Dropping Impact Dynamics Research Of Portable Infrared Camera Packaging

Dropping impact of products occurs in the process of the circulation,warehouse stacking and use, and it is the first major culprit cause of product damage. Research on practical problems in production is done as follows.First, in this paper, using the ANSYS/LS-DYNA drop simulation analysis based on the basic theory of explicit dynamic analysis, the entire dropping process of portable infrared camera packaging are analysed.The infrared lens and its packaging of portable infrared camera are studied in this paper, drop simulation in1000mm are analysed,and then a comparation between comprehensive cushion and partial cushion packaging was conducted. The process of infrared lens and its package hiting the ground are analysed, and the later how the trend of maximum effective stress change in0.003s are analysed.The feasibility of simulation design method and the selection of cushion package method were verified through a simple drop test. That it is surely feasible for this infrared lens to use partial cushion packaging method and low density rigid polyurethane foam was proved againSeven typical drop posture simulation of infrared camera are analysed using ANSYS/LS-DYNA, the maximum effective stress and strain related to time of portable infrared camera and its key components were obtained in this paper. By doing this, the most dangerous drop posture and drop posture with smallest loss of portable infrared camera bare machine was easy to observe, so the losses which are caused by dropping impact was reduced to a minimum in the process of the circulation and use.The paper goes further for portable infrared camera packaging. The surface drop simulation of portable infrared camera packaging of five different cushion were conducted. The structure of cushion pad with best performance was obtained. Cushion packaging method, whether obtaining corner pad or not, pad height and pad width put effect on overall cushioning performance of portable infrared camera packaging were also studied when using low density rigid polyurethane as cushion material. Dynamic response of the infrared camera packaging on face dropping,edge dropping and concer dropping were studied.The most dangerous drop posture of portable infrared camera packaging was obtained to instruct packaging handing.At the end of this paper,the dynamic response results of portable infrared camera packaging in different drop posture (face,edge and corner drop) and different height are compared for further analysis. After comprehensive analysis,the maximum safe height of each drop posture was obtained, the maximum height data of packaging was also obtained, and it is helpful for product transportation and warehouse stacking.