Abstract: The displacement vectors caused by the tide-generating force are different for different points inside the earth, hence tidal strain and stress fields are formed inside the earth. In the study of the relations between the earthquake and the earth tide, it is necessary to know the time and space distributions of the tidal stress field inside the earth. Homogeneous spherical elastic earth model is the first approximation of the real earth in the approach to study the earth tide, this paper gives a numerical method to calculate the stress field for such an earth model.

Key words: tide-generating force, earth model, tidal stress field

摘要： 地球内部各个质点在月亮和太阳的起潮力作用下产生的位移矢量不同，在地球内部形成固体潮应变场和应力场。在研究固体潮与地震的关系时，需要知道固体潮应力场的时空分布。球状弹性均匀地球模型是地球的一级近似，本文给出计算该地球模型固体潮应力场的计算方法。

关键词: 起潮力, 地球模型, 固体潮应力场