拟动力试验中显式数值积分方法改进研究的综述

Review of studies on improvement of explicit numerical integration methods for pseudo-dynamic testing

传统拟动力试验数值积分方法主要分为显式和隐式两种算法。以往的研究表明,显式算法较隐式算法更适合于拟动力试验。然而,显式算法本身有着许多固有缺陷,而且现代教学和科研对拟动力试验结果精度越来越高的要求也促使算法做出必要的改进。详细介绍了国内外学者对显式算法改进的研究进展和现状,并通过对显式算法几个主要改进方面的探讨和总结,指出了其中需要解决的几个问题,依此提出了今后合理的研究目标和方向。

Numerical integration methods of traditional pseudo-dynamic test are mainly divided into two kinds of explicit and implicit algorithms.Previous studies have shown that explicit algorithm is more suitable for pseudo-dynamic testing than the implicit method.However,explicit algorithm itself has many inherent defects.Also,it is necessary to make improvements on the algorithm since the requirements of modern teaching and research on the precision of pseudo dynamic tests results are more and more higher.Details of the progress and current status of the research by domestic and foreign scholars on explicit algorithm improvements are demonstrated here.And through discussing and summarizing several major aspects of the improvements of explicit algorithm,several issues which need to be resolved are pointed out,and so the reasonable future research direction and goals are also made.