällsbyggnadsteknik och arkitektur Byggnadsteknik; Byggteknik; Civil engineering;

    Abstract : Even though a building meets the regulations with respect to impact sound, structures with wooden frames may receive complaints from the inhabitants due to structure-borne sound in the lower frequencies. In this thesis measuring methods that are more precise than the traditional measuring methods have been used to see if they could give a better knowledge about flanking transmission in the low frequencies in timber-framed structures. READ MORE

  4. 4. Structural-acoustic vibrations in wooden assemblies: Experimental modal analysis and finite element modelling

    University dissertation from Växjö, Sweden : Linnaeus University Press

    Author : Åsa Bolmsvik; Linnéuniversitetet.; [2013]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; wooden framed structure; light weight buildings; multi-storey; flanking transmission; junction; vibration distribution; impact noise; damping; elastomers; finite element analysis; experimental modal analysis; FRF; trästomme; träkonstruktion; träbyggnad; flervåningshus; EMA; FEM; flanktransmission; koppling; knutpunkt; vibrationsspridning; stomljud; stegljud; dämpning; elastomerer; finit elementmetod; experimentell modalanalys; accelerationsmätning; frekvensresponsfunktion; modalanalys;

    Abstract : This doctoral thesis concerns flanking transmission in light weight, wooden multi-storey buildings within the low frequency, primarily 20-120 Hz. The overall aim is to investigate how the finite element method can contribute in the design phase to evaluate different junctions regarding flanking transmission. READ MORE

  5. 5. Translation as Linear Transduction Models and Algorithms for Efficient Learning in Statistical Machine Translation

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Markus Saers; Uppsala universitet.; [2011]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; linear transduction; linear transduction grammar; inversion transduction; zipper finite-state automaton; zipper finite-state transducer; formal language theory; formal transduction theory; translation; automatic translation; machine translation; statistical machine translation; HUMANITIES and RELIGION Languages and linguistics Linguistic subjects Computational linguistics; HUMANIORA och RELIGIONSVETENSKAP Språkvetenskap Lingvistikämnen Datorlingvistik; HUMANITIES and RELIGION Languages and linguistics Linguistic subjects Language technology; HUMANIORA och RELIGIONSVETENSKAP Språkvetenskap Lingvistikämnen Språkteknologi; Computational Linguistics; Datorlingvistik;

    Abstract : Automatic translation has seen tremendous progress in recent years, mainly thanks to statistical methods applied to large parallel corpora. Transductions represent a principled approach to modeling translation, but existing transduction classes are either not expressive enough to capture structural regularities between natural languages or too complex to support efficient statistical induction on a large scale. READ MORE