This study examined the characteristics of sidebands in modulation spectroscopy on a high-frequency wave interacting with a defect that imposes a simple switching type disruption caused by a low-frequency, high-amplitude vibration. A simple close form of sideband amplitude is obtained by convolution of a high-frequency probing wave with harmonics of a pulse wave. This study also proposes an experimental procedure based on sideband phases for determining the crack parameters.
Modulation Spectroscopy of Acoustic Waves in Solids Containing Contact-Type Cracks
Contributed by the Noise Control and Acoustics Division of ASME for publication in the JOURNAL OF VIBRATION AND ACOUSTICS. Manuscript received November 8, 2011; final manuscript received May 9, 2013; published online August 6, 2013. Assoc. Editor: Liang-Wu Cai.
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Tszeng, T. C. (August 6, 2013). "Modulation Spectroscopy of Acoustic Waves in Solids Containing Contact-Type Cracks." ASME. J. Vib. Acoust. December 2013; 135(6): 064504. https://doi.org/10.1115/1.4025017
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