Details
| Original language | English |
|---|---|
| Article number | 052502 |
| Journal | Journal of Engineering for Gas Turbines and Power |
| Volume | 141 |
| Issue number | 5 |
| Publication status | Published - May 2019 |
Abstract
ASJC Scopus subject areas
- Energy(all)
- Nuclear Energy and Engineering
- Energy(all)
- Fuel Technology
- Engineering(all)
- Aerospace Engineering
- Energy(all)
- Energy Engineering and Power Technology
- Engineering(all)
- Mechanical Engineering
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In: Journal of Engineering for Gas Turbines and Power, Vol. 141, No. 5, 052502, 05.2019.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Reduced-Order Modeling of Bladed Disks Considering Small Mistuning of the Disk Sectors
AU - Schwerdt, Lukas
AU - Willeke, Sebastian
AU - Panning-von Scheidt, Lars
AU - Wallaschek, Jörg
N1 - © 2019 by ASME
PY - 2019/5
Y1 - 2019/5
N2 - A model order reduction method based on the component mode synthesis for mistuned bladed disks is introduced, with one component for the disk and one component for each blade. The interface between the components at the blade roots is reduced using the wave-based substructuring (WBS) method, which employs tuned system modes. These system modes are calculated first, and used subsequently during the reduction of the individual components, which eliminates the need to build a partially reduced intermediate model with dense matrices. For the disk, a cyclic Craig–Bampton (CB) reduction is applied. The deviations of the stiffness and mass matrices of individual disk sectors are then projected into the cyclic basis of interior and interface modes of the disk substructure. Thereby, it is possible to model small disk mistuning in addition to large mistuning of the blades.
AB - A model order reduction method based on the component mode synthesis for mistuned bladed disks is introduced, with one component for the disk and one component for each blade. The interface between the components at the blade roots is reduced using the wave-based substructuring (WBS) method, which employs tuned system modes. These system modes are calculated first, and used subsequently during the reduction of the individual components, which eliminates the need to build a partially reduced intermediate model with dense matrices. For the disk, a cyclic Craig–Bampton (CB) reduction is applied. The deviations of the stiffness and mass matrices of individual disk sectors are then projected into the cyclic basis of interior and interface modes of the disk substructure. Thereby, it is possible to model small disk mistuning in addition to large mistuning of the blades.
UR - http://www.scopus.com/inward/record.url?scp=85058507564&partnerID=8YFLogxK
U2 - 10.1115/1.4041071
DO - 10.1115/1.4041071
M3 - Article
AN - SCOPUS:85058507564
VL - 141
JO - Journal of Engineering for Gas Turbines and Power
JF - Journal of Engineering for Gas Turbines and Power
SN - 0742-4795
IS - 5
M1 - 052502
ER -