scholarly journals Research on Segmented Belt Acceleration Curve Based on Automated Mechanical Transmission

Processes ◽  
2022 ◽  
Vol 10 (1) ◽  
pp. 106
Author(s):  
Yunxia Li ◽  
Lei Li
Keyword(s):  
Simulation Model ◽  
System Modeling ◽  
Angular Acceleration ◽  
Mechanical Transmission ◽  
Belt Conveyor ◽  
Medium Scale ◽  
Soft Starter ◽  
Simulation Results ◽  
Belt Conveyors ◽  
Starting Process

An automated mechanical transmission (AMT) is proposed as a new soft starter for medium-scale belt conveyors in this paper. The AMT is used to start the belt conveyor and shift gears step by step to make the belt conveyor accelerate softly. Based on analyzing common soft-starting acceleration curves, a segmented belt acceleration curve is proposed as a new soft-starting acceleration curve. By analyzing the AMT soft-starting system, the system modeling is built and the AMT output shaft’s angular acceleration is proposed to be controlled to control the belt acceleration. The AMT soft-starting simulation model is established in the environment of AMESim, and simulation results of the soft-starting process from the first to eighth gear positions are given. The main parameter curves of the AMT soft-starting system including the belt, driving pulley, and AMT output shaft are analyzed. The simulation model can indicate the viscoelastic property of the belt. The simulation results prove that the segmented belt acceleration is appropriate for a medium-scale belt conveyor and provide a theoretical and reasonable basis for using an AMT as a soft starter.

scholarly journals AMT Starting Control as a Soft Starter Using a Novel Data-Driven Method

2021 ◽  
Author(s):  
Yunxia Li
Keyword(s):  
Tracking Error ◽  
Angular Acceleration ◽  
Data Driven ◽  
Mechanical Transmission ◽  
Modified Model ◽  
Model Free ◽  
Novel Approach ◽  
Soft Starter ◽  
Belt Conveyors

Abstract To improve the starting quality of automated mechanical transmission (AMT) as a soft starter for belt conveyors, a novel data-driven method is proposed. By analyzing the common soft-starting acceleration curves, a segmented acceleration curve is proposed as the soft-starting acceleration curve for AMT. A modified model free adaptive control (MFAC) method with jerk compensation is proposed as a data-driven method to control the AMT output shaft’s angular acceleration, which consists of a MFAC algorithm and a jerk compensation algorithm. Simulation comparisons are analyzed between the modified MFAC method with jerk compensation, the prototype MFAC method, and the proportion integration differentiation (PID) method. Results indicate better control of the modified MFAC method with jerk compensation on the AMT output shaft’s angular acceleration than the other two methods. It also has excellent properties of small tracking error and small shock, providing a novel approach for AMT as a soft starter.

scholarly journals AMT Starting Control as a Soft Starter for Belt Conveyors Using a Data-Driven Method

Symmetry ◽  
2021 ◽  
Vol 13 (10) ◽  
pp. 1808
Author(s):  
Yunxia Li ◽  
Lei Li ◽  
Chengliang Zhang
Keyword(s):  
Adaptive Control ◽  
Tracking Error ◽  
Angular Acceleration ◽  
Data Driven ◽  
Prototype Model ◽  
Mechanical Transmission ◽  
Model Free ◽  
Soft Starter ◽  
Belt Conveyors ◽  
Starting Control

Automated mechanical transmission (AMT) is used as a soft starter in this paper. To improve the soft starting quality, a novel data-driven method is studied. By analyzing and comparing five common soft-starting acceleration curves, a segmented acceleration curve is put forward to be used as the soft-starting acceleration curve for the AMT. Based on the prototype model free adaptive control (MFAC) method, a modified MFAC method with jerk compensation is given to control the AMT output shaft’s angular acceleration and reduce driveline shock. Compared with the methods of prototype MFAC and traditional proportion integration differentiation (PID), the modified MFAC method with jerk compensation can better control the AMT output shaft’s angular acceleration and has excellent characteristics in terms of small tracking error and smaller shock. The research results provide a novel data-driven method for AMT as a soft starter.

