基于AR模型的瞬时风模拟

英文篇名：Simulation of instantaneous wind based on AR model
中文刊名：内蒙古科技大学学报
英文刊名：Journal of Inner Mongolia University of Science and Technology
作者：方治华 ; 李晨 ; 杜晓旭
英文作者：FANG Zhi-hua ; LI Chen ; DU Xiao-xu(Architecture and Civil Engineering School ; Inner Mongolia University of Science and Technology ; Baotou 014010 ; China)
中文关键词：AR模型 ; 随机过程 ; 风速时程 ; 风压时程
英文关键词：AR model ; random process ; wind speed time series ; wind pressure time series
出版日期：2010-03-15
机构：内蒙古科技大学建筑与土木工程学院;
年：2010
期：01
出版单位：内蒙古科技大学学报

摘要

基于AR模型,研究了脉动风的数值模拟方法,编制了瞬时风速和风荷载的模拟程序.将此方法推广到斜拉索结构,模拟计算了苏通大桥A34拉索的风速与风荷载.通过模拟谱与目标谱的对比,证明该方法准确性高,并为下一步斜拉索的振动时程分析提供了激励源.
Based on AR model,the fluctuating wind of numerical simulation method was studied,and the wind speed and wind pressure load procedures were compiled.The method was extended to cable-stayed struture,and the wind speed and wind pressure of A34 cable on the SU-TONG stayed Cable Bridge were simulated by comparison between the simulated spectrum and the target spectrum.The method is proved to be highly accurate,providing excitation for the next time-history vibration of the stayed cable.

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