The doctoral dissertations of the former Helsinki University of Technology (TKK) and Aalto University Schools of Technology (CHEM, ELEC, ENG, SCI) published in electronic format are available in the electronic publications archive of Aalto University - Aaltodoc.
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Dissertation for the degree of Doctor of Science in Technology to be presented with due permission of the Department of Computer Science and Engineering for public examination and debate in Auditorium T2 at Helsinki University of Technology (Espoo, Finland) on the 14th of June, 2006, at 12 noon.
Dissertation in PDF format (ISBN 951-22-8168-6) [2522 KB]
Dissertation is also available in print (ISBN 951-22-8167-8)
A new method of developing control systems on the basis of dynamic virtual prototyping (DVP) has been proposed. The method facilitates the control system development process by means of (1) automating the transition from the conventional DVP of a plant to the dynamic model suitable for the control system design and (2) integrating the development process into the overall lifecycle.
The method comprises the three principal stages: (1) representing the plant by its DVP; (2) simulating the DVP and generating the data-based model of the plant; (3) designing the control system using the generated data-based model. Stages 1 and 2 are supported by DVP systems (e.g. IGRIP, LMS/VirtualLab, MSC SimOffice), stage 3 is accomplished by CACSD.
The proposed development method has been adapted to the class of plants that are linearizable, quasi-stationary, stable or stabilizable without using the analytical model and have lumped parameters. The specifics of applying the conventional methods of identification and control system design in the context of DVP have been revealed and analyzed.
The engineering applicability of the method has been proved by means of developing the control system for fine positioning of a gantry crane load.
Keywords: dynamic virtual prototyping, CALS, PLM, CAD, CAE, digital mockup, IGRIP, control systems, development, design, integration, mechatronic systems, gantry crane
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© 2006 Helsinki University of Technology