Doctoral theses of the School of Engineering at Aaltodoc (external link)
Doctoral theses of the School of Engineering are available in the open access repository maintained by Aalto, Aaltodoc.
Public defence in Rotordynamics, M.Sc. Sampo Laine
Public defence from the Aalto University School of Engineering, Department of Energy and Mechanical Engineering.
When
–
Where
Lecture Hall 216, Otakaari 4, K1 Building
Event language(s)
English
Lateral and Torsional Vibrations in Variable Speed Rotating Machinery
Thesis defender: Sampo Laine
Opponent: Prof. Rainer Nordmann, Technical University of Darmstadt, Germany
Custos: Prof. Raine Viitala, Aalto University School of Engineering
The dissertation examines vibration challenges in rotating machines with variable speeds. The research falls within the field of rotordynamics, which studies the vibration phenomena of rotating machinery. The purpose of the dissertation has been to investigate vibration mitigation methods based on stiffness control and the vibration challenges caused by the electromagnetics of electric motors in machines.
The dissertation presents a new vibration damping method based on controlling the stiffness of rotor support and a new modeling method for considering electromagnetic phenomena in torsional vibration calculations. Part of the research has also involved the development of an open-source vibration library, which has been released for free use by researchers and companies in the field. The results obtained from the study are used in the future to improve the vibration performance, especially in variable speed machines.
Thesis available for public display 10 days prior to the defence at Aaltodoc.
Contact information:
E-mail: sampo.laine@iki.fi
Doctoral theses of the School of Engineering
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