宋卫生.能量吸收图法在蜂窝纸板中的应用[J].包装工程,2018,39(15):15-20.
SONG Wei-sheng.Application of Energy Absorption Diagram in Honeycomb Paperboard[J].Packaging Engineering,2018,39(15):15-20. |
| 能量吸收图法在蜂窝纸板中的应用 |
| Application of Energy Absorption Diagram in Honeycomb Paperboard |
| 投稿时间：2018-03-30 修订日期：2018-08-10 |
| DOI：10.19554/j.cnki.1001-3563.2018.15.003 |
| 中文关键词: 能量吸收图 肩点 最佳吸能点 屈服应力 蜂窝纸板 |
| 英文关键词: energy absorption diagram shoulder point the best energy absorption point yield stress honeycomb paperboard |
| 基金项目: |
|
| 摘要点击次数: |
| 全文下载次数: |
| 中文摘要: |
| 目的 研究能量吸收图法在蜂窝纸板中可行的应用方法。方法 通过以肩部包络线构成能量吸收图的方法和以屈服对应点连线构成能量吸收图的方法对同一个算例进行分析，分别得到各自最佳的蜂窝纸板厚度和单层芯纸厚度。然后以产品的最大许用应力分别进行压缩，查看其压缩变形情况。采用跌落的方法查看其最大变形、产品动能的变化曲线、位移变化曲线和加速度变化曲线，以此来考查这 2 种方法的可行性。结果 通过肩点法得到优化结果，由于产品最大许用应力小于蜂窝板的屈服应力，蜂窝板无法通过层叠变形吸收产品的跌落冲击能量，使得产品响应加速度过大，进而发生破损。通过屈服对应点法得到优化结果，由于产品最大许用应力可以克服蜂窝板的屈服应力，使得蜂窝板可以变形吸能，并可以在达到产品最大许用应力前吸收完所有的能量，可以有效地保护产品。结论 文中所用的屈服对应点法在不考虑实际安全系数的基础上，将产品的最大许用应力对应于缓冲材料的屈服应力，所得的优化材料可以有效地对产品起到缓冲保护作用。 |
| 英文摘要: |
| The work aims to study the workable application method of energy absorption diagram in honeycomb paperboard. The same example was analyzed through the method of constructing the energy absorption diagram with the envelope of the shoulder and the method of forming energy absorption diagram by the connection of yield corresponding points. The best thickness of honeycomb cardboard and the thickness of single layer core paper were obtained respectively. Then, the two different honeycomb paperboards were compressed with the maximum allowable stress of the product and the compressive deformation was viewed. The maximum deformation mode, the variation curve of the kinetic energy of the product, the displacement curve and the acceleration change curve were also examined by the drop method. The feasibility of these two methods was examined through the aforesaid analysis and comparison. The optimization results were obtained by the method of shoulder point. Because the maximum allowable stress of the product was less than the yield stress of the honeycomb paperboard, the honeycomb paperboard could not be deformed to absorb energy of the product's drop impact, thus causing the product to be damaged due to the excessively large response acceleration of the product. The optimization results were obtained by the method of yield corresponding point. Because the maximum allowable stress of the product could overcome the yield stress of the honeycomb paperboard, so that the honeycomb paperboard could be deformed to absorb the energy, absorb all the energy before reaching the maximum allowable stress of the product and protect the product effectively. On the basis of not considering the actual safety factor, the proposed yield corresponding point method has the maximum allowable stress of the product corresponded to the yield stress of the cushioning material. The optimized material obtained can effectively protect the product from the buffering. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
渝公网安备 50010702501716号