The article Provides a dynamic model for belt conveyor. Based on the drive-force of conveyor, take-up tension of take-up assembly, gravity of conveyor belt and material, and friction between belt and idlers, it gives ...The article Provides a dynamic model for belt conveyor. Based on the drive-force of conveyor, take-up tension of take-up assembly, gravity of conveyor belt and material, and friction between belt and idlers, it gives a viscoelastic dynamic equation for conveyor belt. It presents a calculation method of analytic solution to both viscoelastic dynamic equation and geometric dynamic equation when automatic take-up assembly is applied to belt conveyor. The article also makes a study of design method of limiting and eliminating the conveyor belt's elastic vibration.展开更多
A nonlinear rotational motion model for n-pulley damped serpentine belt drive systems （SBDSs） was developed.The effects of the belt deflection along the contact arc of pulleys on the belt span tensions were consider...A nonlinear rotational motion model for n-pulley damped serpentine belt drive systems （SBDSs） was developed.The effects of the belt deflection along the contact arc of pulleys on the belt span tensions were considered.The methods for calculating the tensioner arm vibration and belt slipping on pulleys were introduced.The effects of belt damping on rotational vibration of tensioner arm and belt slipping on pulleys were studied.Numerical solutions for a 3-pulley SBDS indicate that the belt slipping at the steady states should be controlled to avoid belt slipping at transient states.The slip factors tend to decrease when the belt damping increases,and the possibility of the belt slipping can be controlled through adjusting the wrap angles of pulleys and the preload of the tensioner when the design parameters of SBDS remain constant.展开更多
Using tensile testing machine to test conveyor belt tensile specimen about EP300-3×( 2 + 1.5)( this kind of belt is material of polyurethane,the tensile strength is 300 N/mm,three layers,the upper layer’ s thick...Using tensile testing machine to test conveyor belt tensile specimen about EP300-3×( 2 + 1.5)( this kind of belt is material of polyurethane,the tensile strength is 300 N/mm,three layers,the upper layer’ s thickness is 2 mm,the lower layer’ s thickness is 1. 5 mm),and it can get this kind material mechanics experiment data,the experiment data is about stress-strain of conveyor belt,through taking experimental data into numerical simulation software,that is defined relevant calculation data of conveyor belt material properties,and then it can analyze three situations about the frame has four support plates,six plates or eight plates,this experiment can conclude the rules what is under the same tension,change of numbers and location of plates can influence the distribution and change of support force.展开更多
文摘The article Provides a dynamic model for belt conveyor. Based on the drive-force of conveyor, take-up tension of take-up assembly, gravity of conveyor belt and material, and friction between belt and idlers, it gives a viscoelastic dynamic equation for conveyor belt. It presents a calculation method of analytic solution to both viscoelastic dynamic equation and geometric dynamic equation when automatic take-up assembly is applied to belt conveyor. The article also makes a study of design method of limiting and eliminating the conveyor belt's elastic vibration.
基金Sponsored by the National Natural Science Foundation of China(50975091)Science Fund of State Key Laboratory of Automotive Safety and Energy(KF10162)
文摘A nonlinear rotational motion model for n-pulley damped serpentine belt drive systems （SBDSs） was developed.The effects of the belt deflection along the contact arc of pulleys on the belt span tensions were considered.The methods for calculating the tensioner arm vibration and belt slipping on pulleys were introduced.The effects of belt damping on rotational vibration of tensioner arm and belt slipping on pulleys were studied.Numerical solutions for a 3-pulley SBDS indicate that the belt slipping at the steady states should be controlled to avoid belt slipping at transient states.The slip factors tend to decrease when the belt damping increases,and the possibility of the belt slipping can be controlled through adjusting the wrap angles of pulleys and the preload of the tensioner when the design parameters of SBDS remain constant.
文摘Using tensile testing machine to test conveyor belt tensile specimen about EP300-3×( 2 + 1.5)( this kind of belt is material of polyurethane,the tensile strength is 300 N/mm,three layers,the upper layer’ s thickness is 2 mm,the lower layer’ s thickness is 1. 5 mm),and it can get this kind material mechanics experiment data,the experiment data is about stress-strain of conveyor belt,through taking experimental data into numerical simulation software,that is defined relevant calculation data of conveyor belt material properties,and then it can analyze three situations about the frame has four support plates,six plates or eight plates,this experiment can conclude the rules what is under the same tension,change of numbers and location of plates can influence the distribution and change of support force.
