Nonlinear rotordynamic-thermal analysis of micro gas turbines

F. Duijnhouwer, R.H.B. Fey, H. Nijmeijer

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Abstract

A compliant tilting pad air bearing concept has been proposed as a solution for low power micro gas turbines. In this paper, the nonlinear dynamic models for this bearing concept are extended with a thermal model. With simulations and experiments it is demonstrated that the thermal expansion of the bearing journals may negatively affect the power loss, and the nonlinear rotordynamic response of the rotor and these bearings. Therefore, designing these bearings for a micro gas turbine requires both a nonlinear rotordynamic model and a thermal model of the micro turbine.
Original languageEnglish
Title of host publicationProceedings of the 9th European Nonlinear Dynamics Conference (ENOC 2017), 25-30 June 2017, Budapest, Hungary
Number of pages2
ISBN (Electronic)978-963-12-9168-1
Publication statusPublished - 2017
Event9th European Nonlinear Oscillations Conference (ENOC 2017) - Budapest University of Technology and Economics, Budapest, Hungary
Duration: 25 Jun 201730 Jun 2017
Conference number: 9
http://congressline.hu/enoc2017/

Conference

Conference9th European Nonlinear Oscillations Conference (ENOC 2017)
Abbreviated titleENOC 2017
CountryHungary
CityBudapest
Period25/06/1730/06/17
Internet address

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