噪声与振动控制2026，Vol.46Issue(2)：20-25,53,7.DOI:10.3969/j.issn.1006-1355.2026.02.004
跨座式单轨车体表面的脉动风速时程模拟
Simulation of Fluctuating Wind Speed Histories for the Surfaces of Straddle Monorail Vehicles
摘要
Abstract
To fully consider the influence of crosswind loads on the dynamic simulation of straddle monorails and im-prove the accuracy of wind load simulation,a monorail vehicle of Chongqing Rail Transit Line 2 was taken as the object for study.The flank of the vehicle was represented by a set of nodes,and a node set for multi-point simulation of fluctuating wind speed histories was constructed.Based on the Davenport wind speed spectrum theory and the autoregressive(AR)mod-el theory of linear filtering method,an AR model for computing multi-point fluctuating wind speed histories was established in MATLAB code.The accuracy of wind speed histories of different nodes was analyzed and verified through UM simula-tion.The result indicates that the established AR model can realize the simulation of multi-point fluctuating wind speed histo-ries with the accuracy basically guaranteed.The simulation accuracy is higher for the nodes near geometric center,while low-er for nodes near geometric boundary.Through the analysis of the accuracy of results,it is verified that the actual fluctuating wind speed is consistent with the simulated wind speed histories.The results of this study may provide a theoretical basis for further study of wind loads on straddle monorail vehicles.关键词
振动与波/跨座式单轨/风速模拟/脉动风速时程/Davenport风速谱理论/自回归模型Key words
vibration and wave/straddle monorail vehicle/simulation of wind speed/fluctuating wind speed histories/Davenport wind speed spectrum theory/autoregressive model分类
交通工程引用本文复制引用
周新建,范金正,冀杰..跨座式单轨车体表面的脉动风速时程模拟[J].噪声与振动控制,2026,46(2):20-25,53,7.基金项目
国家自然科学基金(52065020) （52065020）
