摘要
受电弓精细动力学建模及固有振动特性分析对于进行结构优化设计,提高装备性能具有重要意义。对于结构可靠和性能优良的高速受电弓,不仅取决于整体动力学特性,局部振动特性也成为其中的关键环节。本文对受电弓精细动力学建模方法进行了研究,讨论了不同影响因素对受电弓固有振动特性的影响。研究表明,受电弓主要部件适当的质量分布和连接设置特性是获得符合实际结构固有振动特性的重要保证。
Fine dynamic modeling and vibration characteristics analysis of pantographs have great significance in structural optimization design and equipment performance improvement.For high speed pantograph with reliable structure and excellent performance,not only the overall dynamic characteristics,but also the local vibration characteristics become the key link.The fine dynamics modeling method of pantograph was studied and it was found that the proper mass distribution of the main components in pantograph and their connection setting characteristics are the important guarantee to obtain the natural vibration characteristics of the actual structure.
作者
叶梓佑
刘龙飞
吴荣平
吴孟臻
许向红
YE Ziyou;LIU Longfei;WU Rongping;WU Mengzhen;XU Xianghong(College of Materials Science and Engineering,Hunan University of Science and Technology,Xiangtan 411100,Hunan,China;State Key Laboratory of Nonlinear Mechanics,Institute of Mechanics,Chinese Academy of Sciences,Beijing 100190,China;Beijing CRRC Corporation Limited CED Railway Electric Tech Company Limited,Beijing 100176,China)
出处
《力学与实践》
北大核心
2019年第3期265-269,共5页
Mechanics in Engineering
基金
国家自然科学基金(11672297)
中国科学院战略性先导科技专项(B类)(X DB22020000)资助项目
关键词
高速受电弓
动力学模型
固有振动特性
质量补偿
弓头悬挂
high-speed pantograph
dynamic modeling
vibration characteristic
mass compensation
pantograph head suspension
