Semi-Active Foundation Stiffness Control for Rotor Resonance Avoidance

Sampo S. Laine*, Sampo A. Haikonen, Raine Viitala

*Tämän työn vastaava kirjoittaja

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussaConference article in proceedingsProfessional

106 Lataukset (Pure)

Abstrakti

The operating speed range of large rotating systems is often limited by vibrations caused by subcritical resonances. In this paper, a semi-active control method based on control of the foundation stiffness is presented. Modification in the foundation stiffness of the rotor system results in a corresponding change in the natural frequencies. This principle is used in the developed method to choose an optimal foundation stiffness for each rotating speed of the rotor system. The presented method is validated with a rotor model based on experimental dimensions. The vibration response of the model employing the foundation stiffness optimization is evaluated in the subcritical speed region. With the optimal foundation stiffness, the subcritical resonances caused by multiple rotor bending modes can be avoided in a given speed range. The extent of the resonance-free range depends on the control range of the foundation stiffness. In the light of the presented results, the proposed semi-active foundation stiffness control can be applied to reduce the total vibration levels in rotating systems. The presented method can be applied in any rotating system where it is possible to modify the foundation stiffness during operation.
AlkuperäiskieliEnglanti
OtsikkoProceedings of SIRM 2023 - The 15th European Conference on Rotordynamics
ToimittajatStephan Rinderknecht, Benedikt Schüßler, Sarah Schwarz
KustantajaTechnische Universität Darmstadt
Sivut101-107
Sivumäärä7
DOI - pysyväislinkit
TilaJulkaistu - 2023
OKM-julkaisutyyppiD3 Artikkeli ammatillisessa konferenssijulkaisussa
TapahtumaEuropean Conference on Rotordynamics - Darmstadt, Saksa
Kesto: 22 helmik. 202324 helmik. 2023
Konferenssinumero: 15

Conference

ConferenceEuropean Conference on Rotordynamics
LyhennettäSIRM
Maa/AlueSaksa
KaupunkiDarmstadt
Ajanjakso22/02/202324/02/2023

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