随机振动下蜂窝纸板振动传递特性分析

从理论上推导了随机振动条件下振动传递率的计算公式;试验研究了蜂窝纸板在不同加速度、频率和应力的随机振动下的振动传递特性,得到了振动传递率曲线和峰值频率。不同随机振动试验计算出的振动传递率几乎相同,与正弦扫频试验结果非常接近。这表明了利用随机振动试验分析蜂窝纸板的振动传递率是可行的,为蜂窝纸板缓冲包装设计提供了基本数据。

Vibration Transmissibility Properties of Honeycomb Paperboard under Random Vibration

Vibration transmissibility formula under random vibration was derived theoretically. Vibration transmissibility properties of honeycomb paperboard under random vibration of different acceleration, frequency and stress were tested; the vibration transmissibility curves and peak frequencies were obtained. The result showed that the vibration transmissibility from different random vibration tests is much the same and very close to the result of sine sweep test. It was concluded that using random vibration test to analyze the vibration transmissibility of honeycomb paperboard is feasible.