全文除引言及结语外，共分为四章，具体结构如下：引言：视听资料的研究意义及特点。
Addition to the introduction and conclusion, is divided into four chapters, the specific structure is as follows: Forward: to introduce the audio-visual material of significance and characteristics.
本论文的具体结构如下：第一部分介绍本论文的相关研究背景，存在的问题及写作原因、目标。
The structure of this thesis is as follows: Part one mainly introduces the research background, existed question and the writing reason and goal.
本论文具体研究工作如下：研究了含孔柱壳结构中弹性波散射与动应力集中问题。
The main research contents in this dissertation are as follows: Elastic wave scattering and dynamic stress concentration in circular cylindrical shells with a hole are studied.
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