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Title: Beating effect between a thermoacoustic source and its mechanical partner
Authors: Wang, Kai
Sun, Daming
Zhang, Jie
Zhang, Ning
Luo, Kai
Qiu, Limin
Keywords: Applied Physics
Issue Date: 2015
Source: Wang, K., Sun, D., Zhang, J., Zhang, N., Luo, K., & Qiu, L. (2015). Beating effect between a thermoacoustic source and its mechanical partner. Journal of Applied Physics, 118(24), 244907-.
Series/Report no.: Journal of Applied Physics
Abstract: Beating effects between a thermoacoustic source and its mechanical partner-a piston-spring oscillator are numerically predicted and experimentally observed in the free-decay process. Through analyzing the indicator diagram, periodic energy transfer characteristics between a thermoacoustic source and its mechanical partner during the beating oscillation are revealed and analyzed. The oscillation frequency is found to split into two modes intrinsically even when the resonance frequencies are initially tuned to be the same. The patterns and frequencies of the beating oscillations are sensitively affected by the characteristics of acoustic sources. The study sheds light on the underlying mechanisms of beating oscillations occurred in thermoacoustic systems with multiple resonant sub-units.
ISSN: 0021-8979
DOI: 10.1063/1.4939291
Research Centres: Energy Research Institute @ NTU (ERI@N) 
Rights: © 2015 AIP Publishing LLC. This paper was published in Journal of Applied Physics and is made available as an electronic reprint (preprint) with permission of AIP Publishing. The published version is available at: []. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:ERI@N Journal Articles

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