Research on Construction Error Simulation of Rigid Catenary for 160 km/h Urban Rail Transit
Journal Title: Urban Mass Transit - Year 2024, Vol 27, Issue 6
Abstract
Objective As construction error of the rigid catenary at 160km /h train speed affects the dynamic performance of the pantograph catenary, the technical parameters that meet the condition for the pantograph and rigid catenary system at 160 km/h are designed based on the on-site measurement data and the simulation analysis of rigid pantograph catenary system. Method Firstly, the guiding height (vertical distance from catenary to rail surface) parameters of Guangzhou Metro Sanbei Line are measured, and the probability distribution of guiding height is analyzed. It is concluded that the guiding height distribution is basically consistent with the static height distribution of the fixed points, both following the normal distribution. Then, in consideration of the construction error of the guiding height, the DSA250 pantograph is selected and the dynamic simulation model of the pantograph is established according to TB/T 3271. Finally, the dynamic performance of the pantograph catenary under different construction errors is simulated and analyzed, and the technical parameters of the pantograph catenary system meeting 160 km/h requirements are designed. Result & Conclusion The construction error of rigid suspension device guiding height follows the probability distribution model of normal distribution. The standard deviation of the contact force with construction error is 2 to 3 times that without construction error, indicating that the construction error of the guiding height has significant influence on the dynamic coupling performance of the pantograph catenary. For the construction error of rigid suspension device guiding height, the height of 6 fixed points at the anchor segment joints strictly follows the normal distribution with the mean being the nominal height of the overhead line and the standard deviation being 2 mm, and the height of other fixed points strictly follows the normal distribution with the mean being the nominal height of the overhead line and the standard deviation being 3 mm.
Authors and Affiliations
Jinxin QIAO, Jinfa GUAN, Junying CHENG, Cheng LUO, Fan FENG
Keywords
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- EP ID EP737764
- DOI 10.16037/j.1007-869x.2024.06.035
- Views 61
- Downloads 0
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