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Visar resultat 1 - 5 av 47 avhandlingar som matchar ovanstående sökkriterier.

  1. 1. Cost Optimization of Aircraft Structures

    Författare :Markus Kaufmann; Dan Zenkert; Malin Åkermo; Per Wennhage; Erik Lund; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; aircraft structures; optimization; cost estimation; manufacturing cost; direct operating cost; multiobjective optimization; multidisciplinary optimization; composites; airframe design; Vehicle engineering; Farkostteknik;

    Sammanfattning : Composite structures can lower the weight of an airliner significantly. Due to the higher process complexity and the high material cost, however, the low weight often comes with a significant increase in production cost. The application of cost-effective design strategies is one mean to meet this challenge. LÄS MER

  3. 2. Structural-Acoustic Optimization of Sandwich Panels

    Författare :Per Wennhage; KTH; []
    Nyckelord :Optimization; acoustics; multidisciplinary; sandwich; composite; sound reduction index; railway vehicle;

    Sammanfattning : .... LÄS MER

  4. 3. Knowledge Based Integrated Multidisciplinary Aircraft Conceptual Design

    Författare :Venkata Raghu Chaitanya Munjulury; Petter Krus; Roland Stolt; Linköpings universitet; []
    Nyckelord :Knowledge-base; Aircraft; Conceptual Design; CAD; XML Database; Multidisciplinary; Optimization;

    Sammanfattning : With the ever growing complexity of aircrafts, new tools and eventually methods to use these tools are needed in aircraft conceptual design. To reduce the development cost, an enhancement in the conceptual design is needed.This thesis presents a knowledge-based aircraft geometry design tool RAPID and the methodology applied in realizing the design. LÄS MER

  5. 4. Collaborative Multidisciplinary Design Optimization : A Framework Applied on Aircraft Systems and Industrial Robots

    Författare :Edris Safavi; Johan Ölvander; Björn Lundén; Linköpings universitet; []
    Nyckelord :;

    Sammanfattning : In a product development process, it is crucial to understand and evaluate multiple and synergic aspects of systems such as performance, cost, reliability and safety. In order to improve the foundations for decision-making, this thesis presents methods that are intended to increase the engineering knowledge in the early design phases. LÄS MER

  7. 5. Towards Design Automation for Additive Manufacturing : A Multidisciplinary Optimization approach

    Författare :Anton Wiberg; Johan Andersson (Ölvander); Johan Persson; Lars Pejryd; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : In recent decades, the development of computer-controlled manufacturing by adding materiallayer by layer, called Additive Manufacturing (AM), has developed at a rapid pace. The technologyadds possibilities to the manufacturing of geometries that are not possible, or at leastnot economically feasible, to manufacture by more conventional manufacturing methods. LÄS MER