Results 21 to 30 of about 471 (183)

Research overview on vibration damping of mistuned bladed disk assemblies

open access: yesJournal of Hebei University of Science and Technology, 2016
Bladed disk assemblies are very important parts in auto engine and gas turbine, and is widely used in practical engineering. The mistuning existing commonly in the bladed disk assemblies can destroy the vibration characteristics of the bladed disk ...
Liang ZHANG   +3 more
doaj   +1 more source

Study on the optimal design of mistuned bladed disk (Simultaneous optimization of forced and self-excited vibration and amount of unbalance)

open access: yesNihon Kikai Gakkai ronbunshu, 2021
Although bladed disks are nominally designed to be cyclically symmetric (tuned system), the vibration characteristics of all blades on a disk are slightly different due to the manufacturing tolerance, deviations in the material properties, and wear ...
Yasutomo KANEKO   +3 more
doaj   +1 more source

On the Forced Response of Harmonically and Partially Mistuned Bladed Disks. Part I: Harmonic Mistuning

open access: yesInternational Journal of Rotating Machinery, 2000
This series of two papers focuses on the determination and clarification of the characteristics of the forced response of bladed disks that exhibit a mistuning pattern that is either harmonic or partial.
Marc P. Mignolet, Wei Hu, Ioan Jadic
doaj   +1 more source

Study on vibration response characteristics of mistuned bladed disk (Mistuning phenomena of higher modes evaluated by vibratory stress)

open access: yesNihon Kikai Gakkai ronbunshu, 2017
Although bladed disks of turbomachinery are nominally designed to be cyclically symmetric (tuned system), the vibration characteristics of all blades on a disk are slightly different due to the manufacturing tolerance, the deviation of the material ...
Yasutomo KANEKO   +3 more
doaj   +1 more source

Flutter analysis of mistuned bladed disks (Effect of bladed disk structure on flutter characteristics)

open access: yesNihon Kikai Gakkai ronbunshu, 2021
Although bladed disks are nominally designed to be cyclically symmetric (tuned system), the vibration characteristics of all the blades on a disk are slightly different due to the manufacturing tolerance, deviations in the material properties, and wear ...
Yasutomo KANEKO   +2 more
doaj   +1 more source

Mistuning Identification and Model Updating of an Industrial Blisk

open access: yesInternational Journal of Rotating Machinery, 2007
The results of a complete study of mistuning identification on an industrial blisk are presented. The identification method used here is based on a model-updating technique of a reduced order.
D. Laxalde   +4 more
doaj   +1 more source

Effect of Mistuning and Blade Passing Frequencies on a Turbine’s Integral Mode Blade Vibration Detection Using a Pulsation Probe

open access: yesInternational Journal of Turbomachinery, Propulsion and Power, 2023
For engines operating using heavy fuel oil (HFO), the nozzle rings of turbocharger turbines are prone to severe degradation because of contamination with unburned fuel deposits. This contamination may lead to increased excitation of blade resonance.
Takashi Ando
doaj   +1 more source

A Modified Nonlinear Modal Synthesis Scheme for Mistuned Blisks with Synchronized Switch Damping

open access: yesInternational Journal of Aerospace Engineering, 2018
In the authors’ previous work (MSSP 2017), we show that the synchronized switch damping based on negative capacitor (SSDNC) is a good candidate for vibration suppression of tuned blisks.
Jiuzhou Liu   +3 more
doaj   +1 more source

Study on Influence of Multi-Parameter Variation of Bladed Disk System on Vibration Characteristics

open access: yesApplied Sciences, 2021
As the main components of the rotor system of aero-engines and other rotating machinery equipment, the bladed disk system has high requirements on its structure design, safety and stability.
Honggang Pan, Yunshi Wu, Tianyu Zhao
doaj   +1 more source

Nonproportional Intentionally Mistuned Turbine Blisk Design with Improved Component Modal Synthesis

open access: yesShock and Vibration, 2021
An improved component modal synthesis-based nonproportional mistuning method (ICMS-NPMM) is proposed to investigate mistuned turbine blisks (MTBs) since the high-fidelity finite element models (HFEMs) involve large number of computations, which leads to ...
Bin Bai   +4 more
doaj   +1 more source

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