Loss tangent bandwidths

Loss Tangent and Loos Modulus Temperature Bandwidths ... 

Basic aspects of the resonance technique may be illustrated by considering a linear visco-elastic medium between two parallel plates, one undergoing forced harmonic displacement, amplitude a (= cos cat), the other being fixed. As 0) is varied, resonances occur and a resonance bandwidth analysis yields the loss tangent, tan 5 [Whorlow, 1992 Ingard 1988]. 

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