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1.东华大学 机械工程学院,上海 201620
2.万邦数字能源股份有限公司,常州 213161
3.上海精星仓储设备工程有限公司,上海 201611
陈齐,男,2000年生,河南信阳人,在读硕士研究生;主要研究方向为钢结构轻量化设计、可靠性设计;E-mail:963222825@qq.com。
收稿日期:2023-04-17,
修回日期:2023-08-08,
纸质出版日期:2025-02-15
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陈齐,吕志军,褚铭,等. 物理模拟与卷积网络混合的货架立柱弯曲损伤预测[J]. 机械强度,2025,47(2):19-27.
CHEN Qi,LÜ Zhijun,CHU Ming,et al. Hybrid physical simulation and convolutional network for rack uprights bending damage prediction[J]. Journal of Mechanical Strength,2025,47(2):19-27.
陈齐,吕志军,褚铭,等. 物理模拟与卷积网络混合的货架立柱弯曲损伤预测[J]. 机械强度,2025,47(2):19-27. DOI: 10.16579/j.issn.1001.9669.2025.02.003.
CHEN Qi,LÜ Zhijun,CHU Ming,et al. Hybrid physical simulation and convolutional network for rack uprights bending damage prediction[J]. Journal of Mechanical Strength,2025,47(2):19-27. DOI: 10.16579/j.issn.1001.9669.2025.02.003.
叉车等意外机械撞击可能导致工业货架立柱的稳定性严重退化。以行业常见的5种型号立柱为例,基于物理试验机制建立了立柱弯曲损伤的有限元仿真模型,分析发现即使是小的冲击变形(1 mm)也可能导致立柱极限承载能力下降(最大约37%);相比其他受冲击位置,棱线处的弯曲损伤使得立柱稳定性下降更为显著。以此为基础,通过物理模拟和卷积神经网络方法,建立了立柱弯曲损伤状态的智能化预测模型。结果显示,该预测模型所得到的损伤立柱残余承载能力值与有限元仿真数据吻合良好(平均绝对百分比误差为5.99%),可用于指导货架立柱弯曲损伤性能的快速评估。
Accidental mechanical impacts such as forklifts may lead to serious degradation of the stability of industrial rack uprights.The finite element simulation model of the upright bending damage was established based on the physical test mechanism with five types of common upright in the industry as examples
and the analysis found that even a small impact deformation (1 mm) may lead to a decrease in the ultimate bearing capacity of the upright (maximum about 37%).Compared with other impacted positions
the bending damage at the prism made the upright stability decrease more significantly.Based on this
an intelligent prediction model of the bending damage state of the upright was established by physical simulation and convolutional neural network method.The results show that the residual load capacity values of the damaged upright obtained from the prediction model agree well with the finite element simulation data (the mean absolute percentage error is 5.99%) and can be used for rapid assessment of the bending damage performance of the rack upright.
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