Search for dissertations about: "Actuation"

Showing result 1 - 5 of 123 swedish dissertations containing the word Actuation.

  2. 1. Wave-actuated Preform Infiltration Routines in MMC Production

    Author : Lars-Olov Pennander; Industriell Produktion; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Material technology; Magnetostrictive; Vibration; Actuation; Wave; Infiltration; Preform; Metal; Composites; MMC; Materiallära; materialteknik;

    Abstract : The implementation of highly magnetostrictive wave-actuator techniques in preform infiltration processes for metal-matrix composite production is described. Metal matrix materials require additional methods to handle the content, shape and position of the ceramic reinforcements, which are not required for metal alloy casting. READ MORE

  4. 2. On Energy Efficient Mobile Hydraulic Systems : with Focus on Linear Actuation

    Author : Kim Heybroek; Petter Krus; Jan-Ove Palmberg; Torben Ole Andersen; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : In this dissertation, energy efficient hydraulic systems are studied. The research focuses on solutions for linear actuators in mobile applications, with emphasis on construction machines. Alongside the aspect of energy efficiency, the thesis deals with competing aspects in hydraulic system design found in the development of construction machines. READ MORE

  5. 3. Designing Microfluidic Control Components

    Author : Wouter van der Wijngaart; KTH; []
    Keywords : actuation; beads; bubble; CFD computational fluid dynamics ; diffuser; DNA; electrostatic; energy conversion; FEA finite element analysis ; ;

    Abstract : .... READ MORE

  6. 4. Nonresonant high-frequency actuation of carbon based nanoelectromechanical oscillators

    Author : Martin Eriksson; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; nanoelectromechanical oscillators; graphene; nonresonant; mechanical vibra- tions; selective mode actuation;

    Abstract : Carbon based nanoelectromechanical oscillators outperform their predecessors in many ways. In particular, their extraordinarily high quality factors make them very promising for sensor applications. To operate the nano oscillators, different kinds of actuation mechanisms are utilised, for instance direct or parametric resonance. READ MORE

  7. 5. Improving energy-efficiency of electric vehicles by over-actuation : Du som saknar dator/datorvana kan kontakta [email protected] för information

    Author : Peikun Sun; Annika Stensson Trigell; Lars Drugge; Jenny Jerrelind; Gordon Timothy; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Vehicle and Maritime Engineering; Farkostteknik;

    Abstract : As the concerns regarding environmental pollution, climate change and the fossilfuel crisis have grown, electric vehicles (EVs) have attracted a great deal of attention. However, for EVs to be more competitive compared with internal combustion engine vehicles (ICEVs), their driving range needs to be increased. READ MORE