凹槽结构对矿泉水瓶力学性能的影响

Effect of Groove Structure on Mechanical Properties of Mineral Water Bottle

中文关键词: 凹槽结构  矿泉水瓶  轴压  侧压  有限元

英文关键词: groove structure  mineral water bottle  axial compression  lateral compression  finite element

中文摘要:

      目的 研究矿泉水瓶上凹槽结构对瓶体轴压性能和侧压性能的影响。方法 以常见的市售矿泉水瓶子为研究对象， 在Ansys经典中对不同凹槽个数、 不同凹槽高度、 不同凹槽深度的研究试样和设备模型分开建模， 利用有限元显示算法在给定的压力载荷进行轴压和侧压的过程模拟与分析。并通过实际的试验与有限元模拟结果进行了对比。结果 随着凹槽数量的增加、 凹槽高度的增加以及凹槽深度的增加， 瓶体的轴压性能都会受到损失， 但是随着凹槽数量和高度的增加， 瓶体的侧压性能会显著提高， 不过， 凹槽深度的增加则会使瓶体的侧压性能受到损失。结论 在进行凹槽结构设计时， 尽量减少凹槽的数量， 并减小凹槽的深度， 可以较为灵活地设计凹槽的高度。一方面考虑侧压性能要满足消费者抓握时的强度需求， 同时也要考虑轴压性能必须满足国标要求， 以免对瓶体的堆码性能造成影响。

英文摘要:

      This work was aimed to study the influence of the groove structure of mineral water bottle on the axial compression and lateral compression performance of the bottle. The common market mineral water bottle was selected as the research object, the test specimens and equipment models with different groove numbers, different groove heights and different groove depths were separately modeled in Ansys, and the processes of axial and lateral compression under given loads were simulated and analyzed via finite element explicit algorithm. The result from actual test was compared with that from the finite element simulation. The axis compression properties of the bottle decreased with the increase of the number, height and depth of the grooves. But the lateral compression properties of the bottle increased with the increase of the number, height of the grooves, and decreased with the increase of the depth of the grooves. When we design the groove structure for the bottle, we should reduce the number and depth of the groove as far as possible, and we can design the height relatively more flexibly. In brief, we should consider the needs of lateral compression properties to meet the strength for consumer′ s need of grasping, and also should consider the axial compression performance to meet the requirement of the national standard in order to reduce the influence on the stacking performance of the bottle.