Issue |
MATEC Web Conf.
Volume 324, 2020
3rd International Conference “Refrigeration and Cryogenic Engineering, Air Conditioning and Life Support Systems” (CRYOGEN 2019)
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Article Number | 03001 | |
Number of page(s) | 9 | |
Section | Air Conditioning and Life Support Systems | |
DOI | https://doi.org/10.1051/matecconf/202032403001 | |
Published online | 09 October 2020 |
Experimental study of the aircraft air cycle machine rotor dynamics on gas foil bearings
Bauman Moscow State Technical University, Moscow, Russian Federation
a iv.tischenko@bmstu.ru
b vs.nikolaev.bmstu@gmail.com
c vim1935@mail.ru
In this paper the results of the experimental research of the dynamics of the rotor of a four-wheeled aircraft air cycle machine on gas foil supports under conditions of vibration. The description of the experimental unit, measuring system, and methods of results processing is given. The rotor of the turbomachine is mounted on compliant gas foil journal bearings of the second generation. The rotor speed varied from 20000 to 32000 rpm. The cooling turbine was exposed to broadband random vibration with a mean square value of Vibro-acceleration up to 5 g. The influence of vibration load level, air supply temperature, amplitude-frequency characteristics of the turbine cooler case, and vibration equipment on the rotor dynamics was assessed.
Key words: turbomachine / air cycle machine / cooling turbine / gas foil bearings / vibration
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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