期刊
JOURNAL OF VIBRATION AND ACOUSTICS-TRANSACTIONS OF THE ASME
卷 134, 期 6, 页码 -出版社
ASME
DOI: 10.1115/1.4007564
关键词
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资金
- National Science Foundation (NSF) [0408866, 1100260]
- Div Of Civil, Mechanical, & Manufact Inn
- Directorate For Engineering [0408866, 1100260] Funding Source: National Science Foundation
This paper considers the dynamic response and order-tuning of vibration absorbers fitted to a rotating flexible structure under traveling wave (TW) engine order excitation. Of specific interest is the extension of previous results on the so-called no-resonance zone, that is, a region in linear tuning parameter space in which the coupled structure/absorber system does not experience resonance over all rotation speeds. The no-resonance feature was shown to exist for cyclic rotating structures with one structural and one absorber degree of freedom (DOF) per sector. This work uses a higher-fidelity structural model to investigate the effects of higher modes on the cyclically-coupled system. It is shown that the no-resonance zone is replaced by a resonance-suppression zone in which one structural mode is suppressed, but higher-order resonances still exist with the addition of the absorbers. The results are general in the sense that one vibration mode can be eliminated using a set of identically-tuned absorbers on a rotating structure with arbitrarily many DOFs per sector. [DOI: 10.1115/1.4007564]
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