DESIGN OF ALUMINUM EXTRUSION PANELS IN A RAILWAY-CAR BODY USING ORTHOGONAL ARRAYS
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.
Topology Optimization Discrete Design with an Orthogonal Array (DDOA) Railway-Car Body
Young-Myung Lee Hyun-Ah Lee Yong-Won Yoon Gyung-Jin Park
Dept.of Mechanical Engineering,Hanyang University,Seoul,Korea Center of Novel Synthesis of Structural and Mechanical Systems,Hanyang University,Seoul,Korea Safety Research,Korea Automobile Testing and Research Institute,Hwaseong,Korea Dept.of Mechanical Engineering,Hanyang University,Ansan City,Korea
国际会议
黄山
英文
1-2
2012-06-18（万方平台首次上网日期，不代表论文的发表时间）