The contact performance of multi-segmented pantograph head on test bench and current collection testing equipment
Toward an advanced high-speed railway system, there are ongoing extensive studies on both of railway vehicles and infrastructures. Reducing the aerodynamic noise emitted from the pantograph heads is one of the most important subjects for high-speed railways from the environmental point of view. In o...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | Japanese |
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The Japan Society of Mechanical Engineers
2022-12-01
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| Series: | Nihon Kikai Gakkai ronbunshu |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/transjsme/89/917/89_22-00121/_pdf/-char/en |
| _version_ | 1797942097624432640 |
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| author | Takayuki USUDA Takeshi MITSUMOJI Kyohei NAGAO Yoshitaka KUBOTA Masaki TAKAHASHI Yusuke WAKABAYASHI |
| author_facet | Takayuki USUDA Takeshi MITSUMOJI Kyohei NAGAO Yoshitaka KUBOTA Masaki TAKAHASHI Yusuke WAKABAYASHI |
| author_sort | Takayuki USUDA |
| collection | DOAJ |
| description | Toward an advanced high-speed railway system, there are ongoing extensive studies on both of railway vehicles and infrastructures. Reducing the aerodynamic noise emitted from the pantograph heads is one of the most important subjects for high-speed railways from the environmental point of view. In order to reduce such aerodynamic noise, several shapes of cross-sectional profile have been investigated. A suitable configuration of the pantograph head with a smooth cross-sectional profile has been proposed. Furthermore, not only aerodynamic noise characteristics but also high contact performance is desired in pantographs. To improve the contact performance, it is important to reduce the mass of the parts that touch the contact wire. Consequently, the contact strips are often supported by springs. However, the pantograph head with a smooth cross-sectional profile and the conventional suspension system of the contact strip sometimes cause undesirable lift force characteristics as a result of the variations in the cross-sectional shape due to the operation of the suspension system. For this reason, authors have developed the multi-segmented pantograph head, which employ novel suspension systems that prevent the abnormality of the lift force characteristic. This paper describes the configuration and mechanism of a multi-segmented pantograph head with offset support, the dynamic characteristics and the validation results of the suspension system by bench test equipment in detail, comparing with the test result of the conventional pantograph head. Finally, the contact performance of a multi-segmented pantograph head is validated in current collection testing equipment with actual catenary system. The test results show that the multi-segmented pantograph head has high contact performance up to high-speed region. |
| first_indexed | 2024-04-10T20:03:22Z |
| format | Article |
| id | doaj.art-28aca59e19984894914364981860b47f |
| institution | Directory Open Access Journal |
| issn | 2187-9761 |
| language | Japanese |
| last_indexed | 2024-04-10T20:03:22Z |
| publishDate | 2022-12-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Nihon Kikai Gakkai ronbunshu |
| spelling | doaj.art-28aca59e19984894914364981860b47f2023-01-27T02:49:34ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612022-12-018991722-0012122-0012110.1299/transjsme.22-00121transjsmeThe contact performance of multi-segmented pantograph head on test bench and current collection testing equipmentTakayuki USUDA0Takeshi MITSUMOJI1Kyohei NAGAO2Yoshitaka KUBOTA3Masaki TAKAHASHI4Yusuke WAKABAYASHI5Railway Technical Research InstituteRailway Technical Research InstituteRailway Technical Research InstituteRailway Technical Research InstituteFaculty of Science and Technology, Keio UniversityEast Japan Railway CompanyToward an advanced high-speed railway system, there are ongoing extensive studies on both of railway vehicles and infrastructures. Reducing the aerodynamic noise emitted from the pantograph heads is one of the most important subjects for high-speed railways from the environmental point of view. In order to reduce such aerodynamic noise, several shapes of cross-sectional profile have been investigated. A suitable configuration of the pantograph head with a smooth cross-sectional profile has been proposed. Furthermore, not only aerodynamic noise characteristics but also high contact performance is desired in pantographs. To improve the contact performance, it is important to reduce the mass of the parts that touch the contact wire. Consequently, the contact strips are often supported by springs. However, the pantograph head with a smooth cross-sectional profile and the conventional suspension system of the contact strip sometimes cause undesirable lift force characteristics as a result of the variations in the cross-sectional shape due to the operation of the suspension system. For this reason, authors have developed the multi-segmented pantograph head, which employ novel suspension systems that prevent the abnormality of the lift force characteristic. This paper describes the configuration and mechanism of a multi-segmented pantograph head with offset support, the dynamic characteristics and the validation results of the suspension system by bench test equipment in detail, comparing with the test result of the conventional pantograph head. Finally, the contact performance of a multi-segmented pantograph head is validated in current collection testing equipment with actual catenary system. The test results show that the multi-segmented pantograph head has high contact performance up to high-speed region.https://www.jstage.jst.go.jp/article/transjsme/89/917/89_22-00121/_pdf/-char/enhigh-speed railwaymulti-segmented pantograph headcompliance characteristiccontact loss ratepantograph testing equipmentcurrent collection testing equipment |
| spellingShingle | Takayuki USUDA Takeshi MITSUMOJI Kyohei NAGAO Yoshitaka KUBOTA Masaki TAKAHASHI Yusuke WAKABAYASHI The contact performance of multi-segmented pantograph head on test bench and current collection testing equipment Nihon Kikai Gakkai ronbunshu high-speed railway multi-segmented pantograph head compliance characteristic contact loss rate pantograph testing equipment current collection testing equipment |
| title | The contact performance of multi-segmented pantograph head on test bench and current collection testing equipment |
| title_full | The contact performance of multi-segmented pantograph head on test bench and current collection testing equipment |
| title_fullStr | The contact performance of multi-segmented pantograph head on test bench and current collection testing equipment |
| title_full_unstemmed | The contact performance of multi-segmented pantograph head on test bench and current collection testing equipment |
| title_short | The contact performance of multi-segmented pantograph head on test bench and current collection testing equipment |
| title_sort | contact performance of multi segmented pantograph head on test bench and current collection testing equipment |
| topic | high-speed railway multi-segmented pantograph head compliance characteristic contact loss rate pantograph testing equipment current collection testing equipment |
| url | https://www.jstage.jst.go.jp/article/transjsme/89/917/89_22-00121/_pdf/-char/en |
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