粮仓螺旋机器人螺杆推力模型构建与实验验证

目的:构建更加精确的粮仓螺杆推力模型.方法:利用数理模型进行建模,结合Janssen储粮压力理论和Janosi剪切—位移方程,建立剪切应力模型,并由剪切应力模型推导出螺杆的推力模型.通过设计并搭建试验装置,采用不同转速和压力组合进行全因素试验,将测得的试验数据与理论值进行对比.结果:推力模型理论值与试验值接近,曲线变化趋势相同,轴向推力模型平均相对误差为14％,阻力转矩模型平均相对误差为24％.结论:结合Janssen储粮压力理论和Janosi剪切—位移方程提出的不同深度下螺杆推力模型具有较高的可靠性....

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Published in	食品与机械 Vol. 40; no. 2; pp. 84 - 90
Main Authors	赵险峰, 尹强, 余俊鹏, 杨柳, 张永林
Format	Journal Article
Language	Chinese
Published	武汉轻工大学机械工程学院,湖北武汉 430023 01.02.2024
Subjects	granary screw spiral robot 运动学 kinematics 粮仓 thrust model 螺杆螺旋机器人推力模型
Online Access	Get full text
ISSN	1003-5788
DOI	10.13652/j.spjx.1003.5788.2023.80695

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Abstract	目的:构建更加精确的粮仓螺杆推力模型.方法:利用数理模型进行建模,结合Janssen储粮压力理论和Janosi剪切—位移方程,建立剪切应力模型,并由剪切应力模型推导出螺杆的推力模型.通过设计并搭建试验装置,采用不同转速和压力组合进行全因素试验,将测得的试验数据与理论值进行对比.结果:推力模型理论值与试验值接近,曲线变化趋势相同,轴向推力模型平均相对误差为14％,阻力转矩模型平均相对误差为24％.结论:结合Janssen储粮压力理论和Janosi剪切—位移方程提出的不同深度下螺杆推力模型具有较高的可靠性.
AbstractList	目的:构建更加精确的粮仓螺杆推力模型.方法:利用数理模型进行建模,结合Janssen储粮压力理论和Janosi剪切—位移方程,建立剪切应力模型,并由剪切应力模型推导出螺杆的推力模型.通过设计并搭建试验装置,采用不同转速和压力组合进行全因素试验,将测得的试验数据与理论值进行对比.结果:推力模型理论值与试验值接近,曲线变化趋势相同,轴向推力模型平均相对误差为14％,阻力转矩模型平均相对误差为24％.结论:结合Janssen储粮压力理论和Janosi剪切—位移方程提出的不同深度下螺杆推力模型具有较高的可靠性.
Abstract_FL	Objective:To clarify the interaction mechanism model between screw and grain in grain pile depth,and to determine the mechanical characteristics of screw of spiral robot for granary at different speeds and depths,so as to provide the design basis for the motion control system.Methods:Using mathematical model,combining Janssen grain storage pressure theory and Janosi shear-displacement equation,the shear stress model was established,and then the thrust model of screw was derived from the shear stress model.Through the design and construction of the experimental device,the combination of different speed and pressure was used to carry out the all-factor experiment,and the measured experimental data was compared with the theoretical value.Results:The theoretical value of the thrust model was close to the experimental value,and the curve variation trend was the same.The average relative error of the axial thrust model was 14％,and the average relative error of the resistance torque model was 24％.Conclusion:The screw thrust model based on Janssen grain storage pressure theory and Janosi shear-displacement equation at different depths has high reliability.
Author	赵险峰尹强余俊鹏张永林杨柳
AuthorAffiliation	武汉轻工大学机械工程学院,湖北武汉 430023
AuthorAffiliation_xml	– name: 武汉轻工大学机械工程学院,湖北武汉 430023
Author_FL	YU Junpeng YIN Qiang ZHANG Yonglin ZHAO Xianfeng YANG Liu
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