Search for dissertations about: "grey-box identification"

Showing result 1 - 5 of 12 swedish dissertations containing the words grey-box identification.

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

    Author : Yi Liu; Elling W. Jacobsen; Denis Dochain; KTH; []
    Keywords : 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;

    Abstract : 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. READ MORE

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

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

    Abstract : 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. READ MORE

  5. 3. Modelling the Moisture Content of Multi-Ply Paperboard in the Paper Machine Drying Section

    Author : Christelle Gaillemard; Anders Lindquist; ALf Isaksson; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Drying section modelling; multi-ply paperboard; moisture content; identification; grey-box modelling; Optimization; systems theory; Optimeringslära; systemteori;

    Abstract : This thesis presents a grey-box model of the temperature and moisture content for each layer of the multi-ply paperboard inside the drying section of a paper mill. The distribution of the moisture inside the board is an important variable for the board quality, but is unfortunately not measured on-line. READ MORE

  6. 4. System Identification of an Engine-load Setup Using Grey-box Model

    Author : Neda Nickmehr; Jan Åslund; Tomas McKelvey; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : With the demand for more comfortable cars and reduced emissions, there is an increasing focus on model-based system engineering. Therefore, developing accurate vehicle models has become significantly important. The powertrain system, which transfers the engine torque to the driving wheels, is one of the most important parts of a vehicle. READ MORE

  7. 5. Nonlinear Structural Identification Using a Multi-Harmonic  Frequency Response Functions

    Author : Vahid Yaghoubi Nasrabadi; Thomas Abrahamsson; Andreas Linderholt; Martin Magnevall; Chalmers; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Nonlinear structure; inverse problem; grey box system identification; finite element model updating; identifiability; Fisher information matrix; multi-harmonic frequency response function; Maskinteknik; Mechanical Engineering;

    Abstract : In industrial structural dynamics problems, linear FE-models commonly serve to represent the global structural behavior. However, when test data are available they often show evidence of nonlinear dynamic characteristics. In that case, an initial linear model may be judged insufficient in representing the dynamics of the structure. READ MORE