Simulation Research on Soft-Starting for AMT Driving Belt Conveyor

2014 ◽  
Vol 1006-1007 ◽  
pp. 253-258
Author(s):  
Yun Xia Li ◽  
Zeng Cai Wang
Keyword(s):  
Mechanical Transmission ◽  
Belt Conveyor ◽  
Allowable Limit ◽  
Simulation Research ◽  
Maximum Tension ◽  
Start Up ◽  
Simulation Results ◽  
The Moment ◽  
Short Time ◽  
Peak Value

Automated Mechanical Transmission (AMT) is applied as a new starting device for belt conveyor in the paper. Simulation model of AMT driving belt conveyor is established in AMESim. Simulations of start-up process at first gear condition and shifting process from first to eighth gear are discussed. Belt velocity is accepted as the law of gearshifts to judge the moment of shifting. Simulation results show that AMT could achieve the purpose of belt conveyor’s soft-starting gradually. The belt appears short-time acceleration mutations during shifting process which results in the belt maximum tension, the driving pulley torque, and other parameters changing within their allowable limits. The belt maximum tension appears short-time mutations when the clutch is just engaged, in which case the peak value of belt maximum tension can achieve 110 KN approximately, and is less than its allowable limit. After shift actions, the belt maximum tension and other parameters curves tend to be stable.

scholarly journals Speed control of high power multiple drive belt conveyors

2021 ◽  
Vol 27 (1) ◽  
pp. 9-15
Author(s):  
Milan Vasić ◽  
Nenad Miloradović ◽  
Mirko Blagojević
Keyword(s):  
Power Consumption ◽  
High Power ◽  
Material Flow ◽  
Mining Industry ◽  
Electricity Consumption ◽  
Belt Conveyor ◽  
Speed Regulation ◽  
Drive Belt ◽  
Simulation Results ◽  
Belt Conveyors

Belt conveyors play a very important role in the continuous transport o f bulk and piece material, especially in the mining industry. However, the use o f belt conveyors results in high electricity consumption. A reduction in the power consumption can be achieved by adjusting the speed o f the belt conveyor to match the material flow. However, inappropriate and frequent speed changes can cause serious damage to the conveyor elements. This paper presents a procedure for adjusting the belt conveyor speed to match the profile o f the material on the belt, as well as a detailed procedure for determining the time needed to accelerate/decelerate the belt conveyor. The research was performed on an actual 640 m long belt conveyor used for transport o f overburden at the surface mine Drmno (Serbia). The simulation results show that the speed regulation is completely justified because the conveyor operated at speeds lower than nominal throughout the testing.

scholarly journals Study on Load Parameters Estimation during AMT Startup

2018 ◽  
Vol 2018 ◽  
pp. 1-7
Author(s):  
Yunxia Li ◽  
Yufeng Lu ◽  
Huilai Sun ◽  
Peng Yan
Keyword(s):  
Least Squares Method ◽  
Identification Problem ◽  
Load Resistance ◽  
Parameters Estimation ◽  
Estimation Methods ◽  
Mechanical Transmission ◽  
Belt Conveyor ◽  
Soft Starter ◽  
Resistance Torque ◽  
Estimation Models

The identification problem of the load parameters is the basis of researching the clutch control strategy and the shift schedule for heavy-duty AMT (Automated Mechanical Transmission). AMT is proposed as the soft starter for the belt conveyor which expands AMT application areas. In order to accomplish the goal of AMT as the soft starter, the load parameters estimation methods including the load resistance torque and the load inertia are firstly studied to accommodate the actual control for AMT startup as the soft starter for belt conveyor. In the paper, the estimation models of the load resistance torque and the load inertia are established during AMT startup for belt conveyor. On the basis of the recursion least squares method, the on-line estimations for the load parameters are recognized according to the test data during AMT startup. The estimation results of these two parameters prove that the load parameters estimation models and the estimation methods during AMT startup are valid.

Stability Analysis of a Load Sensing Hydraulic Transmission System Modeling and Simulaton Approach

2000 ◽  
Author(s):  
Rana Saha ◽  
Niloy Khutia ◽  
Rathindranath Maiti
Keyword(s):  
Mathematical Model ◽  
Stability Analysis ◽  
Simulation Model ◽  
Hydraulic System ◽  
System Modeling ◽  
Nonlinear Mathematical Model ◽  
System Parameters ◽  
Load Sensing ◽  
System A ◽  
Simulation Results

Abstract An energy saving hydraulic system, known as load-sensing hydraulic system, to improve the efficiency of transmitting power from the pump to load has been studied in the present work. Due to the addition of the load sensing mechanism stability characteristics deteriorate in this system. A nonlinear mathematical model followed by a simulation model using SIMULINK has been developed to study the effect of system parameters on stability. Simulation results are verified with existing theoretical and experimental results.

