Sökning: "grey box"

Visar resultat 1 - 5 av 26 avhandlingar innehållade orden grey box.

  1. 1. Grey-box Identification of Distributed Parameter Systems

    Författare :Yi Liu; Elling W. Jacobsen; Denis Dochain; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrical engineering; grey-box modeling; grey-box identification; model reduction; PDE; chromatography; bifurcation; moving mesh methods; orthogonal collocation on moving finite elements; OCMFE; Elektroteknik; elektronik och fotonik; Electrical engineering; electronics and photonics; Elektroteknik; elektronik och fotonik;

    Sammanfattning : This thesis considers the problem of making dynamic models for industrial processes by combining physical modelling with experimental data. The focus is on distributed parameter systems, that is, systems for which the model structure involves partial differential equations (PDE). Distributed parameter systems are important in many applications, e. LÄS MER

  3. 2. Grey box modelling for temperature estimation

    Författare :Jan Spännar; Örebro universitet; []
    Nyckelord :TECHNOLOGY; TEKNIKVETENSKAP; Industrial Measurement Technology; Industriell mätteknik;

    Sammanfattning : .... LÄS MER

  4. 3. Modelling and grey-box identification of curl and twist in paperboard manufacturing

    Författare :Gianantonio Bortolin; Anders Lindquist; Guy Dumont; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; System identification; process control; Grey-box modelling; outlier detection; Statistics; computer and systems science; Statistik; data- och systemvetenskap;

    Sammanfattning : The contents of this thesis can be divided into two main parts. The first one is the development of an identification methodology for the modelling of complex industrial processes. The second one is the application of this methodology to the curl and twist problem. LÄS MER

  5. 4. Data-driven Ship Performance Models - - Emphasis on Energy Efficiency and Fatigue Safety

    Författare :Xiao Lang; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; semi-empirical; energy efficiency; fatigue assessment; grey-box; full-scale measurements; speed-power relationship; added resistance due to waves; ship performance; machine learning;

    Sammanfattning : Due to digitalization in the maritime industry, a huge amount of ship operation-related data has been collected. The main objective of this thesis is to exploit machine learning/big data analytics to build data-driven ship performance models, focusing on speed-power relationship modeling, and fatigue accumulation assessment during a ship’s operation at sea. LÄS MER

  7. 5. On Modelling and Estimation of Curl and Twist in Multi-Ply Paperboard

    Författare :Gianantonio Bortolin; KTH; []
    Nyckelord :modelling; grey box; curl;

    Sammanfattning : This thesis describes a grey-box model for the dimensionalstability properties (i.e. curl and twist) of the carton boardproduced at AssiDomän Frövi paper mill in Sweden.AssiDomän Frövi AB is one of Sweden major cartonboard manufacturer, and produces some 350000 ton of board peryear. LÄS MER