• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
  • Scopus
  • Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
  • Chinese S&T Journal Citation Reports
  • Chinese Science Citation Database
Volume 55 Issue 6
Dec.  2020
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Article Contents
YANG Yunfan, ZHOU Qing, GONG Lei, LU Wenjiao, WEN Zefeng. Influence of Wheelset Flexibility on Dynamic Response of Linear Induction Motor Vehicles[J]. Journal of Southwest Jiaotong University, 2020, 55(6): 1313-1319. doi: 10.3969/j.issn.0258-2724.20180866
Citation: YANG Yunfan, ZHOU Qing, GONG Lei, LU Wenjiao, WEN Zefeng. Influence of Wheelset Flexibility on Dynamic Response of Linear Induction Motor Vehicles[J]. Journal of Southwest Jiaotong University, 2020, 55(6): 1313-1319. doi: 10.3969/j.issn.0258-2724.20180866

Influence of Wheelset Flexibility on Dynamic Response of Linear Induction Motor Vehicles

doi: 10.3969/j.issn.0258-2724.20180866
  • Received Date: 29 Oct 2018
  • Rev Recd Date: 23 May 2019
  • Available Online: 14 Oct 2020
  • Publish Date: 15 Dec 2020
  • Linear induction motor (LIM) metro vehicles adopt either inside or outside axle boxes. Aiming at two kinds of LIM metro vehicles, the LIM vehicle-track coupling dynamic model was established respectively, in which the wheel axle was modeled as Euler beam, and the effect of the wheelset flexible deformation on the primary suspension force, motor boom force and the wheel-rail spatial dynamic interaction was considered. The flexible response characteristic of the wheelset as well as the influence on the system dynamic response of LIM vehicles with inside and outside axle boxes was analysed comparatively under the excitation of the wheel/rail irregularity. The results show that, compared with the rigid wheelset model, the main vibration frequency of 77 Hz exists in the dynamic response of the flexible wheelset model for these two kinds of LIM vehicles, which corresponds to the first-order bending-mode frequency of the wheelset. With the consideration of the flexibility of wheelset, the LIM vehicles with inside axle boxes has larger wheel-rail vertical force and smaller air gap in comparison to those with outside axle boxes.

     

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