It is shown that the damping value established from three parameter model is smaller than that of two parameter model or elastic semi-infinitebody theory.
由该模型的分析结果表明，其阻尼值比之按两参数模型以及按弹性半空间体的理论模型求得的值要小得多。
2
The relations between the displacements and the stresses on the surface of semi-infinitebody are obtained by introducing the infinite boundary conditions.
引入了半无限体的无穷边界条件，推导出半无限层表面的位移与应力关系式。
3
The paper evaluates the limitations that semielliptical surface crack in a shaft is simplified to a unilateral crack in a finite boundary plane and a cross straight line crack in a semiinfinitebody.