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一、知识背景众所周知,在考虑运输包装及实施缓冲结构设计时,无论应用五步法、六步法或其他方法时,其前提条件之一就是已知这个产品的脆值(或易损度)。按照运输包装的理论基础——包装动力学的论述,脆值指的是产品不发生物理损伤或功能失效所能承受的最大加速度。它通常用一个无因次量G值表示,G值指的是允许好产品上所能承受的最大加速度与当地重力加速度之比。目前,英、美、日等国都在各自有关标准或产品运输手册上列出了多类产品的G值范围。根据上述包装动力学中脆值概念可知,它表示了某一类产品的破损极限,一超过这个极限
First, the knowledge background As we all know, consider the transport packaging and the implementation of the buffer structure design, regardless of the application of five-step method, six-step method or other methods, one of the prerequisites is that the product is known brittleness (or vulnerability) . According to the theoretical basis of transport packaging - packaging dynamics discussion, the fragile value refers to the product does not occur physical damage or failure can withstand the maximum acceleration. It is usually expressed as a dimensionless amount of G, which is the ratio of the maximum acceleration allowed to a good product to the local gravitational acceleration. Currently, Britain, the United States, Japan and other countries have listed in their respective standards or product transport manuals G value range of many types of products. According to the above concept of fragility in packaging dynamics, we can see that it represents the damage limit of a certain type of product. Once this limit is exceeded