海洋工程线状结构力学研究进展

Recent Progresses in the Stress Analysis of Line Structures in ocean Engineering

线状结构(又称为挠性结构或柔性链状结构)是一类极富有特色的结构,在海洋工程中得到广泛应用。其几何特征是结构的横向尺度远小于其纵向尺度,因而其外观呈细长线状;其力学特征是富有挠性,以承受轴向张力为主,不能承受并传递轴向压力。这类结构又可按柔性程度不同而分为两类,即完全柔性的索状结构和不完全柔性的细长管道结构。索状结构不能承受任何剪切刀、轴向压力及弯矩。因此。

The line structure is one of the common engineering structures with wide applications. It arouses much interest to the structural engineers due to its peculiar geometrical form and mechanical characteristics. The line structural mechanics has peen developed to a peculiar branch of structrual mechanics. The recent progress in the stress analysis of line structures are discussed in this paper. Emphasis is placed on the determination of external loading, set-up of governing equations and solutions of equilibrium configurations (analytic and numerical methods). Line structures with perfect flexibility and semi-flexibility are dealt with.