Acquiring data and measuring positions should be predetermined for data acquisition experiments, while numerical simulation provides effective guidance. Because bulldozing involves multibody dynamics, soil mechanics and hydraulic control, a high-fidelity simulation approach should be developed to cover these fields. This paper proposes a RecurDyn-EDEM-AMESim co-simulation which accurately characterizes the working loads in straight bulldozing conditions. According to the relationship between the soil reaction loads and joint forces of the dozer blade, the strain of the push arms and the oil pressure of the lift cylinders were selected to represent the longitudinal and vertical soil loads, respectively. This research facilitates the decision-making for the data acquisition experiments of dozers, and proposes one simulation-based approach to evaluate the working loads of the construction machinery. The RecurDyn-EDEM-AMESim co-simulation has promising potential to acquire load data in the situations where physical experiments are difficult to conduct.

数据采集​​实验应预先确定采集数据和测量位置，数值模拟提供有效指导。由于推土机涉及多体动力学、土壤力学和液压控制，因此应开发一种高保真模拟方法来覆盖这些领域。本文提出了一种 RecurDyn-EDEM-AMESim 联合仿真，可准确表征直线推土条件下的工作载荷。根据土体反作用载荷与推土铲联合力的关系，选取推臂应变和举升油缸油压分别代表纵向和竖向土体载荷。本研究有助于推土机数据采集实验的决策制定，并提出了一种基于仿真的方法来评估工程机械的工作负荷。RecurDyn-EDEM-AMESim 联合仿真具有在物理实验难以进行的情况下获取负载数据的潜力。