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基于动力学理论的微观行人仿真模型对行人运动细节描述深入,具有良好的仿真效果,但是现有模型对于高密度条件下的行人力学关系描述尚不完善,且在仿真时存在运算效率较低的问题。基于颗粒流与行人流的相似特性,利用离散元在分析和求解复杂离散系统动力学问题上的高效算法优势,在详细分析行人受力的基础上建立基于颗粒理论的微观行人动力学模型,并采用离散元法专业分析平台(PFC2D)对枢纽通道内的行人流进行仿真,结果发现模型能真实反映不同密度条件下的行人运动特性,基本参数关系及基本图较好地符合行人宏观运动规律,证明了所建模型的有效性及合理性。
The micro-pedestrian simulation model based on the dynamics theory has described the details of the pedestrian movement in detail and has good simulation results. However, the existing models have not been well described for the pedestrian relationships under high-density conditions and have low computational efficiency problem. Based on the similar characteristics of particle flow and pedestrian flow, a microscopic pedestrian dynamics model based on particle theory is established based on the detailed analysis of pedestrian force using the advantage of efficient algorithm of discrete element in analyzing and solving complex discrete system dynamics. The PFC2D is used to simulate the pedestrian flow in the hub passage. The results show that the model can truly reflect the pedestrian movement under different densities. The basic parameters and the basic parameters are in good agreement with the pedestrian ’s macro motion, It proves the validity and rationality of the model.