条烟配送系统动力学建模及影响因素研究

Dynamics Modeling and Influential Factor Study of Cigarette Distribution System

烟草二次配送运输系统中,装有条烟的金属笼车、缓冲包装物、运载汽车、路面组成了一个复杂的动力学系统。以该系统的动力学仿真和笼车的可靠性为研究内容,利用刚柔耦合理论来建立系统模型。同时以随机输入和脉冲激励来模拟实际路面,进行运输平顺性仿真分析。通过分析主副笼加速度变化曲线,得出同一路况不同车速下运输的平顺性差别;同时通过分析主副笼加速度功率谱密度曲线,得出货物受到振动的能量主要集中频率区间,可为车身的设计和最高车速的限制提供数据支持。

In the cigarette secondary distribution transportation system, the cage vehicle, the cushion package, the carrying vehicle and the road form of a complicate dynamics system. With dynamic modeling of the complicate system and reliability of the cage vehicle as research contents, sets up a system model by using the rigid-flexible coupling theory.Meanwhile uses the random input and impulse excitation to simulate the actual road and simulates the transportation smoothness. By analyzing changing curves of the acceleration of main cage and auxiliary cage, obtains the transport smoothness difference at different speeds under the same road condition, and through analyzing the acceleration power spectral density curve, obtains the main concentration frequency range of the vibration energy of the goods. It provides data support for the vehicle body design and maximum speed limit.