As a new approach to passive sound control in low-frequency domain, the targeted energy transfer (TET) phenomenon has been investigated inside a three-dimensional (3D) acoustic cavity by considering a two degrees-of-freedom (DOF) system with an acoustic mode and a membrane nonlinear energy sink (NES). The beginning of TET phenomenon of the 2DOF system and the desired working zone for the membrane NES have been defined. In order to enhance the robustness and the effective TET range in acoustic cavities, a 3DOF system with two membranes and one acoustic mode is studied in this paper. We consider two different membranes and two almost identical membranes to analyze the TET phenomenon, respectively. The desired working zone which was obtained by the 2DOF system is applied to analyze the 3DOF system. We observe that two membranes can enlarge the desired working zone.
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June 2016
Research-Article
Study of Targeted Energy Transfer Inside Three-Dimensional Acoustic Cavity by Two Nonlinear Membrane Absorbers and an Acoustic Mode
Jianwang Shao,
Jianwang Shao
Institute for Advanced Study,
Tongji University,
Shanghai 201804, China
e-mail: shaojianwang@tongji.edu.cn
Tongji University,
Shanghai 201804, China
e-mail: shaojianwang@tongji.edu.cn
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Bruno Cochelin
Bruno Cochelin
Professor
Laboratory of Mechanics and Acoustics,
Ecole Centrale Marseille,
Marseille 13451, France
e-mail: bruno.cochelin@centrale-marseille.fr
Laboratory of Mechanics and Acoustics,
Ecole Centrale Marseille,
Marseille 13451, France
e-mail: bruno.cochelin@centrale-marseille.fr
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Xian Wu
Jianwang Shao
Institute for Advanced Study,
Tongji University,
Shanghai 201804, China
e-mail: shaojianwang@tongji.edu.cn
Tongji University,
Shanghai 201804, China
e-mail: shaojianwang@tongji.edu.cn
Bruno Cochelin
Professor
Laboratory of Mechanics and Acoustics,
Ecole Centrale Marseille,
Marseille 13451, France
e-mail: bruno.cochelin@centrale-marseille.fr
Laboratory of Mechanics and Acoustics,
Ecole Centrale Marseille,
Marseille 13451, France
e-mail: bruno.cochelin@centrale-marseille.fr
1Corresponding author.
Contributed by the Noise Control and Acoustics Division of ASME for publication in the JOURNAL OF VIBRATION AND ACOUSTICS. Manuscript received September 15, 2015; final manuscript received February 21, 2016; published online April 15, 2016. Assoc. Editor: Sheryl M. Grace.
J. Vib. Acoust. Jun 2016, 138(3): 031017 (9 pages)
Published Online: April 15, 2016
Article history
Received:
September 15, 2015
Revised:
February 21, 2016
Citation
Wu, X., Shao, J., and Cochelin, B. (April 15, 2016). "Study of Targeted Energy Transfer Inside Three-Dimensional Acoustic Cavity by Two Nonlinear Membrane Absorbers and an Acoustic Mode." ASME. J. Vib. Acoust. June 2016; 138(3): 031017. https://doi.org/10.1115/1.4033057
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