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在众多桥梁颤振分析的实验加理论方法中,PK-F法是一种通用性很强的等效颤振分析方法。本文以18个气动导数的桥梁颤振分析PK-F法为基础,将随机有限元法应用于随机桥梁颤振分析中,着重研究自激气动力或气动导数的随机影响,建立了桥梁颤振分析的随机有限元法──随机有限元颤振分析方法,用该方法对江阴长江大桥的随机颤振进行了分析。
Among many experimental and theoretical methods for flutter analysis of bridges, the PK-F method is a versatile equivalent flutter analysis method. In this paper, based on PK-F method of flutter analysis of 18 aerodynamic derivatives, the stochastic finite element method is applied to the flutter analysis of random bridges. The random influence of self-excited aerodynamics or aerodynamic derivatives is studied, and the flutter of bridges Analysis of random finite element method ─ ─ random finite element chatter analysis method, using this method of Jiangyin Yangtze River Bridge random chatter analysis.