| 魏向东,焦敬品,吴荣平,张志奇,许向红*.高速受电弓固有振动特性的实验研究[J].实验力学,2020,35(1):67~72 |
| 高速受电弓固有振动特性的实验研究 |
| Experimental study on natural vibration characteristics of high-speed pantograph |
| 投稿时间：2019-03-27 修订日期：2019-04-22 |
| DOI：10.7520/1001-4888-19-044 |
| 中文关键词: DSA380高速受电弓 固有振动特性 弓网接触状态 |
| 英文关键词:DSA380 high-speed pantograph Natural vibration characteristics Boundary conditions of pantograph head |
| 基金项目:国家自然科学基金面上项目(11672297)、中国科学院战略性先导科技专项(B类)项目(XDB22020000)资助 |
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| 中文摘要: |
| 高速列车行驶过程中，弓网共振会增大受电弓与接触网振幅，这可能导致弓网离线、受流质量降低，甚至损坏受电弓和接触网。实验研究不同运行工况下受电弓的固有振动频率和模态振型，规避弓网共振，对于未来电气化铁路的弓网优化设计至关重要。本文针对DSA380型高速受电弓，用自由和橡胶边界模拟受电弓的两种运行工况，获得了弓头的固有振动频率和模态振型，实验结果表明弓头振动特性与弓网接触状态密切相关。 |
| 英文摘要: |
| During the high-speed train travel, the pantograph-catenary resonance increases the amplitudes of the pantograph and the catenary, which may cause pantograph-catenary disconnection and decline in current-receiving quality, and even damage the pantograph and the catenary. Experimental studies on the inherent frequency and modal shape of the pantograph under different operating conditions to avoid the pantograph-catenary resonance are crucial for pantograph-catenary optimization design of future electrified railways. This work simulates two boundary conditions of DSA380 high-speed pantograph head by free and rubber boundaries to obtain the inherent frequency and modal shape of the pantograph head. The experimental results show that the natural vibration characteristics of the pantograph head are closely related to the pantograph-catenary contact state. |
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