运输包装系统随机振动频域分析

为了研究包装件在实际流通环境振动特性下的振动规律,以车辆、包装件构成的六自由度运输包装系统为基础,构建了在以白噪声为输入的路面不平激励下的振动模型,建立了路面不平激励的数学模型、运输车辆以及包装件的动力学模型。借助Matlab/Simulink仿真技术,对运输包装系统随机振动进行了频域分析,得到了内装产品及易损零件随机振动加速度响应的幅值频谱和功率谱密度。仿真结果表明了随机振动强弱程度与频率的关系,全面反映了随机振动规律,为缓冲包装设计提供了理论依据。

Random Vibration Frequency Domain Analysis of Transport Packaging System

In order to research the vibration regulation of package in the circulation environment,based on the 6DOF transport packaging system which was composed of vehicle and package,the vibration model with white noise for road irregular excitation was established.Mathematical model of road irregular excitation,dynamics models of vehicle and package were also established.With the Matlab/Simulink simulation techniques the random vibration frequency domain analysis of transport packaging system was carried out.The magnitude spectrum and power spectrum density of random vibration acceleration of product and fragile parts were obtained.The simulation results showed the relationship between random vibration strength and frequency and fully reflected the random vibration rules.The purpose was to provide theoretical basis for cushion packaging design.