Abstract
This paper describes an experimental investigation of stochastic resonance in a bistable, composite beam excited by colored noise. Experimental results for average up-crossing period, spectral power amplification (SPA), and signal-to-noise ratio (SNR) are compared with analytical methods for underdamped systems. These analytical methods include expressions developed from Kramers, Melnikov, and two-state theory. The effect of a modal mass on the analytical expressions is explored. Finally, an alternative approach for calculating the effect of a colored noise spectrum on the SPA and SNR of underdamped systems is proposed.
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