| Issue |
MATEC Web Conf.
Volume 158, 2018
VI International Forum for Young Scientists “Space Engineering 2018”
|
|
|---|---|---|
| Article Number | 01025 | |
| Number of page(s) | 5 | |
| DOI | https://doi.org/10.1051/matecconf/201815801025 | |
| Published online | 19 March 2018 | |
Mathematical model of a flexible asymmetrical rotor for active magnetic bearing reaction wheel
1
Stock Company «Scientific & Industrial Centre «Polyus», 634050 Tomsk, Russia
2
National Research Tomsk Polytechnic University, 634050 Tomsk, Russia
* Corresponding author: polyakovmir91@gmail.com
The paper introduces the mathematical model of rotor for active magnetic bearing reaction/momentum wheels, used as actuator in spacecraft attitude and orbit control system. Developed model is used for estimation of critical speeds and forced oscillation magnitudes with a glance of the rotor modes. Rotor is considered as a two-mass system, consisting of a shaft and a rim, active magnetic bearings are assumed to be a linear elastic springs. The equations of the rotor motion are derived using the Lagrange equation. Developed model is verified by comparing the calculated Campbell diagrams with the results of the finite-element modal analysis, performed in the ANSYS software.
© The Authors, published by EDP Sciences, 2018
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. (http://creativecommons.org/licenses/by/4.0/).
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