Design & Development of Maglev Girder Bridge & Vehicle

DOI

No DOI

Published In

Volume 3, Issue 3 (2022)

Published Online

May-June 2022

Pages

240-245

Article Type

Research Article

Check for updates

No DOI available for cross-reference

Abstract: A high-speed maglev vehicle is an innovative transportation technology that uses a magnetic levitation and propulsion system, and its guideway design is an important feature of this project that accounts for around 60-80 percent of the original infrastructure development expenses. Under external forces, the allowable variations of such structural parts are extremely minimal. It is critical to be able to precisely estimate the guideway response to the action of high-speed maglev vehicles in order to control the magnitude of guideway displacement and vibration. The vehicle and guideway form a linked system, resulting in precisely defined guideway stiffness needs. To evaluate a wide range of guideway designs for varied operating situations, a reliable simulation technique for the dynamic interaction system must be developed. The major goal of this research is to investigate the dynamic properties of the maglev guideway and to create a reliable numerical approach for simulating the coupled maglev system. External actions on maglev guideways have been summarized as well. The possibilities of modelling the vehicle/guideway interaction system that is influenced by high-speed loadings are then explored. In MATLAB/Simulink, a method to the dynamic response of the coupled system is devised. Five numerical models with varying degrees of precision are built. A series of simulations are run based on these models to investigate the dynamic characteristics of the maglev system. In Simulink, a surface roughness model is constructed to analyze the impact of guideway irregularity, and in Midas/Civil, finite element models matching to the first three numerical models are created. The goal of developing a FE model like this is twofold. On the one hand, the finite element method will be utilized to validate Simulink numerical models. Midas' accuracy in analyzing dynamic properties of guideways under high-speed vehicles, on the other hand, can be validated.