跌落仿真技术在家电产品品质提升中的应用  

Application of dropping simulation technology in improving the quality of home appliances

作　　者：范正炼 马荣鑫 宋畅 FAN Zhenglian;MA Rongxin;SONG Chang(Kitchen&Water Heater Appliance Division Midea,Foshan,528000)

机构地区：[1]美的厨热事业部,广东佛山528000

出　　处：《家电科技》2023年第4期104-108,共5页Journal of Appliance Science & Technology

摘　　要：家电行业传统的设计方法,由于存在试验成本高,试验周期长,覆盖试验工况少,无法过滤无效的迭代方案等局限性,越来越难以满足家电行业快速发展的需求。在产品研发过程中引进仿真技术,为各大家电企业提供新的设计方法。以某款带包装洗碗机整机为研究对象,首先对洗碗机关键部件的力学性能进行物理测试试验,并采用Radioss软件对仿真所用的材料模型进行校核;其次根据设计部门提供的设计图档,采用HyperMesh对洗碗机进行有限元建模;再次,采用Radioss对带包装洗碗机进行冷冻跌落仿真,分析底壳开裂的失效原因,通过多轮迭代仿真优化,找出有效的品质改善方案;最后,通过整机冷冻跌落物理测试试验验证仿真结果的有效性。结果表明,在洗碗机的开发设计过程中,引进跌落仿真技术,可以替代大多数的物理测试试验,能够快速评估并提升产品的抗跌落性能。The traditional design method in home appliance industry is more and more difficult to meet the needs of the rapid development of home appliance industry due to its limitations,such as high test cost,long test cycle,less test conditions,and unable to filter invalid design methods.The introduction of simulation technology in the process of product development providing a new design methods for major home appliance enterprises,explored by major home appliance enterprises.A packaged dishwasher is taken as the background.Firstly,the mechanical properties of the key components of the dishwasher are tested,and the constitutive model of material in the simulation is benchmarked by using Radioss;Secondly,according to the design drawings provided by the design department,the finite element model of dishwasher is established by HyperMesh;Thirdly,by way of the dropping simulation of dishwasher with package,failure analysis on the fracture of sump are found,and the effective quality improvement schemes are found too through multiple simulation iterations;Finally,the validity of the simulation results is verified by the physical test of dropping.The results show that,in the process of product development of dishwasher,after the introduction of dropping simulation technology,most of the physical tests can be replaced,the anti-dropping capability of products can be quickly evaluated and improved.

关 键 词：家电行业 跌落仿真 材料模型对标 显示动力学 应变率 Radioss 

分 类 号：TB125[理学—工程力学]