Abstract
Because of low attenuation speed of harmonic wavelet in time domain, we carry on the smooth processing in the frequency domain to get better quality of harmonic wavelet. With improved transaction of harmonic wavelet, this paper analyzes in subdivided frequency domain the vibration signal, which is distilled by the track of axes, eliminates most useless signals by calculating time domain and gets high definition graph of vibration signal in time domain at last. The fine track of axes, especially this of inferior frequency signal, well serves the analysis of rotor malfunction. The result shows greater value in practice.
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References
Qian, J., & Di, Y. (2001). Dynamic behaviour of a multi-rotor system with pedestal looseness. Journal of Vibration and Shock, 20(4), 89–92, 101.
Wan, F.-Y., Xu, Q.-Y., & Li, S.-T. (2004). Application of harmonic wavelet transform to detecting multifaults of rotor bearing systems. Engineering Mechanics, 21(1), 102–106.
Li, S. M. (2004). Harmonic wavelet packets method and used on accurate obtaining the orbit of rotor sub-frequency signal. Chinese Journal of Mechanical Engineering, 40(9), 133–137.
Li, S. M., & Gao, D.-P. (2004). Identification of nonlinear vibration characteristics of cracked rotor using harmonic wavelet analysis and fractal theory. Journal of Aerospace Power, 19(5), 581–586.
Li, S. M., Lu, G. Z., & Xu, Q. Y. (2001). On obtaining accurate rotor sub-frequency signal with harmonic wavelet. Journal of Northwestern Polytechnical University, 19(2), 220–224.
Wan, F., Xu, Q., & Li, S. (2004). Vibration analysis of cracked rotor sliding bearing system with rotor-stator rubbing by harmonic wavelet transform. Journal of Sound and Vibration, 271(3–4), 507–518.
Chancey, V. C., Flowers, G. T., & Howard, C. L. (2003). A harmonic wavelets approach for extracting transient patterns from measured rotor vibration data. Journal of Engineering for Gas Turbines and Power, 125(1), 81–89.
Adewusi, S. A., & Al-Bedoor, B. O. (2001). Wavelet analysis of vibration signals of an overhang rotor with a propagating transverse crack. Journal of Sound and Vibration, 246(5), 777–793.
Zhao, Y., Zhang, Y., Xiao, Z., & Xu, Q. (2002). Identification of high-order critical speed of rotor bearing system. Chinese Journal of Mechanical Engineering, 38(7), 107–110.
Ye, Z., Wu, B., & Sadeghian, A. (2003). Current signature analysis of induction motor mechanical faults by wavelet packet decomposition. IEEE Transactions on Industrial Electronics, 50(6), 1217–1228.
Ren, Z., Huang, Q.-G., & Huang, W.-Y. (2000). Two wavelet transform methods and application of fault signal analysis on generator. Proceedings of the Chinese Society of Electrical Engineering, 20(10), 59–63.
Peng, Z. K., Chu, F. L., & Tse, P. W. (2005). Detection of the rubbing-caused impacts for rotor-stator fault diagnosis using reassigned scalogram. Mechanical Systems and Signal Processing, 19(2), 391–409.
Sekhar, A. S. (2004). Detection and monitoring of crack in a coast-down rotor supported on fluid film bearings. Tribology International, 37(3), 279–287.
Samuel, P. D., Pines, D. J., & Lewicki, D. G. (2000). Comparison of stationary and non-stationary metrics for detecting faults in helicopter gearboxes. Journal of the American Helicopter Society, 45(2), 125–136.
Zhang, Q., & Xu, D. (2004). Comparison among some digital signal processing methods for no-coupling series-excited motor testing. Conference Proceedings—IPEMC 2004: 4th International Power Electronics and Motion Control Conference (vol. 3, pp. 1436–1441).
Newland, D. E. (1993). Random vibrations, spectral and wavelet analysis (3rd ed.). New York: Longman.
Newland, D. E. (1994). Wavelet analysis of vibration. Part 1: Thoery. Transactions on ASME Journal of Vibration and Acustics, 116, 409–416.
Newland, D. E. (1994). Wavelet analysis of vibration. Part 2: Wavelet maps. Transactions on ASME Journal of Vibration and Acustics, 116, 417–425.
Newland, D. E. (1993). Harmonic wavelet analysis. Proceedings of the Royal Society of London. Series A, 443, 203–225.
Newland, D. E. (1999). Ridge and phase identification in the frequency analysis of transient signals by harmonic wavelets. ASME Journal of Vibration and Acoustics, 121(1), 149–155.
Newland, D. E. (1994). Harmonic and musical wavelet. Proceedings of the Royal Society of London. Series A, 444, 605–620.
Yucheng, Z., et al. (2000). Application of harmonic wavelet to numerical filter and its efficiency analysis. Chinese Journal of Mechanical Engineering, 10, 9–12.
Xiao, Z. (2001). The application of harmonic wavelet in extracting dynamic parameter of rotor system. Chinese Journal of Applied Mechanics, 18(4), 60–64.
Li, G. (2001). Application of improved harmonic wavelets on time-frequency analysis of vibration signal. Journal of Vibration Engineering, 14(4), 388–391.
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This work was partly supported by the National Natural Science Foundation of China under Grant No. 50675206 and was supported by Zhejiang Province Natural Sciences Fund Project under Grant No. Y106847.
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Fu, X. Research on vibration of rotor by application of the improved harmonic wavelet. Analog Integr Circ Sig Process 59, 201–205 (2009). https://doi.org/10.1007/s10470-008-9247-9
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DOI: https://doi.org/10.1007/s10470-008-9247-9