预压缩气垫包装系统静力及动力学特性研究  

Static and Dynamic Characteristics of Pre-compression Air Cushion Packaging System

作　　者：李广利[1,2] 李玲 张滔 卞强 王栋彬[1] 刘新丽 LI Guangli;LI Ling;ZHANG Tao;BIAN Qiang;WHANG Dongbin;LIU Xinli(Astronaut Center of China,Beijing 100094,China;National Key Laboratory of Human Factors Engineering,Beijing 100094,China)

机构地区：[1]中国航天员科研训练中心,北京100094 [2]人因工程全国重点实验室,北京100094

出　　处：《包装工程》2024年第1期290-298,共9页Packaging Engineering

基　　金：人因工程全国重点实验室基金(6142222210901)。

摘　　要：目的以柱形气垫包装系统为研究对象,建立静力及动力学模型,对静态压缩、自由振动和基础激励受迫振动特性进行研究。方法建立气柱压缩力数学模型,并通过试验、仿真验证模型,通过建立预压缩柱形气垫包装系统力学模型,研究静力及动力学特性。结果预压缩量和充气压力越大,包装系统固有频率越高。在包装对象宽度定值约束下,选取多个小直径气柱,固有频率更高,且薄膜应力更小。在基础激励下,包装系统固有频率处存在共振峰值,对高频域气垫表现出了较好的减振特性。结论所建立的静力压缩模型与试验、仿真结果较吻合,所建立的动力学模型合理,结果准确。The work aims to establish a static and dynamic model with a cylindrical air cushion packaging system as the research object,to study the characteristics of static compression,free vibration and forced vibration under foundation excitation.A mathematical model for the compression force of the air cushion was established and verified through experiments and simulations.By establishing a mechanical model of a pre-compression cylindrical air cushion packaging system,the static and dynamic characteristics were studied.The dynamic analysis of the packaging system showed that the higher the pre-compression and inflation pressure,the higher the natural frequency of the packaging system.Under the constraint of the fixed width of the packaging object,selecting multiple small diameter air cushion resulted in higher natural frequencies and lower Von-mises stress.Under the foundation excitation,there was a resonance peak at the natural frequency of the packaging system,which showed a good vibration reduction characteristics for air cushion in the high frequency domain.The static compression model established is in good agreement with the experimental and simulation results.The dynamic model established is reasonable and accurate.

关 键 词：柱形气垫 预压缩模型 动力学模型 动力学特性 

分 类 号：TB485.1[一般工业技术—包装工程] TB485.2