文档介绍：西南交通大学硕士研究生学位论文第1页摘要与柔性接触网相比,刚性接触网具有安装净空低、无断线隐患、维护工作量少等优点,在城市轨道交通中被广泛应用。然而,我国刚性接触网理论研究尚处于起步阶段、应用技术还不成熟,许多工程实际中出现的问题(如弓网拉弧、电灼烧等)无法应用现有理论较完善地解决。基于此背景,针对刚性接触网系统进行仿真分析,从理论层面研究刚性接触网系统动态问题显得越来越重要。本文以广州地铁弓网耦合系统为研究对象,运用Ansys有限元分析软件对刚性悬挂接触网模型进行了静力分析和模态分析,得到了共振频率及振型,并确定了跨距的设置原则;采用受电弓三元质量块模型,通过具有一定刚度的弹簧与刚性悬挂接触网模型连接构成弓网耦合动力学模型,并以接触力为弓网受流质量的评价指标,运用有限元生死单元技术,模拟受电弓沿接触线滑动接触的过程,分析了接触线型号、受电弓型号、列车运行速度、跨距、悬挂结构等效刚度、悬挂结构等效质量、受电弓弓头质量、弓头阻尼、弓头刚度、接触线坡度以及弓网接触刚度对弓网耦合系统受流质量的影响。对比了仿真结果数据与地铁现场实测数据,证明了仿真模型的合理性,并在此基础上,设计了城市轨道交通弓网仿真数据分析软件主界面,为接触网设计及施工人员查询、对比及分析弓网关系基础数据提供了参考依据。关键词:刚性悬挂;弓网耦合;Ansys;生死单元:弓网受流 p删with theflexiblecatenary,the rigidcatenary system isespeciallv suitable 士orutlllzlng Inurbanrail transit asitslowerinstallationclearance,nodisco彻ection hidden. 1essmaintenance,etc·However,the rigidcatenary's theoretical research isstillinitsin‰cⅥ theapplication technology is notmature,andmany practicalengineering problems(Such aS panto伊aph-catenaryarcing,electricignition,etc.)can notapply theexisting theory tos01ve onthebackground,simulating therigidcatenary syStem isb黝in2 more andmoresignificant tostudy itsdynamic problems ina廿1eoretical1evel. 11lsthesls takes asouthern citysubway r{ syStem aS stlldy object,applies thefiniteelement software Ansys forthestaticanalysis a11d themodal 缸alysl8 ofrigid catenary,achieves the resonant frequency andthemode,llinesnle setpnnclpie ofthespan;Utilizing thepantograph three-dimensional maSsmodel,constmcts apantograph。catenary couplingdynamics model through connecting the contact foreewith the ngid Suspenslon, and uses contactpressure as the eva】uation i11dex of the 啪ent—rec劫Ⅵng quality inpantograph—catenarysystem,implements simulation analvsis of the slide COntact process ofthepantograph along thecontact嘶re with thebinh—de砒 eJeIIlentteCllllolo烈then analyzes theinfluences on thecurrent—receiving qualitv in也e panto伊aph。caten哪coupling system fi'om thecontact wiretypes,thepallto伊aphtypes,the 咖n speed,the span,suspension structu