A Portable Digital Torsional Vibration Analysis System and its Signal Processing

Abstract:

Shaft torsional vibration is critical to rotating machinery as internal combustion engines because it may cause disasters if we ignore its significance. This paper introduced a portable digital system we developed to derive torsional vibration signal by a Hall Effect transducer. By analyzing the signal in frequency domain, we furthered the study on the influence of torsional vibration in each order under various rotation rates to determine the torsional resonant frequency. Moreover, a comparison between several signal processing methods in frequency domain was investigated and an optimum method for the spectrum correction obtained subsequently. Experiments conducted by this portable digital system showed its good performance in shaft torsional vibration measurements, analysis and trouble diagnosis.

• Periodical: Advanced Materials Research (Volumes 490-495)
• Pages: 1903-1907
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.490-495.1903
• Online since: March 2012
• Authors: Qi Lin, Shui Liang Yu
• Keywords: Harmonic Order Analysis, Microchip, Spectrum Correction, Torsional Vibration

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