摘要
推导了流体—固体无限介质斯通利 (Stoneley)波的特征方程及位移计算公式 ,并利用这一特征方程分析研究了流体—固体介质中斯通利波特性 .两半无限流体—固体介质中斯通利波波速度是非频散的 ,波速比 c/ VS比匀质半空间中瑞利波波速度小 ,且 c/ VS受固体泊松比μ影响较小 ,一般情况模量比q对 c/ VS影响也很小 .斯通利波在流体和固体交界处位移最大 ,在固体介质中斯通利波有效传播深度为1 .5倍波长 。
The dispersion secular equation and displacement equation of Stoneley waves in infinite\|solid media are obtained in this paper. The characteristics of Stoneley waves are discussed in this paper by using the secular equation. Stoneley waves are not dispersive in two infinite fluid-solid media. Wave velocity ratio r=c/V S of Stoneley wave is bigger than velocity ratio of Rayleigh wave in solid and c/V S is influenced little by bosson ratio μ and module ratio q=λ 1/G. The displacement of the Stonelay wave is biggest in the boundary line between fluid and solid.
基金
国家自然科学基金资助项目!(5980 80 1 1 )
