高速铁路桥梁噪声预测方法的探讨

Research on Prediction of Noises of High Speed Railway Bridge

基于统计能量分析 (SEA)的基本原理 ,将SEA法应用于高速铁路桥梁噪声预测之中 ,分析了SEA的基本原理与高速铁路桥梁噪声产生的关系 ,认为SEA方法是预测铁路桥梁噪声辐射可行的方法。并用SEA建立了铁路桥梁子结构能量交换数学模型。

In this paper, the statistical energy analysis (SEA) is applied to prediction of the noises of high speed railway bridges. Based on analysis on the relationship between the principle of SEA and production of noises of high speed railway bridges, SEA is considered as a feasible method for predicting noise radiation of high speed railway bridges. A mathematical model of energy exchange among the sub-structures of railway bridges is proposed by using SEA.