A New Method for Instantaneous Frequency Estimation of Run-up or Run-down Vibration Signal for Rotating Machinery

Abstract

Abstract: The vibration signal of rotational machine in the station of run up and run down in the high noise environment, the traditional method of peak detection, by using short-time Fourier transform(STFT), gives inaccurate estimation. A new STFT_Viterbi algorithm fit (STFT_VF) method is proposed that can estimate such instantaneous frequency of vibration signal of rotating machinery. Estimation of the instantaneous frequency, by using the STFT, is considered. And algorithm realization is performed recursively by using the Viterbi algorithm. However, the results through direct searching are often worse in precision, due to the interference of strong noise and adjacent components of signal. The STFT_VF method is used to solve the problem. The correctness of the method based on STFT_VF is validated through simulation and test.

Key words: Instantaneous frequency estimation, Rotating machinery, Short-time Fourier transform, STFT_VF, Viterbi algorithm

CLC Number:

TH115 TN911.6

ZHAO Xiaoping;ZHAO Xiuli;HOU Rongtao;ZHENG Yuhui;YANG Wenping. A New Method for Instantaneous Frequency Estimation of Run-up or Run-down Vibration Signal for Rotating Machinery[J]. , 2011, 47(7): 103-108.

Add to citation manager EndNote|Reference Manager|ProCite|BibTeX|RefWorks

URL: http://www.cjmenet.com.cn/EN/

http://www.cjmenet.com.cn/EN/Y2011/V47/I7/103

[1]	SHAO Haidong, XIAO Yiming, ZHONG Xiang, HAN Te. Model Calibration Method for Trustworthy Mechanical Fault Diagnosis [J]. Journal of Mechanical Engineering, 2025, 61(17): 114-123.
[2]	XIAO Yang, WANG Huaqing, LI Hua, WANG Qingfeng. Cross-domain Fault Diagnosis Method Based on Refined Composite Zoom Multi-scale Weighted Permutation Entropy [J]. Journal of Mechanical Engineering, 2025, 61(16): 28-39.
[3]	ZHANG Wendi, LI Hongguang, ZHOU Jiwen, WANG Jinhong, LI Zhenping. Research on Improved Vibration Measurement of Rotating Machinery Based on Image Phase and General Curvelet Transform [J]. Journal of Mechanical Engineering, 2024, 60(24): 35-44.
[4]	ZHANG Zongzhen, WANG Jinrui, HAN Baokun, BAO Huaiqian, LI Shunming. Early Stage Fault Diagnosis Method of Bearings Based on Nonlinear Sparse Blind Deconvolution [J]. Journal of Mechanical Engineering, 2023, 59(16): 157-166.
[5]	XIAO Yang, WANG Qingfeng, YANG Zhe, XU Wei, SHU Yue, CHEN Wenwu. Research on Incipient Warning and Diagnosis Method of Sudden Unbalance Fault for Rotating Machinery [J]. Journal of Mechanical Engineering, 2023, 59(11): 308-318.
[6]	ZHOU Jian, ZHENG Lian-yu, WANG Yi-wei, WANG Yi-chuan. Automatic Model Creation Method of Hierarchical Parallel Network Model for Transfer Diagnosis of Rotating Machinery [J]. Journal of Mechanical Engineering, 2022, 58(22): 115-128.
[7]	LI Feng, XIANG Wang, CHEN Yong, TANG Baoping, WANG Jiaxu. State Degradation Trend Prediction Based on Double Hidden Layer Quantum Circuit Recurrent Unit Neural Network [J]. Journal of Mechanical Engineering, 2019, 55(6): 83-92.
[8]	ZHU Maotao, WU Xinjia, ZHENG Guofeng, LI Liping, HAN Pengfei, SHANGGUAN Wenbin. Load Signal Edition Method Based on the Short-time Fourier Transform to Durability Test of Vehicle Component [J]. Journal of Mechanical Engineering, 2019, 55(4): 126-134.
[9]	YU Kun, LUO Zhitao, LI Hongfei, MA Hui. General Parameterized Synchrosqueezing Transform and Its Application in Rotating Machinery Vibration Signal [J]. Journal of Mechanical Engineering, 2019, 55(11): 149-159.
[10]	LI Feng, TANG Baoping, WANG Jiaxu, LIN Jianhui. Fault Identification Method Based on Graph-implanted Probability-based Semi-supervised Discriminant Analysis [J]. Journal of Mechanical Engineering, 2017, 53(9): 92-100.
[11]	HE Liu, LIN Jianhui, DING Jianming, LIU Xinchang. Empirical Mode Decomposition Envelope Technique and Mode Mixing Problem in Amplitude Modulation-frequency Modulation Signals [J]. Journal of Mechanical Engineering, 2017, 53(2): 1-10.
[12]	ZHAO Ming, LIN Jing, LIAO Yuhe, CAO Junyi. Instantaneous Rotating Speed Estimation Using Adaptive Short-time Chirp-Fourier Transform and Its Applications [J]. Journal of Mechanical Engineering, 2015, 51(14): 8-14.
[13]	PAN Xin, WU Haiqi, GAO Jinji. Rotating Machinery Targeting Self-recovery Regulation System for Imbalance Vibration Fault with Liquid-transfer Active Balancing Device [J]. Journal of Mechanical Engineering, 2015, 51(1): 146-152.
[14]	MENG Zong;WANG Yachao. Rotating Machinery Fault Diagnosis Method Based on the Differential Local Mean Decomposition [J]. , 2014, 50(11): 101-107.
[15]	LI Hongkun;LIAN Xiaoting;ZHOU Shuai. Application on Weak Information Classification by Using Wavelet Scalogram Synchronous Averaging [J]. , 2013, 49(5): 32-38.

A New Method for Instantaneous Frequency Estimation of Run-up or Run-down Vibration Signal for Rotating Machinery

PDF

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments