摘要
本文根据惯性耦合的概念，导出了能有效地解相互作用问题的分枝模态──二步分析法，即将其中一个（或数个）部件不失其特性地粗略离散，对整体进行分析，求出部件之间的耦合项；然后将耦合项作为外荷加到各自细划分的部件方程中去，对部件进行内力分析。本文用此法将上部结构及下部结构分为两个分枝，对液体－结构－桩基－土相互作用进行了分析。由算例可以看到，此方法即使对两部件各力学性能差异很大的情况下也非常有效。
In this paper, based on the idea of inertia coupling, a two step method for an interaction system ispresented, in which the upper and lower structures are divided into two branches. The interaction of liquid,structure,pile,soil is analyzed. It is shown by calculation that this method gives satisfactory results,even when the machenical properties of the twoparts are very defferent.
出处
《振动工程学报》
EI
CSCD
1994年第4期346-350,共5页
Journal of Vibration Engineering
