Dynamic Simulation and Control Strategy of Centrifugal Flying Shear

2009 ◽  
Vol 16-19 ◽  
pp. 278-282
Author(s):  
Jin Chun Song ◽  
Chang Zhou Wang ◽  
Dong Xu
Keyword(s):  
Dynamic Simulation ◽  
Control Strategy ◽  
Optimization Design ◽  
Three Dimensional ◽  
Three Dimensional Model ◽  
Production Lines ◽  
Electronic Control System ◽  
Working Principle ◽  
Parameter Optimization Design ◽  
And Control

Centrifugal Flying Shear is one of the most advanced equipments, which is widely used in tandem mill production lines because of its simple structure and high shearing precision. In this paper, the working principle of the centrifugal flying shear was introduced; the three-dimensional model of the centrifugal flying shear was established; the structural analysis and the dynamic simulation of the flying shear, with the movement rule and trajectory, were made based on MATLAB/SimMechanics and Solidworks/COSMOS Motion; and the control strategy of realizing scale shearing was proposed. The results obtained provide theoretical basis for design of the electronic control system, and facilitate further analysis of the shearing process and parameter optimization design of similar flying shears.

Design of Synchronous Machine Model Based on PRO/E and Dynamic Simulation

2012 ◽  
Vol 246-247 ◽  
pp. 1220-1225
Author(s):  
You Kun Zhong
Keyword(s):  
Mathematical Model ◽  
Dynamic Simulation ◽  
Three Dimensional ◽  
Transmission System ◽  
Synchronous Machine ◽  
Dimensional Model ◽  
Transmission Performance ◽  
Three Dimensional Model ◽  
Machine Model ◽  
Working Principle

With the increasing of the number of cars, people are also getting higher and higher demands on the performance of the car, and especially pay attention to the improvement and optimization of automobile transmission system. The transmission is a key part of automobile transmission system, and transmission performance and stability depend on the synchronous machine, so in order to make the vehicle transmission system with higher efficiency, it is necessary to study the synchronous machine. On the basis of elaborating synchronous machine working principle, the use of dynamics theory to establish mathematical model of synchronous machine system, and to carry out the simulation of synchronous machine three-dimensional model in PRO/E environment, then the use of virtual prototype technology to optimize the parameters of synchronous machine, thereby improving the performance of synchronous machine.

Pedal Actuator of Driver Robot Based on Flexible Manipulator

2017 ◽  
Author(s):  
Liangyao Yu ◽  
Sheng Zheng ◽  
Jinghu Chang ◽  
Xiaoxue Liu
Keyword(s):  
Three Dimensional ◽  
Flexible Manipulator ◽  
Ball Screw ◽  
Testing Time ◽  
Three Dimensional Model ◽  
End Effector ◽  
Human Driver ◽  
Working Principle ◽  
Testing Accuracy ◽  
And Control

In most testing scenarios, driver robot can improve the testing accuracy and reduce the testing time when it replaces human driver. In this paper, an innovative pedal actuator of driver robot based on flexible manipulator is designed. This pedal actuator of driver robot can save the driver cabin space by changing the shape of manipulator according to different vehicle models, so that the human driver can sit in the cabin, together with the driver robot, monitor the testing process and take over the driver robot when necessary. The proposed pedal actuator of driver robot is composed of a flexible manipulator and end effector. The end effector which is respected to generate 500N pressure in maximum is based on ball screw pairs actuated by DC motor. The flexible manipulator is designed referring to 2-DOF universal joints. The designed prism shells around joint can improve rigidity of flexible manipulator under the condition of small size. Modular link design is used and every module has 2 degrees of freedoms. Its reaching range can be adjusted by increasing or decreasing the amount of modules. A three dimensional model has been constructed and the working principle of flexible manipulator is demonstrated in this paper. Simplified kinematics model of flexible manipulator is established, and the homogeneous coordinate transformation matrix and Denavit-Hartenberg convention are used to derive the kinematics equations. And the rotation angle of prism shell which is directly related to the servo motor angle is used to express the bending angle of the universal joint in the kinematics equations, so that it becomes straightforward and simple to solve the forward kinematics problem and control the manipulator.

scholarly journals Strata behavior and control strategy of backfilling collaborate with caving fully-mechanized mining

