集中载荷作用下饱和多孔二维梁的动力响应

Dynamic response of two dimensional fluid-saturated porous beam under a concentrated load

基于饱和多孔介质理论模型,考虑了固体颗粒和流体的可压缩性以及孔隙流体的粘滞性,分析了在集中荷载作用下和多孔二维简支梁的动力响应。作为数值算例,分析了饱和多孔二维梁在集中简谐荷载作用下的动力响应特性,重点分析了荷载频率对饱和多孔二维梁的固体骨架应力和固相位移等物理量的影响。

Based on the Biot theory of saturated porous media, considering the solid particles and fluid compressibility and pore fluid viscosity, a concentrated load at the dynamic response of the two dimensional simply-supported fluid-saturated porous beam under is studied.As a numerical example,analysisied the dynamic response characteristic under the concentrated load, especially analysised the solid skeleton stress and solid displacement of the two-dimensional fluid-saturated porous beam were affected by the loading frequency.