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蒸烤箱跌落损伤分析及优化

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本文以某蒸烤箱跌落测试内胆爆瓷为例,分析了内胆碎裂的具体原因.该蒸烤箱在跌落测试中,出现明显的爆瓷现象,通过传统的跌落测试分析手段,无法找到爆瓷的具体原因.通过对包装结构进行修改,厚度进行增加,蒸烤箱内胆增加支架等多种手段均无法解决该问题.通过有限元仿真分析,对蒸烤箱各跌落工况进行仿真分析,发现该蒸烤箱在楞跌落时,整体冲击集中在前板上,爆瓷区域附近有开孔,导致该区域刚度较弱,变形较大,引起变形.对前板应力进行分析后发现,内胆增加的支架并未对整体的结构起到加强作用.通过对结构的修改及工艺成本的考虑,选取了内胆和前板拆开的方式解决了该问题.通过仿真对跌落过程实现可视化,可以更直接的找到内胆爆瓷的主要原因,该方法减少了方案验证的次数,缩短了研发周期,节省了打样成本,具有很好的推广价值.
Analysis and Optimization of Drop Damage in Steam Oven
This article takes the drop test inner liner of a certain steam oven as an example to analyze the specific reasons for inner liner cracking.During the drop test,there was a noticeable porcelain explosion phenomenon in the steam oven,and the specific cause of the porcelain explosion cannot be found through traditional drop test analysis methods.Various methods such as modifying the packaging structure,increasing thickness,and adding brackets to the inner container of the steam oven cannot solve this problem.Through finite element simulation analysis,various drop conditions of the steam oven were simulated and analyzed.It was found that the overall impact of the steam oven was concentrated on the front plate during the drop,and there were openings near the porcelain explosion area,resulting in weak stiffness and significant deformation in the area,causing deformation.After analyzing the stress on the front panel,it was found that the increased support of the inner liner did not enhance the overall structure.By considering the modification of the structure and process cost,the method of disassembling the inner liner and front panel was chosen to solve the problem.By visualizing the drop process through simulation,the main cause of inner liner porcelain explosion can be more directly identified.This method reduces the number of scheme verifications,shortens the research and development cycle,saves sampling costs,and has good promotional value.

drop simulationsteam ovenpackaging optimizationexplicit dynamic

王小龙

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华帝股份有限公司 中山 528300

跌落仿真 蒸烤箱 包装优化 显示动力学

2024

日用电器
中国电器科学研究院有限公司

日用电器

影响因子:0.071
ISSN:1673-6079
年,卷(期):2024.(2)
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