비정상 압력변동에 의한 Compliant Coating 의 응답특성

Abstract

The amplitude and phase lag of surface deformation were determined for a compliant coating under the action of turbulent pressure fluctuations. The amplitude and duration of coherent wave train of pressure fluctuations were investigated using digital filtration. The transient response was calculated for stabilization of forced oscillations of the coating in approximation of local deformation. It is shown that a compliant coating interacts not with the whole spectrum of pressure fluctuations, but only with a frequency range near the first resonance.