摘要
空投物资方式越来越多地应用于救灾等紧急情况,为使物资安全着陆,往往是通过大量的外场试验来模拟实际情况,根据试验结果逐步调整和改进货物的包装。这种方法会耗费大量的时间和成本。在建立货物缓冲垫平台的空投物资模型的基础上,利用计算机仿真货物与地面冲击的过程,分析缓冲垫厚度、材料属性对最大加速度和冲击持续时间的影响,并根据仿真数据建立了相关变量间的经验公式,以有效地指导实际的外场试验,从而节约时间和成本。
Cargo airdropping is more and more frequently used in emergency. To ensure the safe landing of cargo, many simulated tests axe required before packaging can be improved. However, it is time - consuming and costly. The purpose of this research was to provide guidelines for field experiments, and ac- cordingly reduces the time and the cost. The airdropping model of cargo - cushion - platform was established to simulate the process of cargo impacting ground, and analyze the effects of cushion thickness and material properties on peak acceleration and pulse duration. Empirical relationships were developed to determine the influence of different design parameters on the peak acceleration and pulse duration.
出处
《包装工程》
CAS
CSCD
北大核心
2006年第2期70-72,共3页
Packaging Engineering
关键词
冲击
缓冲
仿真
空投
impact
cushion
simulation
airdropping
