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The University of Southampton

Turbomachinery Rotordynamics –Methods, tools, current developments and future aspects on the dynamics of industrial turbomachinery  Seminar

28 November 2017
Building 13 Room 3017

Event details

ISVR Engineering Research Seminar Series 2017-2018

Rotordynamic design evaluation of large turbines for electric power generation and of small turbosystems, experiences a continuous development aiming to implement recent achievements in regards of physics of body motion, to benefit from the modern software and computing capacity of computers, and to include innovative ideas to meet power demands, mechanical integrity, and environmental concerns. 

The lecture aims to present to the audience the major concerns on the rotordynamic design evaluation of industrial turbomachinery (gas/steam turbines and turbochargers), to describe the physical principles implemented in the modern software for rotordynamic analysis, and to indicate the major concerns for Research & Development considering both high-and medium-speed rotating systems. Furthermore, innovative concepts on the embedment of mechatronics in turbomachinery, and on the alternative oil-free bearing elements will be demonstrated and discussed as concepts of increasing interest among the technical and scientific community related to rotordynamics, bearings, motion and vibration control. 

The demand for innovative rotating machines will be justified demonstrating the correlation of machine design and the increasing demands for transport, energy supply, and environmental awareness. 

Speaker information

Athanasios Chasalevris, General Electric. Athanasios Chasalevris received his Diploma in Mechanical Engineering and Aeronautics from University of Patras (UoP)-Greece in 2004 and he completed his PhD Thesis in the same institution in 2009 on vibration analysis of rotating systems with crack and wear defects. He joined Technical University Darmstadt (TUD)-Germany as Alexander von Humboldt Foundation postdoctoral researcher (2010-2012) and as research associate (2012-2013) in the same institution where he performed theoretical and experimental work on the fluid film bearings, their defects, and their potentiality to adjust the dynamics of rotating shafts. He joined BorgWarner Turbosystems-Germany in 2013 within the position of Rotordynamic Engineer in the R&D engineering of turbochargers for passenger cars, commercial lorries, and marine diesel engines. In early 2015 he joined General Electric Co.-United Kingdom (ALSTOM Power at that time) in the position of Rotordynamic and Mechanical Integrity Engineer in Execution and R&D Engineering of industrial steam turbines for electric power generation. He has authored or co-authored more than 50 articles published in international journals and peer-reviewed conference proceedings on rotordynamics. His written work includes patents and various industrial reports on the rotordynamic assessment of high-and medium-speed turbomachinery. He is journal referee in more than 30 international journals, associate editor in the Journal of Shock and Vibration, and has served as guest editor in the International Journal of Rotating Machinery.

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