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以叉车后桥零件为例,本着产品轻量化的目的,应用拓扑优化技术及铸造工艺仿真技术进行了结构优化设计和工艺方案设计。在保证零件刚度最大化的前提下,对叉车后桥进行优化减重方案设计,经过两次拓扑优化和强度验证,零件质量减至21.77kg,减轻率为38.97%。同时运用铸造CAE技术对零件的铸造工艺方案进行设计,实现了浇注工艺缺陷的最小化。结果表明,CAE技术在精铸件的轻量化开发过程中起着缩短周期、降低开发成本的作用。
Taking the rear axle parts of forklift as an example, the structure optimization design and process scheme design are carried out based on the purpose of product weight reduction, application of topology optimization technology and casting process simulation technology. Under the premise of maximizing the rigidity of the parts, the optimal design of the weight reduction scheme for the rear axle of the forklift truck was optimized. After two topological optimization and strength verification, the quality of the parts was reduced to 21.77kg with a reduction rate of 38.97%. At the same time, casting CAE technology is used to design the casting process scheme of the parts, which realizes the minimization of casting process defects. The results show that CAE plays the role of shortening the cycle and reducing the development cost during the lightweight development of casting.