Reduced-Order Modeling of Bladed Disks Considering Small Mistuning of the Disk Sectors

Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review

Autoren

  • Lukas Schwerdt
  • Sebastian Willeke
  • Lars Panning-von Scheidt
  • Jörg Wallaschek

Organisationseinheiten

Forschungs-netzwerk anzeigen

Details

OriginalspracheEnglisch
Aufsatznummer052502
FachzeitschriftJournal of Engineering for Gas Turbines and Power
Jahrgang141
Ausgabenummer5
PublikationsstatusVeröffentlicht - Mai 2019

Abstract

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.

ASJC Scopus Sachgebiete

Zitieren

Reduced-Order Modeling of Bladed Disks Considering Small Mistuning of the Disk Sectors. / Schwerdt, Lukas; Willeke, Sebastian; Panning-von Scheidt, Lars et al.
in: Journal of Engineering for Gas Turbines and Power, Jahrgang 141, Nr. 5, 052502, 05.2019.

Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review

Schwerdt L, Willeke S, Panning-von Scheidt L, Wallaschek J. Reduced-Order Modeling of Bladed Disks Considering Small Mistuning of the Disk Sectors. Journal of Engineering for Gas Turbines and Power. 2019 Mai;141(5):052502. doi: 10.1115/1.4041071
Schwerdt, Lukas ; Willeke, Sebastian ; Panning-von Scheidt, Lars et al. / Reduced-Order Modeling of Bladed Disks Considering Small Mistuning of the Disk Sectors. in: Journal of Engineering for Gas Turbines and Power. 2019 ; Jahrgang 141, Nr. 5.
Download
@article{d87b305900fd41d3aed7c49c464b5e42,
title = "Reduced-Order Modeling of Bladed Disks Considering Small Mistuning of the Disk Sectors",
abstract = "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.",
author = "Lukas Schwerdt and Sebastian Willeke and {Panning-von Scheidt}, Lars and J{\"o}rg Wallaschek",
note = "{\textcopyright} 2019 by ASME",
year = "2019",
month = may,
doi = "10.1115/1.4041071",
language = "English",
volume = "141",
journal = "Journal of Engineering for Gas Turbines and Power",
issn = "0742-4795",
publisher = "American Society of Mechanical Engineers(ASME)",
number = "5",

}

Download

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 -