This paper discusses the optimization problem of 3-D elastic contact objects in theory using BEM, and analyze the real contact problem of helical gears.

本文以边界元法作为应力分析工具，对三维弹性接触问题的形状优化问题进行了理论上的探讨，并对斜齿轮接触问题进行了实际分析。

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Firstly, a new mesh generation method for 3-d hydro-elastic analysis is proposed with the combination of 2-d Timoshenko beam theory and 3-d wetted surface mesh generation method.

首先，将二维梁振动理论与三维船体湿表面网格划分方法相结合，提出了一种适用于三维水弹性分析的浮体湿表面网格划分方法。

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