The Effect of Wall Elasticity on the Properties of a Helmholtz Resonator
نویسنده
چکیده
The effect of compliant walls on the properties of a Helmholtz resonator is examined. The effective stiffness of the resonator is decreased by the wall compliance, while the effective mass is unchanged to leading order. The radiation resistance is also decreased ue to a cancellation between the radiation from the cavity opening and the radiation from the cavity walls. This leads to a reduction i the cross ection atresonance by the factor [Z,/(Z, + Z•) ] 4, where Z, is the wall impedance and Z• is the total fluid loading on the breathing mode of the cavity.
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