基于动态稳定性的高铁快递搬运车参数设计

Parameter design of high-speed rail express truck based on dynamic stability

针对我国目前高铁快递在站内的人工搬运作业效率较低的问题,结合高铁站内的通道特点提出采用动态稳定性算法对高铁快递搬运车的初速度可行范围进行逐步确定。首先根据质心位置的变化规律确定搬运车底部履带齿轮的半径大小,对快递搬运车在攀爬台阶过程中的单点、双点接触进行相应的受力分析,建立动态稳定性模型并利用MATLAB软件进行仿真。计算结果验证理论分析的正确性,为高铁快递搬运车的参数设计提供理论依据。

In view of the low processing efficiency of China’s high-speed rail express station,this paper combined the characteristic of the channel in the high-speed rail station to propose a dynamic stability algorithm to gradually determine the feasible range of the initial speed of the high-speed rail express truck.Firstly,according to the change rule of the position of the centroid,the radius of the track gear at the bottom of the truck was determined.Then according to the physics related knowledge,the corresponding force analysis of the single-point and double-point contact of the crawler truck during the climbing step was carried out.Finally,a dynamic stability model was established and MATLAB software was used for simulation processing.The calculation results verify the correctness of the theoretical analysis and provide a theoretical basis for the performance design of the high-speed rail express delivery truck.