Abstract：Due to the manufacturing requirements and the large scale of calculation efforts, the topology optimization at the car-level is one of the difficulties in metro car design. Oriented to the structure design of the stainless steel metro carbody, moving morphable components (MMC)-based explicit topology optimization approach is studied. According to the EN 12663 standard, the MMC-based topology optimization model is established. Besides an integral design process, an optimization design platform under explicit topology optimization framework is also established. Resorting to MMC, the loading path of the whole carbody can be obtained directly. The effectiveness of the proposed approach is illustrated through some numerical examples.
2022, Vol. 43 
