Low-speed Maglev Train Bogie Lightweight And Optimization Method

This subject is from the important cooperation project—Ba Daling Maglev Train travel demonstration line.The bogie frame is one important part of Maglev Train with complex working conditions. It is the assembling platform of the dynamic components of Maglev, but also an organ supporting and passing the loads. Its attributes also affect the whole train static and dynamic performance directly. Therefore, it is very necessary to do the structural optimization job on the basis of its structure analysis. The size optimization of bogie was done base on the reference [12]. In this paper, such work was included.In this paper, the structure and loads analysis is conducted on the bogie of Maglev Train. On this basis, we researched the related optimization methods of the bogie and made comparison among them. In succession to this, the optimization models were analyzed according to the related optimization theories. Then the theoretic analysis was done on the simplified mechanical model of the bogie. It is also studied that how to apply the FEM method to the bogie optimization.In the following chapters, we studied the method of building the parametrical model and the FEM analyzing. Then we complete the size optimization job in order to lighten the bogie. The static analysis and modal analysis are studied on the optimized results to verify its feasibility. We also compared the results of FEM analysis and the theoretic analysis and drew some useful conclusions are from it.An application is designed with VC++, in which the ANSYS acted as a FEM analysis tool, to simplify the optimization job.The work and conclusions of this paper will help to improve the future design of the bogie, and pave the way for further optimization work such as global optimization and multi-object optimization. The application is also worthy to research much further.