基于拓扑优化的折弯机结构优化设计

摘要

针对传统折弯机设计存在结构过于保守、笨重等缺点,以某数控液压折弯机为研究对象,利用Pro/E建立三维模型,并根据有限元理论应用ANSYS Workbench软件对折弯机进行拓扑优化.以轻量化为目标,基于拓扑优化结果,给出初步优化模型,再通过尺寸优化确定墙板和加强板厚度.最终给出满足强度刚度要求的结构优化方案,并使总体质量减少.研究提出了在折弯机结构优化设计中,将拓扑优化与尺寸优化相结合的设计方法.%Traditional bending machine design has the disadvantages of heavy structure.By using Pro/Engineer of 3D design software and ANSYS Workbench,the bending machine topology was optimized.To reduce the weight,the preliminary optimization model was designed based on the topology optimization.The thickness of the wall plate and reinforced plates were optimized,and the final structural optimization scheme was confirmed.The final scheme met the requirements of strength and stiffness,and the total mass was reduced.The study provides a design method that the topology optimization combines with size optimization.