摘要
研究了疲劳压缩条件下,蜂窝纸板内共振条件的参数变化规律。首先,对预压缩后的蜂窝纸板进行不同次数疲劳压缩,接着进行准静态压缩,最后将得到的应力-应变曲线多项式拟合后得到蜂窝纸板本构模型参数值。利用变分迭代法得到单自由度和二自由度蜂窝纸板内共振条件,最后由本构模型参数计算得到内共振条件参数的变化规律。该结果对避免蜂窝纸板缓冲包装设计内共振的产生具有一定意义。
The variation of inner-resonance condition parameters of a honeycomb paperboard system was studied under fatigue compression.Firstly,the pre-compressed honeycomb paperboards were tested with different numbers of fatigue compression.Then,they were tested with quasi-static compression.The obtained stress-strain curves were fitted with polynomials to gain parameters of honeycomb paperboard's constitutive model.The inner-resonance conditions of a singleDOF honeycomb paperboard system and a 2-DOF one were acquired with the variational iteration method.Finally,the varying laws of the two systems' inner-resonance condition parameters were obtained through calculations of parameters of honeycomb paperboard's constitutive model.The results were significant to avoid inner-resonances during honeycomb paperboard cushion packaging design.
出处
《振动与冲击》
EI
CSCD
北大核心
2016年第11期203-207,共5页
Journal of Vibration and Shock
关键词
蜂窝纸板
疲劳
本构模型
内共振
honeycomb paperboard
fatigue
constitutive model
inner-resonance
