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Study on Air Springs of High-speed Maglev Train

Author: YaoYuan
Tutor: LiBaoLiang
School: Dalian Jiaotong University
Course: Mechanical Design and Theory
Keywords: High-speed maglev vehicles Air spring Transition curve
CLC: U266.4
Type: Master's thesis
Year: 2008
Downloads: 127
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Abstract


Air spring with nonlinear stiffness characteristics , low vibration frequency , automatically avoid resonance and suppress the resonance amplitude , etc. , are widely used in the domestic and international rail vehicle bogie . CMT vertical dynamics of the high - speed car system , air spring secondary suspension one of the key components of the system , it can effectively filter out high frequency Excitation ; making body floor when the bodywork bearer changes by adjusting the air spring The surface height is kept constant. In this paper, co-simulation between ADAMS and Matlab , the establishment of multi-body system mode (Multi-body System Model) and ADAMS / MATLAB simulation technology platform . Fully understand the history of the development of the air spring and Research and the working principle of the air spring stiffness characteristics , frequency characteristics based on the thermodynamic and kinetic model of the air spring , ADAMS / View module to establish a non- air spring the linear dynamic model and simulation analysis to verify the nonlinear stiffness characteristics of the air springs . Dynamics and control model of the vehicle and train three modular assembly on a collaborative platform for multi-body dynamics and system analysis , the use of three basic modules ( suspended / guiding unit suspended framework and the body and the traction mechanism ) , and with the combination of air spring model . Sinusoidal transition curve straight lines and circular curve consisting of a five-phase small radius curve track Maglev vehicle model combined R350 small radius curve track dynamics simulation using ADAMS / Post-Processor module simulation results analysis and processing . Herein pendulum force simulation data, and were compared with the data obtained using the bus air spring . The results show that : mechanics equations created new air spring model , as Maglev vehicle model secondary suspension components , little difference the Maglev vehicle pendulum measured lateral force component with the original model , the vertical component of a lot less than the original model makes illustrate the application of the new air spring between the bogie and the car body vibration improved , the maglev car model has a better stability through the curved track .

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CLC: > Transportation > Rail transport > Locomotive works > EMU,EMU (power train ) > Non- wheel rail Department of locomotives, Maglev,gas floating car
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