2020 ◽  
Vol 12 (1) ◽  
pp. 703-717
Author(s):  
Yin Wei ◽  
Wang Jiaqi ◽  
Bai Xiaomin ◽  
Sun Wenjie ◽  
Zhou Zheyuan
Keyword(s):  
Numerical Simulation ◽  
Control Strategy ◽  
Three Dimensional ◽  
Simulation Method ◽  
Mine Pressure ◽  
Hydraulic Support ◽  
Transition Area ◽  
Pressure Concentration ◽  
Strata Behavior ◽  
And Control

AbstractThis article analyzes the technical difficulties in full-section backfill mining and briefly introduces the technical principle and advantages of backfilling combined with caving fully mechanized mining (BCCFM). To reveal the strata behavior law of the BCCFM workface, this work establishes a three-dimensional numerical model and designs a simulation method by dynamically updating the modulus parameter of the filling body. By the analysis of numerical simulation, the following conclusions about strata behavior of the BCCFM workface were drawn. (1) The strata behavior of the BCCFM workface shows significant nonsymmetrical characteristics, and the pressure in the caving section is higher than that in the backfilling section. φ has the greatest influence on the backfilling section and the least influence on the caving section. C has a significant influence on the range of abutment pressure in the backfilling section. (2) There exits the transition area with strong mine pressure of the BCCFM workface. φ and C have significant effect on the degree of pressure concentration but little effect on the influence range of strong mine pressure in the transition area. (3) Under different conditions, the influence range of strong mine pressure is all less than 6 m. This article puts forward a control strategy of mine pressure in the transition area, which is appropriately improving the strength of the transition hydraulic support within the influence range (6 m) in the transition area according to the pressure concentration coefficient. The field measurement value of Ji15-31010 workface was consistent with numerical simulation, which verifies the reliability of control strategy of the BCCFM workface.

Dynamic Simulation Analysis of the Crane Hoisting Process Based on Adams

2014 ◽  
Vol 940 ◽  
pp. 132-135 ◽  
Author(s):  
Yi Fan Zhao ◽  
Ling Sha ◽  
Yi Zhu
Keyword(s):  
Dynamic Simulation ◽  
Simulation Analysis ◽  
Three Dimensional ◽  
Wire Rope ◽  
Dynamics Simulation ◽  
Dimensional Model ◽  
Analysis Model ◽  
Three Dimensional Model ◽  
Adams Software ◽  
Simulation Results

Established the dynamics simulation analysis model of crane hoisting mechanism based on the theory of dynamics in Adams software, and then through the three dimensional model of lifting mechanism dynamics entities, the constraints, load, drive can be added, the motion law can be defined to simulation analysis the change of the force of wire rope, the change of displacement, velocity and acceleration of lifting weight in the lifting process. On the basis of the simulation results, it can make a great improvement for the structure of crane and provide a meaningful theoretical reference for the hoisting machinery innovation design.

Finite Element Analysis of Load Capacity on Coupling Clamps for Pipe

2012 ◽  
Vol 201-202 ◽  
pp. 741-744 ◽  
Author(s):  
Zhen Ning Hou ◽  
Jun Wu ◽  
Qing Wang ◽  
Hong Gen Tian ◽  
Nan Chao ◽  
...  
Keyword(s):  
Finite Element ◽  
Stress Intensity ◽  
Optimization Design ◽  
Load Capacity ◽  
Three Dimensional ◽  
Process Conditions ◽  
Fe Model ◽  
Three Dimensional Model ◽  
Element Analysis ◽  
Element Approach

A finite element approach based on Ansys is developed to simulate stress intensity distribution in a three dimensional model of coupling clamp joint, which includes ferrules, pipe caps and bolts. The characteristics of stress intensity distributions of coupling clamp joint under strength pressure loading have been studied by means of the non-linear finite element method. The FE model can also predict the clamp quality and tolerances to be expected under different process conditions and define the most effective process parameters to influence the tolerances. The study could give us a better understanding on the mechanism and basis for optimization design of the coupling clamp joint.

