Sökning: "subsystem"

Visar resultat 16 - 20 av 141 avhandlingar innehållade ordet subsystem.

  1. 16. On the Realization of Credible Simulations in Aircraft Development : Efficient and Independent Validation Enabled by Automation

    Författare :Robert Hällqvist; Petter Krus; Magnus Eek; Robert Braun; Gerhard Schmitz; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Aircraft Vehicle Systems; Credibility Assessment; FMI; Interoperability; Modelica; Modeling and Simulation; Model integration; SSP;

    Sammanfattning : Designing modern aircraft is not an easy task. Today, it is not enough to optimize aircraft subsystems at a subsystem level. Instead, a holistic approach is necessary whereby the constituent subsystems need to be designed for the best joint performance. LÄS MER

  3. 17. On the Analysis of Energy Efficient Aircraft Engines

    Författare :Oskar Thulin; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Performance modelling; Aero engine; Turbofan; Aircraft engine; Installed propulsion; Ultra high bypass ratio; Exergy analysis; Engine weight estimate; Variable area fan nozzle; Multiple pivoting flaps; Translating cowls;

    Sammanfattning : Aero engine performance analysis is highly multidimensional using various measures of component performance such as turbomachinery and mechanical efficiencies, and pressure loss coefficients. Using conventional performance analysis, relying on only the laws of thermodynamics, it is possible to understand how the performance parameters affect the component performance, but it is difficult to directly compare the magnitude of various loss sources. LÄS MER

  4. 18. Modular Learning and Optimization for Planning of Discrete Event Systems

    Författare :Fredrik Hagebring; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; discrete optimization; large-scale optimization; modular learning; automation; discrete event systems; active learning; Compositional optimization;

    Sammanfattning : Optimization of industrial processes, such as manufacturing cells, can have great impact on their performance. Finding optimal solutions to these large-scale systems is, however, a complex problem. They typically include multiple subsystems, and the search space generally grows exponentially with each subsystem. LÄS MER

  5. 19. Subsystems of the basal ganglia and motor infrastructure

    Författare :Iman Kamali Sarvestani; Örjan Ekeberg; Jeanette Hällgren-Kotaleski; Christelle Baunez; KTH; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Basal Ganglia; Action Selection; Motor Learning; Tectum; Superior Colliculus; Mesencephalic Locomotor Region; Reticulospinal Neurons; Computational Models;

    Sammanfattning : The motor nervous system is one of the main systems of the body and is our principle means ofbehavior. Some of the most debilitating and wide spread disorders are motor systempathologies. In particular the basal ganglia are complex networks of the brain that control someaspects of movement in all vertebrates. LÄS MER

  7. 20. Normal Metal Hot-Electron Microbolometer with Superconducting Andreev Mirrors

    Författare :Denis Chouvaev; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : This thesis concerns development of the Normal metal hot-electron microbolometer (NHEB). The NHEB is an antenna-coupled direct detector of sub-millimeter wave electromagnetic radiation. LÄS MER