518 地震時における電車線路の動特性解析と耐震性向上策

概要

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Poles of overhead contact line are designed based on the earthquake resistant guide, but a line hardware or an electric wire often breaks in middle scale of earthquake. In order to analyze the dynamic characteristics of overhead contact equipment under the condition of earthquake excitation, we developed 3-dimensional dynamic simulation method of overhead contact system. Moreover, we carried out bending and stretching tests of stranded conductors and exciting tests of concrete and steep-pipe poles. From these results, it is confirmed that the real bending rigidity and the bending stress of a stranded conductor is lower than that of a single wire model, and so on. This paper describes the vibration displacement and the material stress of the overhead contact lines and feeders, etc. caused by the assumed earthquake. We propose the earthquake-resistant performance and the improvement methods of overhead contact systems.
一般社団法人日本機械学会の論文
2011-09-05