Dynamics Analyses of Rigid-Flexible Coupling of Spot-Welding Robot

2020 ◽  
Vol 19 (04) ◽  
pp. 855-867
Author(s):  
Xiangru Wang ◽  
Wei Song ◽  
Tao Xue ◽  
He Tian
Keyword(s):  
Industrial Production ◽  
Spot Welding ◽  
Maximum Stress ◽  
Three Dimensional ◽  
Welding Robot ◽  
Three Dimensional Model ◽  
Production Lines ◽  
Flexible Coupling ◽  
Simulation Functions ◽  
Dynamics Analyses

With the development of electronics, mechanical automation, computer and other related disciplines, and the improvement of product efficiency and quality in modern industry, welding robots are born and play an increasingly important role in industrial production lines. 6R welding robot is most commonly used in industrial production lines, so the research on 6R welding robot has practical application values. In this paper, MS165 Yaskawa robot is selected as the target robot. SolidWorks software is used to establish the three-dimensional model of Yaskawa robot, which is imported into Adams. Dynamics analyses of the rigid–flexible coupling system of 6R spot welding robot are studied by powerful dynamic simulation functions of Adams. The maximum stress position of the spot-welding robot working under load is also studied, and the maximum stress curve is obtained.

The Study on Starting Control of ER Clutch for Vehicle

2012 ◽  
Vol 490-495 ◽  
pp. 1759-1762 ◽  
Author(s):  
Jian Hua Wang ◽  
Hao Xu ◽  
Fei Xie
Keyword(s):  
Control Strategy ◽  
Control Voltage ◽  
Start Time ◽  
Evaluation Indexes ◽  
Working Principle ◽  
Simulation Results ◽  
And Control ◽  
Start Process ◽  
Er Fluid ◽  
Starting Control

This paper proposed a new design scheme for automatic clutch of AMT which is based on electrorheological (ER) fluid. Through analyzing the working principle and its transfer characteristics of ER fluid, it discussed the start process of vehicle and control strategy of ER Clutch. By changing the control voltage, ER clutch satisfied the requirements of evaluation indexes such as start time and impact degree. The simulation results showed that the control strategy can realize starting rapidly and steadily which would meet the start requirements of economical automobiles

scholarly journals A Biologically-Inspired Dynamic Legged Locomotion With a Modular Reconfigurable Robot

2008 ◽  
Author(s):  
Jimmy Sastra ◽  
Willy Giovanni Bernal Heredia ◽  
Jonathan Clark ◽  
Mark Yim
Keyword(s):  
Experimental Data ◽  
Dynamic Simulation ◽  
Control Strategy ◽  
Legged Locomotion ◽  
Modular Robots ◽  
Robot Design ◽  
Biologically Inspired ◽  
Reconfigurable Robot ◽  
Robot Configuration ◽  
And Control

Reconfigurable Modular robots can adapt their morphologies and their gaits for locomotion through different environments, whether like a snake for moving through constrained spaces or in a wheel-like shape for efficient and fast rolling on flat terrain. This paper proposes a new, scalable biologically-inspired legged style of locomotion for this class of robots. Passively compliant leg attachments are utilized to achieve a dynamic running gait using body articulation. A dynamic simulation as well as experimental data showing that we have achieved stable dynamic locomotion is presented. Although the robot design and control strategy are, in principle, scalable to any number of leg pairs, results are given for a hexapedal robot configuration. This prototype represents the first example of dynamic legged locomotion driven only by body articulation.

Development on Virtual Experimental System of Hydraulic Transmission

2014 ◽  
Vol 568-570 ◽  
pp. 1790-1793
Author(s):  
De Dong Tang ◽  
Yi Liu ◽  
Zhao Wei Min ◽  
Ya Qi Zhang ◽  
Chun Bao Yan ◽  
...  
Keyword(s):  
Teaching And Learning ◽  
Three Dimensional ◽  
Experimental System ◽  
Virtual Experiment ◽  
Three Dimensional Model ◽  
Experiment System ◽  
Main Research ◽  
Experimental Teaching ◽  
Working Principle ◽  
Action Process

In order to meet the demand of hydraulic experiment teaching in universities, base on the analysis of the function of virtual hydraulic experimental system, the main research contents、 system scheme and key technology are determined. Three-dimensional model of the hydraulic components are established. Working principle of hydraulic component is displayed. The action process and the performance of the hydraulic circuit are simulated. A virtual hydraulic experimental system with its own characteristics is built. The virtual experiment system is not only suitable for classroom teaching but also suitable for the experimental teaching and learning activeness of students is enhanced by using the system.

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