TY - GEN
T1 - Nonlinear Acoustic Oscillation Analysis Method Based on Improved Variational Mode Decomposition
AU - Jin, Bingning
AU - Gan, Lin
AU - Bai, Yanjun
AU - Zhang, Xiangyu
AU - Wei, Shaojuan
AU - Wang, Zhuopu
AU - Liu, Peijin
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - The problem of nonlinear combustion instability seriously affected the solid rocket motors and has been widely concerned by researchers. Experimental studies have shown that there is a clear multi-order modes coexistence phenomenon in nonlinear combustion unstable pressure oscillation, and there is energy transfer between modes. Therefore, in order to study the evolution of energy transfer between modes in nonlinear combustion instability, modes extraction of characteristic signal data is required. In this paper, based on VMD decomposition method, considering that artificially set parameters required by VMD decomposition have great influence on the results, a mode decomposition method SPSO-VMD is proposed for nonlinear unstable characteristic signals of SRM, and the typical nonlinear unstable signal is extracted and analyzed. The results show that the proposed method can accurately obtain the frequencies and amplitudes of various modes in nonlinear oscillating signals.
AB - The problem of nonlinear combustion instability seriously affected the solid rocket motors and has been widely concerned by researchers. Experimental studies have shown that there is a clear multi-order modes coexistence phenomenon in nonlinear combustion unstable pressure oscillation, and there is energy transfer between modes. Therefore, in order to study the evolution of energy transfer between modes in nonlinear combustion instability, modes extraction of characteristic signal data is required. In this paper, based on VMD decomposition method, considering that artificially set parameters required by VMD decomposition have great influence on the results, a mode decomposition method SPSO-VMD is proposed for nonlinear unstable characteristic signals of SRM, and the typical nonlinear unstable signal is extracted and analyzed. The results show that the proposed method can accurately obtain the frequencies and amplitudes of various modes in nonlinear oscillating signals.
KW - acoustic modes
KW - acoustic oscillation signal
KW - amplitude
KW - frequency
KW - nonlinear combustion instability
KW - SPSO-VMD
UR - http://www.scopus.com/inward/record.url?scp=85137261815&partnerID=8YFLogxK
U2 - 10.1109/ICMAE56000.2022.9852898
DO - 10.1109/ICMAE56000.2022.9852898
M3 - 会议稿件
AN - SCOPUS:85137261815
T3 - 2022 13th International Conference on Mechanical and Aerospace Engineering, ICMAE 2022
SP - 408
EP - 413
BT - 2022 13th International Conference on Mechanical and Aerospace Engineering, ICMAE 2022
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 13th International Conference on Mechanical and Aerospace Engineering, ICMAE 2022
Y2 - 20 July 2022 through 22 July 2022
ER -