Search for dissertations about: "vibration reduction"

Showing result 6 - 10 of 68 swedish dissertations containing the words vibration reduction.

  1. 6. Structure-acoustic analysis; finite element modelling and reduction methods

    University dissertation from Division of Structural Mechanics, Box 118; 221 00 Lund

    Author : Peter Davidsson; Lunds universitet.; Lund University.; [2004]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mechanical engineering; hydraulics; vacuum technology; vibration and acoustic engineering; Maskinteknik; hydraulik; vakuumteknik; vibrationer; akustik; low frequency range; building acoustics; lightweight structures; porous materials; modal reduction; substructuring; finite element analysis; structural acoustics; vibroacoustics; Structural dynamics;

    Abstract : Popular Abstract in Swedish Avhandlingen behandlar finita element analys av det kopplade problemet bestående av en akustisk fluid innesluten av en flexibel struktur. Det studerade problemområdet kan också innehålla poröst ljudabsorberande material. READ MORE

  2. 7. Vibrations in Metal Cutting Measurement, Analysis and Reduction

    University dissertation from Karlskrona : Blekinge Institute of Technology

    Author : Linus Pettersson; Blekinge Tekniska Högskola.; [2002]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : Vibration and noise in metal cutting are ubiquitous problems in the workshop. The turning operation is one kind of metal cutting that exhibits vibration related problems. Today the industry aims at smaller tolerances in surface finish. Harder regulations in terms of the noise levels in the operator environment are also central. READ MORE

  3. 8. On Fluid Power Pump and Motor Design Tools for Noise Reduction

    University dissertation from Linköping : Linköping University Electronic Press

    Author : Liselott Ericson; Linköpings universitet.; Linköpings universitet.; [2012]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : Noise and vibration are two of the main drawbacks with fluid power  systems. The increasing requirements concerning working environment as well as machines' impact on surroundings put components and systems to harder tests. The surrounding machines, e.g. READ MORE

  4. 9. Vibration-induced muscle injury in the hand - experimental and clinical studies

    University dissertation from Lars E Necking, Department of Hand Surgery, Malmö University Hospital, SE-205 02 Malmö, Sweden

    Author : Lars Necking; Lunds universitet.; Lund University.; [2003]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; traumatologi; Surgery; muscle morphometry; intrinsic hand muscle; muscle strength; muscle injury; hand weakness; Vibration exposure; hand-arm vibration syndrome; orthopaedics; traumatology; Kirurgi; ortopedi;

    Abstract : Popular Abstract in Swedish Störningar i händernas finmotorik, kraft och känsel är vanliga symtom efter långvarigt bruk av handhållna vibrerande verktyg. I gynnsamma och lindriga fall kan dessa besvär gå tillbaka efter upphörande av expositionen för vibrationer. READ MORE

  5. 10. Identification and Synthesis of Components for Vibration Transfer Path Analysis

    University dissertation from Lars E Necking, Department of Hand Surgery, Malmö University Hospital, SE-205 02 Malmö, Sweden

    Author : Per Sjövall; [2007]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Sensor placement; Indirect sensing; Vibration control; System identification; Experimental methods; Substructuring; Kalman filter; Transfer path analysis; State-space models;

    Abstract : Transmission of structure-borne vibrations in built-up structures, e.g. vehicles such as aircraft, automobiles and trains, is addressed. Methodologies for modeling, analysis, prediction and reduction of vibrations are developed. READ MORE