缓冲防护材料计算机辅助优化设计系统

COMPUTER AIDED DESIGN SYSTEM OF CUSHIONING MATERIALS

在航空、建筑、汽车、交通运输和包装等领域的缓冲防护中进行缓冲材料优化设计时,采用产品缓冲包装设计中通用的方法(国标GB8166-87,缓冲系数C与最大应力σm曲线法、最大加速度Gm与静应力sσ曲线法)存在很多明显的缺陷。作者将国际上最新使用的基于能量吸收图法的缓冲防护设计技术应用于缓冲防护材料优化设计中,并采用计算机进行了辅助设计。为此,首先分析了缓冲防护材料计算机辅助设计系统的需求、功能和模块组成;而后对系统进行了详细设计,重点设计和实现了缓冲防护材料能量吸收图生成与优化设计两大功能模块;最后利用所开发的系统对常见的缓冲防护设计问题进行了实例求解,并将计算结果与国标中的计算结果做了对比分析。对比分析和跌落实验证明能量吸收图法不仅克服了传统方法的弊端,能够满足缓冲防护设计要求,而且该方法的设计结果更有效利用了缓冲防护材料的缓冲性能。

The methods （C-σm curve and Gm-σs curve） that are adopted from the Chinese standard （GB8166-87） and used for the cushioning material design in voyage, architecture, automobile, transportation, and package fields have many shortcomings. The novel cushioning defense technique - energy absorption diagram method and computer aided technique were adapted to optimization design of cushioning materials in this paper. For this purpose, in the paper the demand, functions and modules of the computer aided design system of cushioning materials were analyzed. Then the system was designed particularly, and the energy absorption diagram production and optimization modules were mainly designed and realized. Finally some common examples on cushioning package design were computed with the final system and the results from the final system and the methods in GB8166-87 were analyzed in contrast. The analysis and drop experiments on the designs according to the energy absorption diagram method proved that it is more reliable, better and efficient for this method to be used in the cushioning material optimization design than the methods in national standard GB8166-87.