2019
DOI: 10.1155/2019/3237960
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Research on Blade‐Casing Rub‐Impact Mechanism by Experiment and Simulation in Aeroengines

Abstract: Aeroengines pursue high performance, and compressing blade-casing clearance has become one of the main ways to improve turbomachinery efficiency. Rub-impact faults occur frequently with clearance decreasing. A high-speed rotor-support-casing test rig was set up, and the mechanism tests of light and heavy rub-impact were carried out. A finite element model of the test rig was established, and the calculation results were in good agreement with the experimental results under both kinds of rub-impact conditions. … Show more

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Cited by 11 publications
(2 citation statements)
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“…In this study, only the vibrational mode of the blade is investigated. As indicated in the previous study [30], the low frequency resonances may correlate to the unbalance of the rotor shaft. This is not the interests for this study.…”
Section: Evaluation Of the Vibration Energysupporting
confidence: 58%
“…In this study, only the vibrational mode of the blade is investigated. As indicated in the previous study [30], the low frequency resonances may correlate to the unbalance of the rotor shaft. This is not the interests for this study.…”
Section: Evaluation Of the Vibration Energysupporting
confidence: 58%
“…This model was designed to assess different rubbing conditions, and its generated responses were validated in an experimental rig. Hong et al [11] developed a FE model of an experimental rig of an aeroengine. Structural effects in the blades, such as deformation and stress, were studied by means of the numerical method.…”
Section: Introductionmentioning
confidence: 99%