2019
DOI: 10.1115/1.4045078
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Generalized SAFE Diagram for Mistuned Bladed Disks

Abstract: The Singh's advanced frequency evaluation (SAFE) diagram is a design tool commonly used to find and thus prevent bladed disk resonances, allowing those modal combinations with no match in terms of angular harmonic shape to be neglected. In principle, the SAFE diagram is based on the assumption that the disk structure is perfectly cyclic; hence, any degree of mistuning would prevent its validity. However, each natural mode of a mistuned bladed disk can be expressed as a superimposition of angular harmonic compo… Show more

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Cited by 4 publications
(1 citation statement)
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“…This tool allows one to find the shape matching between the load harmonics and the modes and finally try to avoid the resonance matches [12]. This diagram was recently extended to the actual dynamic behavior of the blisks, by considering any possible mistuning, as proposed by Neri et al [13]. However, a tailored experimental investigation is required to find the angular harmonic content of the bladed disks [14,15].…”
Section: Introductionmentioning
confidence: 99%
“…This tool allows one to find the shape matching between the load harmonics and the modes and finally try to avoid the resonance matches [12]. This diagram was recently extended to the actual dynamic behavior of the blisks, by considering any possible mistuning, as proposed by Neri et al [13]. However, a tailored experimental investigation is required to find the angular harmonic content of the bladed disks [14,15].…”
Section: Introductionmentioning
confidence: 99%