Study of Vertical Characteristics with Changes in Prepressure of Rubber Pad Used by High-Speed EMU
Rubber spring plays an important role in improving train performance, so the study of rubber spring is one of the focuses of train dynamics. The vertical characteristic parameters of rubber spring are affected by prepressure significantly, as a result of varying parameters of static stiffness, dynam...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2020/8257286 |
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| _version_ | 1849398147102539776 |
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| author | Chuanbo Xu Mao-Ru Chi Liangcheng Dai Yiping Jiang Zhaotuan Guo |
| author_facet | Chuanbo Xu Mao-Ru Chi Liangcheng Dai Yiping Jiang Zhaotuan Guo |
| author_sort | Chuanbo Xu |
| collection | DOAJ |
| description | Rubber spring plays an important role in improving train performance, so the study of rubber spring is one of the focuses of train dynamics. The vertical characteristic parameters of rubber spring are affected by prepressure significantly, as a result of varying parameters of static stiffness, dynamic stiffness, periodic energy consumption, damping coefficient, and so on. In order to use the theoretical method to calculate the precise static stiffness and predict the dynamic characteristics and to reduce the workload of the rubber spring performance test, this paper takes the annular rubber pad as an example to study with different prepressures. In this paper, the convexity coefficient correction formula (simply called the CCCF) for static stiffness calculation and the dynamic fiducial conversion coefficient (simply called the DFCC) method based on different prepressures are proposed. Through further analysis, the accuracy of CCCF and DFCC is proved both theoretically and experimentally. The results have shown precise prediction of the variation of prepressure on rubber spring parameters by using CCCF and DFCC and can be used as the reference of accurate vertical dynamic-static characteristics of the rubber spring. |
| format | Article |
| id | doaj-art-9e583a91f4fd4097bad3c1cbd4a2474e |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-9e583a91f4fd4097bad3c1cbd4a2474e2025-08-20T03:38:43ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422020-01-01202010.1155/2020/82572868257286Study of Vertical Characteristics with Changes in Prepressure of Rubber Pad Used by High-Speed EMUChuanbo Xu0Mao-Ru Chi1Liangcheng Dai2Yiping Jiang3Zhaotuan Guo4State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu, ChinaState Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu, ChinaState Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu, ChinaState Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu, ChinaState Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu, ChinaRubber spring plays an important role in improving train performance, so the study of rubber spring is one of the focuses of train dynamics. The vertical characteristic parameters of rubber spring are affected by prepressure significantly, as a result of varying parameters of static stiffness, dynamic stiffness, periodic energy consumption, damping coefficient, and so on. In order to use the theoretical method to calculate the precise static stiffness and predict the dynamic characteristics and to reduce the workload of the rubber spring performance test, this paper takes the annular rubber pad as an example to study with different prepressures. In this paper, the convexity coefficient correction formula (simply called the CCCF) for static stiffness calculation and the dynamic fiducial conversion coefficient (simply called the DFCC) method based on different prepressures are proposed. Through further analysis, the accuracy of CCCF and DFCC is proved both theoretically and experimentally. The results have shown precise prediction of the variation of prepressure on rubber spring parameters by using CCCF and DFCC and can be used as the reference of accurate vertical dynamic-static characteristics of the rubber spring.http://dx.doi.org/10.1155/2020/8257286 |
| spellingShingle | Chuanbo Xu Mao-Ru Chi Liangcheng Dai Yiping Jiang Zhaotuan Guo Study of Vertical Characteristics with Changes in Prepressure of Rubber Pad Used by High-Speed EMU Advances in Materials Science and Engineering |
| title | Study of Vertical Characteristics with Changes in Prepressure of Rubber Pad Used by High-Speed EMU |
| title_full | Study of Vertical Characteristics with Changes in Prepressure of Rubber Pad Used by High-Speed EMU |
| title_fullStr | Study of Vertical Characteristics with Changes in Prepressure of Rubber Pad Used by High-Speed EMU |
| title_full_unstemmed | Study of Vertical Characteristics with Changes in Prepressure of Rubber Pad Used by High-Speed EMU |
| title_short | Study of Vertical Characteristics with Changes in Prepressure of Rubber Pad Used by High-Speed EMU |
| title_sort | study of vertical characteristics with changes in prepressure of rubber pad used by high speed emu |
| url | http://dx.doi.org/10.1155/2020/8257286 |
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