Bladed Disk Vibration Dynamics
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Abstract
Abstract
To ensure the working performance of mistuned blisks, a hybrid vibration reduction strategy using the material damping and intentional mistuning capacities induced by the hard coating was proposed here. For solving vibration characteristics of mistuned blisks deposited hard coating efficiently, a novel reduced-order model was established using the improved component modeling method with dual reduction of degrees of freedoms (DOFs) firstly, and then validated by comparing the simulation results from the testing. Next, by the material damping capacity of the uniform-thickness hard coating, the passive vibration reduction strategy for mistuned blisks was investigated, and the specific influence of hard coating on vibration characteristics of mistuned blisks was discussed for the selection of intentional mistuning pattern. Finally, the small intentional stiffness and damping mistuning capacities were constructed by various coating thicknesses of different sectors, and then the hybrid vibration reduction analysis for mistuned blisks, which utilizes the material damping capacity and the small intentional mistuning induced by hard coating simultaneously, was further investigated for strategy validation.
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@article{Gao2026Hybrid,
title = {A Hybrid Vibration Reduction Strategy for Mistuned Blisks Using Intentional Mistuning of Hard-Coating Damping},
author = {Feng Gao and Jingjun Li},
journal = {The International Journal of Acoustics and Vibration},
year = {2026},
doi = {10.20855/ijav.2026.31.22259},
url = {https://doi.org/10.20855/ijav.2026.31.22259}
}FAQ
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