A4 Conference proceedings

Identification of frame dynamics of vertically oriented high-speed steam generator using model update procedure for reduced-order model


Publication Details
Authors: Sikanen Eerik, Heikkinen Janne, Sillanpää Teemu, Scherman Eero, Sopanen Jussi
Publication year: 2020
Language: English
Title of parent publication: Proceedings of the 12th Virtual Conference on Vibrations in Rotating Machinery (VIRM)
eISBN: 9781003132639
JUFO-Level of this publication: 1
Open Access: Not an Open Access publication

Abstract

Active Magnetic Bearing (AMB) systems are common in high-speed rotating machinery. Bearing control system
input is the relative displacement data measured between the sensor and the measurement surface. In case of
frame resonance, controller may create a feedback loop which may amplify the frame vibration modes. The frame vibration dynamics of 1 MW steam generator with AMB-support is studied. Vibration mode identification using FE-based model are discussed. Model-order reduction techniques are utilized to solve a large-scale numerical problem. The paper shows an update procedure for a computationally efficient reduced-order model that can be used for identifying measured unclear vibration modes.


Last updated on 2020-07-12 at 09:02

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