Cushioning Packaging Optimal Design Of 1522 Infrared Lens Based On HyperWorks

In general, the vibration and impact in transportation may cause the damage.The cushioning packaging may reduce the shock delivered to products and the vibration to an accepted range, and thus the product can be protected.Because of such problems as random impulsive loads and limited dynamics parameters in terms of the packaging structural design,the domestic cushioning packaging infrared products design is primarily dependent on empirical data. There is no criterion to guide the design, and the structure would not be the optimum state owing to the different experience of engineers. Especially in the development of new products, the problems of strength may result in the increased number of damaged products and high handling cost.A transport package of 1522infrared lens from a company is taken as the research object in the paper. First, two kinds of improved packaging methods, namely local cushion packaging and local cushion packaging with foot pads, are conducted on the basis of the original comprehensive cushion packaging. Using the large general pretreatment software HYPERMESH and the solver named LS-DYNA, three groups of simulations about fall and collision are conducted. The three groups are 1522infrared lens packaging with different cushion packaging structure. Through analyzing the trend of the maximum equivalent stress on the unit of each part when the infrared lens hitting the ground within 0.006 second, we get the optimal cushion packaging structure, that is the local cushion packaging with foot pads. Second, the packaging liner of the optimal packaging structure has been improved on the shape and size. And the simulation about fall and collision of the improved cushion packaging are conducted. After the first improvement and the second improvement, it concludes that the cushion packaging model after second improvement is the best model.Further, optimization of the shape of the cushion packaging is conducted, so as to protect the infrared lens during the drop process with the least amount of cushion packaging material. In detail, in the process of optimization, the quality of the cushion packaging is set as the objective function; yield strength of the most dangerous part as the constraint, the shape and size of the cushion packaging as the design variables.The paper aims to find a reasonable cushion packaging structure for the designers through a kind of aided tool to reduce the packaging cost, improve the quality of packaging, to protect the product from broken during the transport process.At the same time, It provide the reference for other types of infrared lens and Similar products.