宋卫生,于妞妞,薛阳,郭丹凤.发泡聚乙烯振动传递特性关系研究[J].包装工程,2022,43(5):152-158.
SONG Wei-sheng,YU Niu-niu,XUE Yang,GUO Dan-feng.Relationship Between Vibration Transmissibility of Expanded Polystyrene[J].Packaging Engineering,2022,43(5):152-158. |
| 发泡聚乙烯振动传递特性关系研究 |
| Relationship Between Vibration Transmissibility of Expanded Polystyrene |
| 投稿时间：2021-10-26 |
| DOI：10.19554/j.cnki.1001-3563.2022.05.021 |
| 中文关键词: 发泡缓冲材料 振动传递特性 振动传递率 频率 |
| 英文关键词: foam buffer material vibration transmission characteristics vibration transmissibility frequency |
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| 中文摘要: |
| 目的 研究使用常用设计变量快速获取发泡聚乙烯振动传递率-频率曲线最大峰值处频率以及振动传递率的方法，降低缓冲材料测试表征工作量。方法 首先设计等静应力实验，并通过理论分析和有限元仿真分析2种方法分别进行分析，明确变量，进而设计正交实验，在此基础上使用准牛顿法+通用全局优化法进行了公式拟合。结果 等静应力实验结果显示，不同砝码重量与接触面积组合利用有限元仿真分析所得峰值对应频率不变，但是峰值对应传递率会发生变化。砝码重量、砝码与缓冲材料接触面积以及缓冲材料厚度作为变量分别与频率、振动传递率拟合后的R2为0.996、0.951。结论 静应力不能单独作为振动传递率-频率曲线变化的影响因素。需要选择砝码重量、砝码与缓冲材料接触面积以及缓冲材料厚度3个因素作为振动传递率-频率曲线变化影响因素。这3个因素与峰值对应的频率以及振动传递率有较为明显的潜在规律。拟合所得公式可以提高设计效率，减少缓冲材料测试的工作量。 |
| 英文摘要: |
| The work aims to study the frequency and vibration transmissibility at the maximum peak of the vibration transmission rate frequency curve of foamed polyethylene quickly with common design variables to reduce the workload of testing and characterization of cushioning materials.Firstly, the constant static stress experiment was designed, the results were analyzed by theoretical analysis and finite element simulation analysis, and the variables were made clear. Then the orthogonal experiment was designed, and the formula fitting was carried out by using quasi Newton method and general global optimization method. The results of constant static stress experiment showed that the peak corresponding frequency obtained by finite element simulation analysis with different weight and contact area combination remained unchanged, but the peak corresponding transmissibility would change. The R2 of the weight, the contact area between the weight and the buffer material and the thickness of the buffer material fitted with the frequency and vibration transmissibility were 0.996 and 0.951 respectively.Static stress cannot be used as a single factor affecting the change of vibration transmissibility-frequency curve. It is necessary to select the weight, the contact area between the weight and the buffer material and the thickness of the buffer material as the influencing factors of the change of vibration transmissibility-frequency curve. The frequency and vibration transmissibility corresponding to the peak value have obvious potential laws with these three factors. The fitting formula can improve the design efficiency and reduce the workload of buffer material testing. |
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