巩桂芬,刘随强,田洋洋.钢钉数量对托盘弯曲力学性能的影响[J].包装工程,2022,43(1):141-147.
GONG Gui-fen,LIU Sui-qiang,TIAN Yang-yang.Effects of the Number of Steel Nails on Bending Mechanical Properties of Pallets[J].Packaging Engineering,2022,43(1):141-147. |
| 钢钉数量对托盘弯曲力学性能的影响 |
| Effects of the Number of Steel Nails on Bending Mechanical Properties of Pallets |
| 投稿时间：2021-08-11 |
| DOI：10.19554/j.cnki.1001-3563.2022.01.018 |
| 中文关键词: 钢钉数量 托盘 抗弯强度 有限元分析 弯曲变形 |
| 英文关键词: number of steel nails pallets bending strength finite element analysis bending deformation |
| 基金项目:国家自然科学基金(51575327);陕西省教育厅重点实验室及基地项目(16JS014);陕西省教育厅2014陕西本科高校专业综合改革试点子项目(陕教高[2014]16号) |
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| 中文摘要: |
| 目的 确定能够满足托盘安全使用需求时的钢钉数量。方法 通过Iron CAD三维建模软件建立不同钢钉数量的托盘模型。利用Ansys Workbench软件对1—5颗钢钉数量的托盘进行有限元仿真分析，再通过托盘抗弯强度试验，得到其实际变形量，并对有限元结果与试验结果进行对比分析。结果 在3.5 kN载荷下，托盘的最大弯曲变形在不断减小。有限元结果表明，托盘最大变形量1颗钉为48.624 mm，2颗钉为46.139 mm，3颗钉为38.740 mm，4颗钉为25.280 mm，5颗钉为22.899 mm。试验结果表明，托盘最大变形量1颗钉为46.654 mm，2颗钉为43.572 mm，3颗钉为36.344 mm，4颗钉为30.697 mm，5颗钉为27.273 mm。试验结果与有限元结果趋势相同，验证了仿真的可靠性。结论 随着钢钉数量的不断增多，胶合板托盘的抗弯能力在不断增强，当钢钉数量达到4颗后，即可满足托盘的安全使用需求。 |
| 英文摘要: |
| The work aims to determine the number of steel nails that can meet the needs of safe use requirements of pallets. Pallet models with different numbers of steel nails were established through Iron CAD three-dimensional modeling software. Ansys Workbench software was used to perform finite element simulation analysis on a pallet with 1-5 steel nails. Then, a bending strength test of the pallet was conducted to obtain its actual deformation and compare the finite element results with the test results. Under the load of 3.5 kN, the maximum bending deformation of the pallet was continuously reduced. Finite element results:the maximum deformation of pallet with a nail tray was 48.624 mm, 2 nails was 46.139 mm, 3 nails was 38.740 mm, 4 nails was 25.280 mm, and 5 nails was 22.899 mm. Test results:the maximum deformation of pallet with 1 nail was 46.654 mm, 2 nails was 43.572 mm, 3 nails was 36.344 mm, 4 nails was 30.697 mm, and 5 nails was 27.273 mm. The test results had the same trend as the finite element results, verifying the reliability of the simulation. With the continuous increase in the number of steel nails, the bending resistance of plywood pallets is continuously enhanced. When the number of steel nails reaches 4, the safe use requirement of the pallet can be met. |
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