조화분포하중을 받는 원환보의 음향방사 = Sound radiation of curved beam under the action of harmonic line forces

다국어 초록 (Multilingual Abstract)

The problem of sound radiation from curved beam under the action of harmonic line forces is studied. The reaction due to fluid loading on the vibratory response of the curved beam is taken into account. The curved beam is assumed to occupy the plane y=0. The curved beam material and the elastic foundation are assumed to be lossless including a tension force(T), damping coefficient(C) and stiffness of foun- dation(k_s) will be employed The non-dimensional sound power is derived through intergration of the surface intensity distribution over the entire curved beam. The expression for sound power is integrated numerically and the results are examined as a function of wavenumber ratio(γ) and stiffness factor(Ψ).