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| Calculation and Analysis of the Straddle-type Monorail Vehicle-track Beam Coupling Vibration |
| LI Xiao-zhen, GE Yan-long, JIN Zhi-bin |
| （Southwest Jiaotong University, Chengdu, Sichuan 610031, China) |
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Abstract Abstract：Research purposes： In order to evaluate the driving stability and comfort performance of straddle-type monorail transit, the dynamic interaction between vehicle and track beam is studied. A spatial coupling vibration model of monorail system is established before the calculation program is self-compiled for simulation analysis. The dynamic characteristics of standard PC track beam are calculated and assessed, and the influence of different speed and passenger volume on dynamic responses is discussed. Research conclusions： (1) The relationship between midspan displacements of track beam and vehicle speed is not obvious in vertical and transversal directions. The transversal and vertical accelerations of track beam and lateral responses of pier top increase with the rise of the travel speed. Augment of passenger volume will increase the vertical deflection of track beam. (2) The transversal and vertical accelerations of vehicle increase with the rise of the speed, and decrease with the enlargement of the passenger volume. (3) Standard track beam performs well, and the monorail vehicle can pass through the track beam smoothly under designed condition of speed and passenger volume. (4) This research result can provide reference for structure design and traffic management of straddle-type monorail transportation.
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Received: 31 October 2017
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2018, Vol. 35 
