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近年来,随着电子计算机日益广泛地应用于各生产技术和科学研究部门,对结构的分析方法亦提出了新的要求。即寻找一种适应于电子计算机特点的计算方法。数值运算量可以多一些,但规律性要强,以便于编制计算程序。有限单元法就是这样一种结构分析方法。目前有限单元法在航空、土建工程方面,已获得了广泛应用和迅速发展。本文简单地介绍有限单元法的基本原理和方法,以便推广运用到起重机结构的设计工作中去。
In recent years, with the increasing use of electronic computers in various production technologies and scientific research departments, new requirements have also been put forward for structural analysis methods. That is to find a computing method adapted to the characteristics of the computer. The number of numerical operations can be more, but the regularity is stronger to facilitate the preparation of the calculation program. Finite element method is such a structural analysis method. At present, the finite element method has been widely used and rapidly developed in aviation and civil engineering. This paper briefly introduces the basic principles and methods of the finite element method to facilitate its application to crane design work.