Considering the Ctability of Train Movement Based on Wagons Arrangement

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Taheri Heravi, Reza | 2011

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 41281 (08)
University: Sharif University of Technology
Department: Mechanical Engineering
Advisor(s): Sayyadi, Hassan
Abstract:
The main popuse of this Thesis is investigating of the different wagon arrangement effect on stability of the train set. So to gain this goal, one train with 10 wagons has been simulated. The model of the each wagon is Nonlinear with 40 DOF. 3 of the wagons are heavy and make 3 different kinds of arrangement by putting them at first, middle and the end of the train (HLL, LHL and LLH arrangements). Then these three arrangements have been simulated on two differen tracks and conditions, 1st Accelerating on curved track (320 R) with positive slope and 2nd decelerating on curved track with negative slope.We suppose that the contact is singular point and aslso contact equations have bben solved by using Kalker Linear Contact Theory. The results of simulations have been presented as Coupler Force, Roll and Yaw Wagons vibration and also Deraiment Coefficient of critical wheels. The result of simulations shows that HLL arrangement as a safe make up and LLH arrangement as a critical one
Keywords:
Longitudinal Dynamic ; Derailment ; Wheel/Rail Contact ; Dynamics Models ; Train ; Wagons Arrengement

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