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Open AccessArticle

Passive Vibration Reduction Analysis of the Mistuned Blisk Deposited Hard Coating Using Modified Reduced-Order Model

Automation School of Binjiang College, Nanjing University of Information Science and Technology, Wuxi 214105, China
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Coatings 2019, 9(12), 812; https://doi.org/10.3390/coatings9120812
Received: 11 September 2019 / Revised: 6 November 2019 / Accepted: 7 November 2019 / Published: 2 December 2019
(This article belongs to the Section Thin Films)
To improve the reliability and safety of the mistuned blisk (integrally bladed disk), a novel strategy for passive vibration reduction by the hard coating was developed, and the vibration and damping characteristics of the HCM (hard-coating mistuned) blisk were investigated in this work. Firstly, by the proposed criterion called FDSD (frequency difference and its standard deviation), a classical reduced-order model established by the component mode synthesis method was modified to carry out modal analysis for high computational efficiency. Then, forced vibration responses of the HCM blisk were achieved by the Rayleigh damping model. Next, a specific benchmark of a mistuned blisk deposited NiCoCrAlY + YSZ hard coating was chosen to conduct numerical calculations, and the results were compared with those obtained from the FOM (full-order model) and experimental test, respectively. Finally, the influence of the hard coating and coating thickness on the mistuned blisk were investigated, in particular. View Full-Text
Keywords: mistuned blisk; hard coating; vibration reduction analysis; modified reduced-order model; frequency difference and its standard deviation; forced vibration response; coating thickness mistuned blisk; hard coating; vibration reduction analysis; modified reduced-order model; frequency difference and its standard deviation; forced vibration response; coating thickness
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MDPI and ACS Style

Gao, F.; Li, B.; Liu, X. Passive Vibration Reduction Analysis of the Mistuned Blisk Deposited Hard Coating Using Modified Reduced-Order Model. Coatings 2019, 9, 812.

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