Sökning: "Actuation"

Visar resultat 1 - 5 av 124 avhandlingar innehållade ordet Actuation.

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

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

    Sammanfattning : 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. LÄS MER

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

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

    Sammanfattning : 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. LÄS MER

  4. 3. Designing Microfluidic Control Components

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

    Sammanfattning : .... LÄS MER

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

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

    Sammanfattning : 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. LÄS MER

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

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

    Sammanfattning : 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. LÄS MER