Design And Optimization Of Combined Structure Driver Cab Of High Speed Train

The steel driver cab serving in Ha-trains was adopted as the design prototype; an integral composite driver cab (ICDC) was investigated and designed in this paper based on the excellent characteristic of the composite materials and the resin film infusion (RFI) process technology. On premise of keeping the safety of the drive cab, the structure of the ICDC was optimized by the finite element (FE) analysis software ANSYS. A design plan of the ICDC with much lighter weight was obtained and the parts of the ICDC could serve in the more reasonable load-bearing conditions.Based on the advanced design and manufacture experience of the ICDC at home and abroad, the ICDC in this paper was designed as a combined structure. The CSICDC (combined structure ICDC) mainly consists of steel framework and glass fiber reinforced plastic (GRP)-foam sandwich structure. The steel framework occupies a large portion of weight in the CSICDC for its high density, and the foam sandwich structure occupies a large portion of volume in the CSICDC and the costs is very high, therefore the optimum design work about the CSICDC was focused on the steel framework and foam sandwich structure.The highlights in this paper are as follows:(1) Designed a feasible structure for the ICDC, and primarily designed a rational constituent of the steel framework and foam sandwich structure according to the characteristic of the manufacture process.(2) Profoundly discussed the optimization design module and basic theory of the ANSYS software.(3) Profoundly developed the technical tools and APDL (ANSYS parametrical design language) of the ANSYS software based on the optimum design practice, and realized the aim of constructing the complicated parametrical FE model. The thicknesses of the panel and core materials of the foam sandwich structure were optimized and the core material was optimized as well.(4) The beam thickness of the steel framework was optimized.