Research On The Operation Simulation Of The Suspended Monorail Vehicle Based On Simulink

In the 21st century, urbanization has been part of the mainstream of the times. Faced with an increasingly prominent problem of urban disease, urban rail transit has become one of the major solutions now. Suspended monorail transportation system belongs to a type of the urban rail transit, also known as the sky train, which runs under the track beam. And the track beam is supported by the steel or concrete pillars. It has just removed the track to the air, and has overcomed the disadvantages of the other rail transit systems. In the aspect of building and operating, it has many outstanding characteristics.This transportation system is without precedent in China, so the thesis choose the Chiba suspended monorail vehicle of japan as the main object of study. Based on the consulted informations, it taked the related-parameters to analyse the vehicle running’s motion simulation necessarily by the Matlab/Simulink software. The course of study only considered the elements such as the walking wheels, the guiding wheels, suspended mechanisms, the car-body and so on. Through the force analysis, it has written the dynamics equations. And then through the simulations of the equations, it sequentially has drawn the corresponding data.1) This thesis has proposed a way of the track random irregularity of the suspended monorail vehicle. It has established the model of the white noise track random irregularity which has simulated and expressed by the Matlab/Simulink. The model is from the extended of the code A for classification and type of highway pavement.2) It has simplified the vertical dynamics model, established the vertical dynamics equation. The circumstance is that on the straight track, the model operated in the max-speed of 65km/h, and then used Matlab/Simulink to analyses the vertical dynamics simulation. Through the study of the vertical force analysis of the vehicle, it has listed the main components of the vertical force expression, gained the car-bodie’s suspension points and walking wheels’ vertical force data, which has verified basically conforms to the actual situation.3) It has simplified the lateral dynamics model, established the lateral dynamics equation. With setting the different curve radii and the corresponding max-speeds, it has analysed the lateral dynamics simulation by the Matlab/Simulink. Through the study of the lateral force analysis of the vehicle, it has listed the main components of the lateral force expression, gained the car-bodie’s suspension points and walking wheels’ lateral force data, which has verified basically conforms to the actual situation.4) Through adding the superelevation, it has gained the curve max-speeds standards, established the corresponding lateral dynamics equation, simulated by the Matlab/Simulink. The research content mainly included two operation circumstances, the one was changing the superelevation under the same speed, the other was changing the speed under the same superelevation. With the data contrasted, it has analysed the influences of the vehicle operation with superelevation.5) At last, the thesis has analysed the car-bodie’s pendulum angle during the curve operating, determined the simplified model of the vehicle’s tilting, established the simple tilting equation, calculated by the Matlab/Simulink. The research content mainly included two operation circumstances, the one was changing the superelevation under the same speed, the other was changing the speed under the same superelevation. With the data contrasted, it has analysed the influences of the vehicle’s tiling operation with superelevation.