【摘 要】
：
The vibration and sound transmission characteristics of periodically rib-stiffened double-leaf structures is of growing interest due to their wide range app
【机 构】
：
MOE Key Laboratory for Strength and Vibration,School of Aerospace,Xi'an Jiaotong University,Xi'an
【出 处】
：
The Third International Conference on Dynamics,Vibration and
论文部分内容阅读
The vibration and sound transmission characteristics of periodically rib-stiffened double-leaf structures is of growing interest due to their wide range applications in civil and transport engineering (e.g., as the cabin skin of aircrafts, marine ships and express trains)[1-17].At low frequencies, a rib-stiffened structure can be approximated as an orthotropic panel when the wavelength of the flexural wave in the panel is much greater than the separation distance of the stiffeners[3,4].At high frequencies, however, when the wavelength is comparable with the stiffener separation, the spatial periodicity, of the structure should be carefully taken account of in the theoretical analysis.
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