Sökning: "parametric design"

Visar resultat 11 - 15 av 250 avhandlingar innehållade orden parametric design.

  1. 11. Spectral Management in Quasi-Phase-Matched Parametric Devices

    Författare :Mikael Tiihonen; Fredrik Laurell; Jean-Jaques Zondy; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; optical parametric devices; nonlinear optics; ultraviolet generation; mid-infrared generation; optical parametric oscillator; optical parametric generator; optical parametric amplifier; Optical physics; Optisk fysik;

    Sammanfattning : Nonlinear optical interaction in quasi-phase-matched structures opens up unique possibilities to build compact and efficient parametric devices such as optical parametric oscillators, generators, and amplifiers with tailored spectral properties. The focus of this thesis is on novel parametric interactions with periodically-poled KTiOPO4 (PPKTP) as the parametric gain medium. LÄS MER

  3. 12. On Aircraft Conceptual Design : A Framework for Knowledge Based Engineering and Design Optimization

    Författare :Kristian Amadori; Petter Krus; Christopher Jouannet; Johan Ölvander; Ulf Sellgren; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Computer and systems science; Data- och systemvetenskap;

    Sammanfattning : This thesis presents a design framework where analytical tools are linked together and operated from an efficient system level interface. The application field is aircraft conceptual design. Particular attention has been paid to CAD system integration and design optimization.Aircraft design is an inherently multidisciplinary process. LÄS MER

  4. 13. Towards Computational Design Methods for Conceptual and Parametric Design

    Författare :Johan Malmqvist; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : The subject matter of this dissertation is computational design methods for mechanical design. The term computational design method here denotes a method by which a computer program can perform one or more steps in a design process. LÄS MER

  5. 14. Knowledge-Based Integrated Aircraft Design : An Applied Approach from Design to Concept Demonstration

    Författare :Raghu Chaitanya Munjulury; Petter Krus; Tomas Melin; Christopher Jouannet; Gianfranco La Rocca; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : The design and development of new aircraft are becoming increasingly expensive and timeconsuming. To assist the design process in reducing the development cost, time, and late design changes, the conceptual design needs enhancement using new tools and methods. LÄS MER

  7. 15. Viscoelastic Materials : Identification and Experiment Design

    Författare :Agnes Rensfelt; Torsten Söderström; Händel Peter; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; viscoelastic materials; complex modulus; system identification; optimal experiment design; distributed parameter systems; frequency domain identification; wave propagation; Automatic control; Reglerteknik; Elektroteknik med inriktning mot reglerteknik; Electrical Engineering with specialization in Automatic Control;

    Sammanfattning : Viscoelastic materials can today be found in a wide range of practical applications. In order to make efficient use of these materials in construction, it is of importance to know how they behave when subjected to dynamic load. LÄS MER