摘要
通过把桅杆结构的运动分为整体运动和局部运动两种，对其进行模态分析，整体运动为包含索的拟静态运动的桅杆的三维运动，局部运动为两端固定的索的模态运动。用拉格朗日运动原理合并这两种运动，从而得到了这两种运动之间以及各模态运动之间的非线性耦合。并通过算例的时程分析，同样验证各模态运动的耦合作用。
Guyed mast motions are sempted into two parts, general motions and local motions. The gengral tions of the smicture with inclusion of quasi - static motions of the cable, while the local motions are metions of cable with fixed ends. By using Lagrange's formulation, algera goveming equations are obtained in which global - local interaction appeare as nonlinear coupling. The nonlinear coupling of global - foral wodel motions is also verified by computing a numerical sample with direct integration method.
出处
《土木工程学报》
EI
CSCD
北大核心
2000年第2期51-55,86,共6页
China Civil Engineering Journal
基金
国家自然科学基金!599778030
