Shock response analysis of the unlocking device of satellite and rocket based on EEMD

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Journal of Vibration and Shock ›› 2018, Vol. 37 ›› Issue (1) : 47-52.

WANG Guo-yuan 1 XU Yang 1 HU Xiao-nan 2 SHENG Xiao-wei 1 JIANG Qing-fei1

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Abstract

Based on the Ensemble Empirical Mode Decomposition (EEMD), a new method about the shock response analysis of an unlocking device of satellite and rocket was proposed. The shock response signals of the unlocking device of satellite and rocket were resolved into different Intrinsic Mode Functions（IMF）by EEMD. The analyses show that the IMFs during the first two phases are high-frequency vibrations caused by impacting, while the phases after IMF3 are different modes of vibration and local vibrations. The correctness of the analyses were verified by the experimental modal analysis.

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unlocking device of satellite and rocket / Ensemble Empirical Mode Decomposition (EEMD) / Intrinsic Mode Functions（IMF） / shock response

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WANG Guo-yuan 1 XU Yang 1 HU Xiao-nan 2 SHENG Xiao-wei 1 JIANG Qing-fei1. Shock response analysis of the unlocking device of satellite and rocket based on EEMD[J]. Journal of Vibration and Shock, 2018, 37(1): 47-52

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