首页> 外文会议>The 7th China-Japan-Korea joint symposium on optimization of structural and mechanical systems >DESIGN OF ALUMINUM EXTRUSION PANELS IN A RAILWAY-CAR BODY USING ORTHOGONAL ARRAYS
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DESIGN OF ALUMINUM EXTRUSION PANELS IN A RAILWAY-CAR BODY USING ORTHOGONAL ARRAYS

机译:基于正交阵列的铁路车厢铝型材挤压板设计

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The aluminum railway-car body consists of sandwich panels, and a sandwich panel is made of units which are placed side by side and welded along the edges of the facing plates.A unit is fabricated from an extrusion process and constructed with webs and ribs. The mass and stiffness of the structure can be determined by changing the shape of the webs and ribs.In this research, a design process based on structural optimization and discrete design with an orthogonal array (DDOA) is proposed to design the rib shape of each unit of a railway-car body. The design process is divided into two steps.First, topology optimization is performed to obtain the conceptual design of the ribs. The results of topology optimization are reflected in the decision of the rib shape in the next step.Second, DDOA is used to obtain the optimum combination for the rib shape of each unit. The process for a systematic design of an aluminum railway-car body is established to keep sufficient strength, and optimum rib shapes are obtained.
机译:铝制火车车厢由夹心板组成,夹心板由并排放置并沿饰板边缘焊接的单元制成。一个单元由挤压工艺制成,并由腹板和肋构成。通过改变腹板和肋的形状可以确定结构的质量和刚度。在这项研究中,提出了一种基于结构优化和正交设计(DDOA)的离散设计的设计过程,以设计每个肋的肋形状。铁路车厢的单位。设计过程分为两个步骤。首先,进行拓扑优化以获得肋的概念设计。拓扑优化的结果将反映在下一步的肋骨形状决定中。其次,使用DDOA来获得每个单元肋骨形状的最佳组合。建立铝制铁路车厢的系统设计过程以保持足够的强度,并获得最佳的肋形。

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