Investigation of Low-Frequency Sound Radiation Characteristics and Active Control Mechanism of a Finite Cylindrical Shell

<div>Sound power of the <i>a</i>-modes and <i>s</i>-modes at nonresonance frequency (500 Hz). (a) Sound power of the <i>a</i>-modes. (b) Sound power of the <i>s</i>-modes.</div>

Shock and Vibration

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Figure 9

Figure 9: Investigation of Low-Frequency Sound Radiation Characteristics and Active Control Mechanism of a Finite Cylindrical Shell 