红外镜头跌落冲击仿真及缓冲包装方法选择研究

PDF(1436 KB)

振动与冲击 ›› 2014, Vol. 33 ›› Issue (24) : 133-137.

论文

红外镜头跌落冲击仿真及缓冲包装方法选择研究

张云华1,2，李珊，刘冠玉1，陈骥2,李洪兵2

作者信息 +

Dropping simulation and the selection of cushion packaging method of infrared lens

ZHANG Yun-hua,1,2,LI Shan1, LIU Guan-yu1, CHEN Ji2,LI Hong-bing2

Author information +

文章历史 +

摘要

基于显式动力分析理论，对某款红外镜头及其包装件进行跌落仿真分析，提取镜头整体，大、小镜片在每个时刻的最大应力，在MATLAB中生成曲线，得出在初始时刻，大镜片上的应力大于小镜片上的，而在结束阶段，情况相反，从而引发了设计者对镜片安装处镜筒的壁厚设计的思考；以硬质PU泡沫作为此类红外镜头的缓冲包装，在保护产品抵抗冲击方面，采用局部缓冲优于全面缓冲。并将局部缓冲下大、小镜片中心点Z向加速度峰值与裸机的作比较，发现该缓冲方法对峰值的削弱效果非常明显。最后将局部缓冲包装件放入瓦楞纸箱进行跌落试验，且能通过。这种基于仿真的设计方法为红外产品结构设计及缓冲包装方法的选择提供了一种有效的研究手段。

Abstract

The dropping process of a infrared lens and its package are analysised based on Explicit dynamic analysis theory in the paper,the maximum stress of infrared lens,large lens and small lens are extracted in each moment and then the curve was generated in MATLAB,the stress of large lens was higher than small lens at the initial moment and at the end of the stage the result is opposite,so it set off thinking of the thickness design of barrel; The cushioning packaging of this infrared lens such as rigid polyurethane foam,partial cushion packaging is better than comprehensive cushion packaging in the protection of product. And compared with bare machine drops, it is obvious that the Z acceleration response of the lager and small lens center node when the partial cushion packaging drops is much lower than it. Finally, the partial cushion packaging was put into corrugated box for the drop test, and then through it. This simulation-based design approach provided an effective means for the structure design of the infrared product and selection of cushioning packaging method.

导出引用

张云华;李珊;刘冠玉;陈骥;李洪兵. 红外镜头跌落冲击仿真及缓冲包装方法选择研究[J]. 振动与冲击, 2014, 33(24): 133-137

ZHANG Yun-hua;;LI Shan;LIU Guan-yu;CHEN Ji;LI Hong-bing. Dropping simulation and the selection of cushion packaging method of infrared lens[J]. Journal of Vibration and Shock, 2014, 33(24): 133-137