A nonlinear energy sink (NES) approach is proposed for whole-spacecraft vibration reduction. Frequency sweeping tests are conducted on a scaled whole-spacecraft structure without or with a NES attached. The experimental transmissibility results demonstrate the significant reduction of the whole-spacecraft structure vibration over a broad spectrum of excitation frequency. The NES attachment hardly changes the natural frequencies of the structure. A finite element model is developed, and the model is verified by the experimental results. A two degrees-of-freedom (DOF) equivalent model of the scaled whole-spacecraft is proposed with the two same natural frequencies as those obtained via the finite element model. The experiment, the finite element model, and the equivalent model predict the same trends that the NES vibration reduction performance becomes better for the increasing NES mass, the increasing NES viscous damping, and the decreasing nonlinear stiffness. The energy absorption measure and the energy transition measure calculated based on the equivalent model reveals that an appropriately designed NES can efficiently absorb and dissipate broadband-frequency energy via nonlinear beats, irreversible targeted energy transfer (TET), or both for different parameters.
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April 2017
Research-Article
Nonlinear Energy Sink for Whole-Spacecraft Vibration Reduction
Kai Yang,
Kai Yang
Shanghai Institute of Applied
Mathematics and Mechanics,
Shanghai University,
Shanghai 200072, China
Mathematics and Mechanics,
Shanghai University,
Shanghai 200072, China
Search for other works by this author on:
Ye-Wei Zhang,
Ye-Wei Zhang
Shanghai Institute of Applied
Mathematics and Mechanics,
Shanghai University,
Shanghai 200072, China;
Mathematics and Mechanics,
Shanghai University,
Shanghai 200072, China;
Faculty of Aerospace Engineering,
Shenyang Aerospace University,
Shenyang 110136, China
Shenyang Aerospace University,
Shenyang 110136, China
Search for other works by this author on:
Hu Ding,
Hu Ding
Shanghai Institute of Applied
Mathematics and Mechanics;
Mathematics and Mechanics;
Shanghai Key Laboratory of Mechanics in
Energy Engineering,
Shanghai University,
Shanghai 200072, China
Energy Engineering,
Shanghai University,
Shanghai 200072, China
Search for other works by this author on:
Tian-Zhi Yang,
Tian-Zhi Yang
Shanghai Institute of Applied
Mathematics and Mechanics,
Shanghai University,
Shanghai 200072, China;
Mathematics and Mechanics,
Shanghai University,
Shanghai 200072, China;
Faculty of Aerospace Engineering,
Shenyang Aerospace University,
Shenyang 110136, China
Shenyang Aerospace University,
Shenyang 110136, China
Search for other works by this author on:
Yang Li,
Yang Li
Faculty of Aerospace Engineering,
Shenyang Aerospace University,
Shenyang 110136, China
Shenyang Aerospace University,
Shenyang 110136, China
Search for other works by this author on:
Li-Qun Chen
Li-Qun Chen
Shanghai Institute of Applied
Mathematics and Mechanics;
Mathematics and Mechanics;
Shanghai Key Laboratory of Mechanics in
Energy Engineering,
Shanghai University,
Shanghai 200072, China;
Energy Engineering,
Shanghai University,
Shanghai 200072, China;
Department of Mechanics,
Shanghai University,
Shanghai 200444, China
Shanghai University,
Shanghai 200444, China
Search for other works by this author on:
Kai Yang
Shanghai Institute of Applied
Mathematics and Mechanics,
Shanghai University,
Shanghai 200072, China
Mathematics and Mechanics,
Shanghai University,
Shanghai 200072, China
Ye-Wei Zhang
Shanghai Institute of Applied
Mathematics and Mechanics,
Shanghai University,
Shanghai 200072, China;
Mathematics and Mechanics,
Shanghai University,
Shanghai 200072, China;
Faculty of Aerospace Engineering,
Shenyang Aerospace University,
Shenyang 110136, China
Shenyang Aerospace University,
Shenyang 110136, China
Hu Ding
Shanghai Institute of Applied
Mathematics and Mechanics;
Mathematics and Mechanics;
Shanghai Key Laboratory of Mechanics in
Energy Engineering,
Shanghai University,
Shanghai 200072, China
Energy Engineering,
Shanghai University,
Shanghai 200072, China
Tian-Zhi Yang
Shanghai Institute of Applied
Mathematics and Mechanics,
Shanghai University,
Shanghai 200072, China;
Mathematics and Mechanics,
Shanghai University,
Shanghai 200072, China;
Faculty of Aerospace Engineering,
Shenyang Aerospace University,
Shenyang 110136, China
Shenyang Aerospace University,
Shenyang 110136, China
Yang Li
Faculty of Aerospace Engineering,
Shenyang Aerospace University,
Shenyang 110136, China
Shenyang Aerospace University,
Shenyang 110136, China
Li-Qun Chen
Shanghai Institute of Applied
Mathematics and Mechanics;
Mathematics and Mechanics;
Shanghai Key Laboratory of Mechanics in
Energy Engineering,
Shanghai University,
Shanghai 200072, China;
Energy Engineering,
Shanghai University,
Shanghai 200072, China;
Department of Mechanics,
Shanghai University,
Shanghai 200444, China
Shanghai University,
Shanghai 200444, China
1Corresponding author.
Contributed by the Technical Committee on Vibration and Sound of ASME for publication in the JOURNAL OF VIBRATION AND ACOUSTICS. Manuscript received June 28, 2016; final manuscript received November 18, 2016; published online February 17, 2017. Assoc. Editor: Mohammed Daqaq.
J. Vib. Acoust. Apr 2017, 139(2): 021011 (19 pages)
Published Online: February 17, 2017
Article history
Received:
June 28, 2016
Revised:
November 18, 2016
Citation
Yang, K., Zhang, Y., Ding, H., Yang, T., Li, Y., and Chen, L. (February 17, 2017). "Nonlinear Energy Sink for Whole-Spacecraft Vibration Reduction." ASME. J. Vib. Acoust. April 2017; 139(2): 021011. https://doi.org/10.1115/1.4035377
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