Higher order spectral analysis of acoustical signals of welding process
Article Sidebar
Main Article Content
Abstract
The article presents results of research on the application of third-order spectrum to analysis of the acoustic signal of welding proces. Higher spectrum in contrast to the commonly used power spectrum retain dependency information phase and allow you to fully characterize the instability of the welding process which is confirmed by studies carried out.
in polish
Analiza widmowa wyższych rzędów akustycznych sygnałów procesu spawania
W artykule zaprezentowano wyniki badań nad zastosowaniem widma trzeciego rzędu do analizy sygnałów akustycznych generowanych w trakcie spawania. Widma wyższych rzędów w przeciwieństwie do powszechnie stosowanego widma mocy sygnału zachowują informację o zależnościach fazowych i pozwalają w pełni scharakteryzować niestabilności procesu spawania, co potwierdzają przeprowadzone badania.
Downloads
Article Details
Creative Commons CC BY 4.0 https://creativecommons.org/licenses/by/4.0/
Welding Technology Review (WTR) articles are published open access under a CC BY licence (Creative Commons Attribution 4.0 International licence). The CC BY licence is the most open licence available and considered the industry 'gold standard' for open access; it is also preferred by many funders. This licence allows readers to copy and redistribute the material in any medium or format, and to alter, transform, or build upon the material, including for commercial use, providing the original author is credited.
References
Cudina M., Prezelj J., Polajnar I.: Use of audible sound for on-line monitoring of gas metal arc welding process, Metalurgija 47, 2008, pp. 81-85.
Grad L., Kralj V.: On line monitoring of arc welding process using acoustic signals, In: Proc. 13th Conf. BIAM96, Zagreb, 1996, pp. i17-i20.
Grad L., Grum J., Polajnar I., Slabe J.M.: Feasibility study of acoustic signals for on-line monitoring in short circuit gas metal arc welding. Int. J. Mach. Tools Manuf. 44, 2004, pp. 555-561.
Fan D., Shi Y., Ushio M.: Investigation of CO2 welding arc sound. Correlation of welding arc sound signal with welding spatter, Trans. JWRI 30, 2001, pp. 29-33.
Jiluan P.: Arc Welding Control, Woodhead Publishing Ltd., 2003.
Luksa K.: Correspondence between sound emissions generated in the GMA welding process and signals registered in the arc circuit, Weld. Int. 17, 2003, pp. 438-441.
Luo H., Zenga H., Hub L., Hub X., Zhoub Z.: Application of artificial neutral network in laser welding defect diagnosis. J. Mater. Proc. Tech. 170, 2005, pp. 403-411.
Mendel J.M.: Tutorial on higher-order statistics (spectra) in signal processing and system theory: Theoretical results and some applications, Proc. IEEE, Vol. 79, 1991, pp. 278-305.
Nikias C.L., Petropulu A.P.: Higher-Order Spectra Analysis. Englewood Clifs NJ, Prentice-Hall, 1993.