| 摘要(英) |
This study derives formulas about derailment quotients of train to investigate derailment criterions that can response the real conditions by different parameters. Then, it would be obtained on-line derailment quotients on in-situ testing by using these formulas. The computational theory was developed by considering the wheel unloading rates and theories of derailment quotients as well as vehicle system dynamics. To establish the Equations of Motion by vehicle system dynamics, releasing the degrees of freedom including horizontal movement, bounce, and roll on the rigid bodies is needed. In addition, there are four conditions about different positions of contact points at wheel-rail contact area at the derailment impending instant. Moreover, this theory separates two different types of derailment, which is climbing derailment and lifting derailment, to analyze the wheel-rail contact forces balance, including lateral and vertical contact forces, and obtain the relationship of derailment quotients and parameters of mechanical factors.
On the part of numerical simulation, a FEM model which is including one wheelset and two rail tracks is built by using LS-DYNA software to simulate the behavior of lifting derailment and obtain the limits of derailment quotients. Numerical examples demonstrate that, the larger the wheel unloading rates at the flange contact wheel are made, the smaller the limits of derailment quotients are. The variation of friction coefficients and flange angles cannot make the limits of derailment quotients obvious change.
|
| 參考文獻 |
[1] Nadal, M. J., “Locomotives a vapeur, collection encyclopedie scientifique,” Biblioteque de Mecanique Appliquee et Genie, Vol. 186, No. 1, pp. 56-67 (1908).
[2] Karmel, A., and Sweet, L. M., “Wheelset mechanics during wheel climb derailment,” Journal of Applied Mechanics, Vol. 51, No. 5, pp. 680-686 (1984).
[3] Sweet, L. M., and Karmel, A., “Evaluation of time-duration dependent wheel load criteria for wheel climb derailment,” Journal of Dynamic Systems, Measurement and Control, Vol. 103, No. 2, pp. 219-227 (1981).
[4] 鐵道部科學研究院，鐵路行車安全譯文集（脫軌研究專輯），中國鐵道出版社(1998)。
[5] Weinstock, H., “ Wheel climb derailment criteria for evaluation of rail vehicle safety,” Proceeding of the ASME Winter Annual Meeting, Paper No.84-WA/RT-1 (1984), pp. 1-7.
[6] 曾京、关庆华，「铁道车辆运行安全评判的轮对爬轨脱轨准则」，交通運輸工程學報，第七卷，第六期，第1-5頁(2007)。
[7] 曾宇清、王卫东、舒兴高、于卫东，「車輛脫軌安全評判的動態限度」，中國鐵道科學，第20卷，第4期 (1999)，第70-77頁。
[8] Koo, J. S. and Oh, H. S., “A new derailment coefficient considering dynamic and geometrical effects of a single wheelset,” Journal of Mechanical Science and Technology, Vol. 28, No. 9, pp. 3483-3498 (2014).
[9] ISHIDA, H., and MATSUO, M., “Safety criteria for evaluation of the railway vehicle derailment,” QR of RTRI, vol. 40, pp. 18-25 (1999).
[10] Zhai, W. M., and Sun, X., “A detailed model for investigating vertical interaction between railway vehicle and track,” Vehicle System Dynamics, vol. 23, No. 1(Suppl.), pp. 603-615 (1994).
[11] Zhai, W. M., Cai, C. B., and Guo, S. Z., “Coupling model of vertical and lateral vehicle/track interactions,” Vehicle System Dynamics, vol. 26, No. 1, pp. 61-79 (1996).
[12] 翟婉明，車輛─軌道耦合動力學，第三版，中國鐵道出版社，北京(2007)。
[13] 洪介仁，「軌道車輛行駛遇地震時之動態模擬與安全評估」，碩士論文，國立臺灣大學機械工程學系，台北(2006)。
[14] 何鴻翔，「捷運車輛之動態模擬」，碩士論文，國立臺灣大學機械工程學系，台北(2007)。
[15] 余兆礫，「輪─軌接觸幾何關係初探」，碩士論文，國立成功大土木工程學系，台南 (2006)。
[16] 廖元勝，「輪對運動對輪軌蠕滑率力之影響」，碩士論文，國立成功大學土木工程學系，台南 (2007)。
[17] 黃仁政，「高速移動荷載下軌道系統動態響應」，碩士論文，國立成功大學土木工程學系，台南(2007)。
[18] Monk-Steel, A. D., Thompson, D. J., de Beer, F. G. ,and Janssens M. H. A., ”An investigation into the influence of longitudinal creepage on railway squeal noise due to lateral creepage,” Journal of Sound Vibration, Vol. 293, Issues 3–5, pp. 766–776 (2006).
|
[Endnote RIS 格式]
[相關文章]
[文章引用]
[完整記錄]
[館藏目錄]
至系統瀏覽論文 ( 永不開放)
plurk
funp
live
udn
HD
myshare
netvibes
friend
youpush
delicious
baidu
Google bookmarks
del.icio.us
hemidemi
facebook
twitter
google
reddit