基于模拟脉动风场的铁路接触网风振响应分析  

Wind-induced Vibration Analysis of Railway Catenary System Based on Fluctuating Wind Field Simulation

作　　者：朱伟林[1] 周全[1] 罗伟[1] 

机构地区：[1]武汉大学动力与机械学院,湖北武汉430072

出　　处：《机械与电子》2011年第12期76-78,共3页Machinery & Electronics

摘　　要：研究了铁路接触网系统在风载下的动态响应特性.首先,采用ANSYS软件建立了腕臂结构的有限元模型,根据找形理论确定了悬挂系统初始形态.其次,采用谐波合成法模拟了运行现场的脉动风场,并对系统在风载荷作用下的动态响应进行了分析.通过与现场实测数据的对比,分析了接触网系统的风致振动响应特点.The purpose of this paper is to study the dynamic response characteristic of the railway catenary system in condition of wind induced vibration. First, we built finite element model of the catenary support system with software ANSYS. We ensured the original form of the suspended system in according to the form- finding theory and method. Then, based on harmonic synthesis method, we simulated fluctuating wind field, and performed dynamic response simulation under the simulated wind load. Compared with the data of field tests, the response characteristic of the catenary system under wind induced vibration is investigated.

关 键 词：接触网 脉动风场所 风致振动 有限元 

分 类 号：TH13[机械工程—机械制造及自动化] U225[交通运输工程—道路与铁道工程]