实测数据与理论模型驱动的Adams-EDEM耦合仿真挖掘阻力研究  

RESEARCH ON EXCAVATION RESISTANCE OF ADAMS-EDEM COUPLING SIMULATION DRIVEN BY MEASURED DATA AND THEORETICAL MODEL

作　　者：吴迪 王神龙 李官运 丁晓红[1] 余慧杰[1] 倪维宇[1] WU Di;WANG ShenLong;LI GuanYun;DING XiaoHong;YU HuiJie;NI WeiYu(School of Mechanical Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China;SANY Heavy Machinery Co.,Ltd.,Kunshan 215300,China)

机构地区：[1]上海理工大学机械工程学院,上海200093 [2]三一重机有限公司,昆山215300

出　　处：《机械强度》2023年第2期341-349,共9页Journal of Mechanical Strength

基　　金：国家自然科学基金面上项目(12172226)资助。

摘　　要：面向矿山机械智能化环境下设备性能优化的需求,建立了具有广泛适用性的挖掘机挖掘阻力求解模型,使其同时具备高效性和准确性。基于达朗贝尔原理建立挖掘阻力理论方程并求解,利用动力学仿真验证其准确性。以理论结果标定出精确土壤参数,通过Adams-EDEM耦合驱动构建仿真模型,得到挖掘阻力精确解,并用实测应力数据验证该方法的精度。此外,还分析了不同土壤参数对仿真挖掘阻力的影响。结果表明,与传统的理论方程相比,建立的求解模型在精度和计算效率方面具有优势;以理论模型输出的挖掘阻力作为标准修正仿真土壤模型,修正后仿真模型输出的应力与实测应力吻合,验证了所提出方法的准确性;为复杂土壤的参数标定及精确土壤模型的建立提供了重要依据。To meet the requirements of equipment performance optimization in the intelligent environment of mining machinery,a solution model of excavator resistance with wide applicability is established,which made the solution model of excavation resistance have high efficiency and accuracy.The theoretical equation of excavation force is established and solved based on d′Alembert′s principle,and its accuracy is verified by dynamic simulation.The precise soil parameters are calibrated with theoretical results,and a simulation model is constructed by coupling drive of Adams-EDEM to obtain the precise solution of excavation resistance.The accuracy of the method is verified by the measured stress.In addition,the influence of different soil parameters on simulated excavation resistance is analyzed.The results show that compared with the traditional theoretical equation,the proposed model has advantages in precision and computational efficiency.The excavation resistance output from the theoretical model is used as the standard to modify the simulated soil model.The stress output from the modified simulation model is consistent with the measured stress,which verified the accuracy of the proposed method.This method provides an important basis for the calibration of complex soil parameters and the establishment of accurate soil model.

关 键 词：挖掘阻力 EDEM 耦合仿真 土壤模型 数据驱动 

分 类 号：TU621[建筑科学—建筑技术科学]