- 著者
- Yasushi UJITA Kohji FUNATSU Yasufumi SUZUKI
- 出版者
- Railway Technical Research Institute
- 雑誌
- Quarterly Report of RTRI (ISSN:00339008)
- 巻号頁・発行日
- vol.44, no.1, pp.28-33, 2003 (Released:2006-09-13)
- 参考文献数
- 6
- 被引用文献数
- 6 7
Serious railway accidents in recent years in Japan were surveyed in order to clarify the target of railway crashworthiness. From the result, it was found that level crossing collision accidents were one of the most important targets of the crashworthiness of railway carriages. Both numerical simulations and empirical method to analyze crushing behaviour of railway carriages in Japan were applied in this research work. As the empirical methods, quasi-static compression tests for carbody sections were used to understand crushing behaviour of the carbody. Using the crushing characteristics obtained from the test, one-dimensional lumped mass numerical model was built and calculated to evaluate impacting behaviour of the trains at collision accidents. Three-dimensional FE analysis and real size train crash test were also included in this research program. The results of both numerical method and experimental tests were compared.
8 0 0 0 OA New Materials for High Speed Railway Vehicle
- 著者
- Yasufumi SUZUKI
- 出版者
- The Iron and Steel Institute of Japan
- 雑誌
- Tetsu-to-Hagane (ISSN:00211575)
- 巻号頁・発行日
- vol.79, no.8, pp.N568-N575, 1993-08-01 (Released:2009-06-30)
- 参考文献数
- 13
- 被引用文献数
- 4
- 著者
- Joel HANSSON Masayuki TAKANO Tadao TAKIGAMI Takahiro TOMIOKA Yasufumi SUZUKI
- 出版者
- 社団法人 日本機械学会
- 雑誌
- JSME International Journal Series C Mechanical Systems, Machine Elements and Manufacturing (ISSN:13447653)
- 巻号頁・発行日
- vol.47, no.2, pp.451-456, 2004 (Released:2005-01-25)
- 参考文献数
- 9
- 被引用文献数
- 3 18
A new method for improving riding comfort by reducing vertical flexural vibrations in railway car bodies using piezoelectric elements is studied in this paper. Piezoelectric elements are attached on the car body in order to convert vibration energy to electrical energy, which can be dissipated in a shunt circuit. Assuming the car body as an elastically supported Bernoulli-Euler beam, theoretical analysis and numerical simulations are carried out. The numerical results are supplemented by experiments on a 1:5 scale model of a Shinkansen vehicle. Both numerical and experimental results indicate that the method yields significant vibration suppression with only a small amount of added weight. Two types of shunt circuits; a single-mode circuit and a multi-mode circuit are studied.