Research on Control Theory of Belt Conveyor

2011 ◽  
Vol 63-64 ◽  
pp. 209-213 ◽  
Author(s):  
Limin Chen
Keyword(s):  
Simulation Model ◽  
Closed Loop ◽  
Simple Structure ◽  
Rotation Speed ◽  
Dynamic Performance ◽  
Device Simulation ◽  
Simulation Methods ◽  
Belt Conveyor ◽  
Accurate Design ◽  
Simulation Results

Dynamic performance of belt conveyor has become increasingly prominent, so accurate design techniques should be adopted, thus the dynamic simulation methods are required to research precisely the starting performances of. This paper selects the viscoelasticity model suiting to the belt by comparing dynamic performance of some kinds of models, and develops simulation model of driving device with closed-loop controlling. The simulation model with simple structure, the high stability, the reliable working and the convenient adjustment indicates that rotation speed and output moment of motor change with load and working time, therefore really reflectes dynamic work process of the driving device. Simulation results are more close to practice.

scholarly journals Macro Modeling of V-Shaped Electro-Thermal MEMS Actuator with Human Error Factor

Micromachines ◽  
2021 ◽  
Vol 12 (6) ◽  
pp. 622
Author(s):  
Dongpeng Zhang ◽  
Anjiang Cai ◽  
Yulong Zhao ◽  
Tengjiang Hu
Keyword(s):  
Neural Network ◽  
Simulation Model ◽  
Bp Neural Network ◽  
Human Error ◽  
Calculation Model ◽  
Fuzzy Mathematics ◽  
Ansys Simulation ◽  
Macro Modeling ◽  
Error Factor ◽  
Simulation Results

The V-shaped electro-thermal MEMS actuator model, with the human error factor taken into account, is presented in this paper through the cascading ANSYS simulation model and the Fuzzy mathematics calculation model. The Fuzzy mathematics calculation model introduces the human error factor into the MEMS actuator model by using the BP neural network, which effectively reduces the error between ANSYS simulation results and experimental results to less than 1%. Meanwhile, the V-shaped electro-thermal MEMS actuator model, with the human error factor included, will become more accurate as the database of the V-shaped electro-thermal actuator model grows.

Simulation on the Regulating Characteristics of the Pulse Modulation Hydraulic Hammer

2011 ◽  
Vol 422 ◽  
pp. 176-183
Author(s):  
Gang Wang ◽  
Yu Wan Cen
Keyword(s):  
Time Delay ◽  
Simulation Model ◽  
Impact Energy ◽  
High Speed ◽  
Impact Frequency ◽  
Pulse Modulation ◽  
Motion Equations ◽  
Hydraulic Hammer ◽  
Working Frequency ◽  
Simulation Results

To improve the regulating characteristics of impact energy, simplify structure of hydraulic hammer, a new pulse modulation hydraulic hammer is presented in the paper which can help regulate its impact frequency easily. The motion equations of the hydraulic hammer are established, its simulation model is obtained and the dynamic simulation is carried out on AMESim. The dynamics of high-speed ON/OFF valve is taken into account in the simulation model. The tendency of simulation results conforms to experimental results; it shows that the pulse modulation hydraulic hammer is feasible, and the hydraulic hammer model is reasonable. The time delay in high working frequency is also analyzed.

Heating Performance Research in the Running-In Process of Wet Friction Clutch

2014 ◽  
Vol 614 ◽  
pp. 12-15
Author(s):  
Yu Fei Liu ◽  
Xiu Chao Bai ◽  
Xin Li ◽  
Yong Liang Lei
Keyword(s):  
Simulation Model ◽  
Temperature Control ◽  
Temperature Rise ◽  
Analysis Model ◽  
Heating Performance ◽  
Wet Friction ◽  
Friction Clutch ◽  
Simulation Results ◽  
Model Of Friction ◽  
Performance Research

The heating in the running-in process of wet friction clutch is the key to research in this kind of products. In this paper, based on the shifting clutch composed of metal and paper-based friction liner, using MATLAB/SIMULINK software, the simulation model of friction clutch and the analysis model of conducting heat were established. Thus, the corresponding relationships were obtained, which were the total friction power and clutch temperature variation with the time during the running-in process. According to the simulation results, the main influencing factors on temperature control of wet friction clutch were analyzed during running-in process, and the results could provide reference for reasonable temperature rise control for the clutch.

Sign in / Sign up

Export Citation Format

Share Document