噪声与振动控制2025，Vol.45Issue(6)：40-45,51,7.DOI:10.3969/j.issn.1006-1355.2025.06.007
非平稳路面激励下车辆-堆码货物耦合系统响应分析
Response Analysis of the Vehicle-stacked Cargo Coupling Systems under Non-stationary Road Excitation
摘要
Abstract
Cargo often exists in the form of stacking in the process of logistics transportation.To obtain the response of stacked goods under the random vibration of logistics,a 19-DOF vehicle-stacked cargo coupling model was established.According to the statistical characteristics of the actual road and considering the random road obstacles,the system response under the non-stationary road excitation was obtained.The results show that the peak frequency of the vehicle response is mainly in 1-3 Hz and 10-20 Hz,close to the measured peak frequency of the vehicle response.With the increase of the stiffness of the upper layer cargo,the response of the upper layer cargo decreases,while the response of the lower layer cargo gradually increases,and the acceleration root mean square(Grms)of the response of the two layers of cargo gradually approaches.Under the same excitation,the response of the upper layer cargo Grms is larger than that of the lower layer cargo.When the mass ratio of two layers of cargo is greater than 0.6,the response of the upper layer cargo to roll and pitch is larger,and the stability of the stacked cargo is poor.When the mass ratio of the two layers of cargo is less than 0.6 and the rigidity ratio of the two layers of cargo is larger than 0.8,the stability of cargo stacked by the two layers of cargo is the best.The research results provide a reference for the design of transportation package of stacked cargo.关键词
振动与波/非平稳/加速度响应/车辆货物耦合系统/堆码货物Key words
vibration and wave/non-stationary/acceleration response/vehicle-cargo coupling/stacked cargo分类
交通工程引用本文复制引用
欧阳日上,王志伟..非平稳路面激励下车辆-堆码货物耦合系统响应分析[J].噪声与振动控制,2025,45(6):40-45,51,7.基金项目
国家自然科学基金资助项目(50775100) （50775100）
