Hydraulic Model and Simulation Analysis for Monorail Brake System

2013 ◽  
Vol 278-280 ◽  
pp. 350-353 ◽  
Author(s):  
Feng Gao ◽  
Lin Jing Xiao ◽  
Shuai Guo ◽  
Hong Gang Ma
Keyword(s):  
Hydraulic System ◽  
Simulation Analysis ◽  
Hydraulic Cylinder ◽  
Mine Safety ◽  
Brake System ◽  
Flow Area ◽  
Throttle Valve ◽  
Model And Simulation ◽  
Spring Force ◽  
Unloading Time

This paper mainly analyzes the hydraulic system principle during the monorail braking, and come to a conclusion that the spring stiffness and the throttle valve flow area are main factors affect the brake system. Then we use the MSC.EASY5 to modeling the hydraulic system, and simulate the unloading time of hydraulic cylinder under the spring force, the result shows that, the response time of a braking system can meet the requirement of the coal mine safety regulation, and change the flow area of throttle valve will affect the brake system.

Simulation Analysis of Synchronization Control for Ultrahigh Pressure Sterilization Equipment Based on AMESim

2014 ◽  
Vol 496-500 ◽  
pp. 1340-1343
Author(s):  
Gui Hua Fang ◽  
Xiao Yan Li
Keyword(s):  
Hydraulic System ◽  
Simulation Analysis ◽  
Hydraulic Cylinder ◽  
Synchronous Motor ◽  
Ultrahigh Pressure ◽  
Synchronization Control ◽  
Working Principle ◽  
Working Performance ◽  
Sterilization Equipment ◽  
Synchrony Measure

This paper introduces the working principle of the ultrahigh pressure sterilization equipment, the hydraulic system of hydraulic cylinder promoting the plug moving is analyzed by simulation, and then the hydraulic system added synchronous motor is analyzed by simulation, which found that the latter hydraulic system has higher synchrony measure , and it can improve the working performance of the original equipment, and it has certain reference significance to the improvement of the hydraulic system of the equipment.

Dynamic Characteristics Simulation of Radiator Fin Blanking Machine Hydraulic System

2014 ◽  
Vol 687-691 ◽  
pp. 496-499
Author(s):  
Jie Wang
Keyword(s):  
Simulation Model ◽  
Dynamic Characteristics ◽  
Hydraulic System ◽  
Simulation Analysis ◽  
Good Condition ◽  
Hydraulic Cylinder ◽  
Simulation Software ◽  
Product Line ◽  
Leading Role

The hydraulic system of radiator fin blanking machine plays a leading role in the radiator fin production. Its performance directly affects the efficiency and quality of product line. The hydraulic system of blanking machine for radiator was composed of blanking circuit and support circuit. The hydraulic system realizes the cutting action using the reciprocating movement of the hydraulic cylinder. The hydraulic system simulation model was built by the simulation software of AMESim in this paper. Using the simulation model, the simulation analysis of the dynamic characteristics of hydraulic system were completed. The hydraulic system has been through the debugging and put into production, running in good condition.

Research of Hydraulic Cylinders Dynamic Characteristic and Synchrocontrol on Horizontal Pipes Connector in Deep Sea

2012 ◽  
Vol 164 ◽  
pp. 421-424
Author(s):  
Zhuo Wang ◽  
Yan Jie Li ◽  
Bo Zhang ◽  
Wei Zhang ◽  
Y.Z. Zhang
Keyword(s):  
Dynamic Characteristic ◽  
Deep Sea ◽  
Hydraulic System ◽  
Pid Controller ◽  
Simulation Analysis ◽  
Hydraulic Cylinder ◽  
Horizontal Pipes ◽  
Differential Coefficient ◽  
Hydraulic Cylinders ◽  
Hydraulic Servo

The electro-hydraulic position-servo synchronization system of horizontal pipes connector was designed in order to connect two pipes in deep sea and make sure the journey of synchronization hydro-cylinders in the hydraulic system is less than 2 mm.Its transfer function of symmetric servo controlling oil-cylinder electro-hydraulic servo system were derived . Simulation analysis of its dynamic characteristic was done, and PID controller was applied on the system to regulate two hydraulic cylinder synchronization controls. In the end ,when the proportionality coefficient is Kp=0.55,integral coefficient is Ki=60,differential coefficient is Kd=0,the error of synchronic displacement was less than 0.5 mm, that achieved the request of the control system.

Hydraulic System Simulation of 3-UPS Parallel Mechanism Based on ADAMS/Hydraulics

2013 ◽  
Vol 579-580 ◽  
pp. 430-433
Author(s):  
Bing Bing Yan ◽  
Wen Bo Ren ◽  
Bao Lin Yin ◽  
Yang Li
Keyword(s):  
Hydraulic System ◽  
Parallel Mechanism ◽  
Simulation Analysis ◽  
Theoretical Calculations ◽  
Three Dimensional ◽  
Hydraulic Cylinder ◽  
Prototype Model ◽  
Pressure Curve ◽  
Hydraulic Control ◽  
Coupling System

In order to guaranty the work stability of the move-in-mud robot and movement relationship of wriggle turning joint, to use the 3-UPS parallel mechanism as the steering joint. Make full use of the characteristics flexibility, heavy force loading and small workspace of the parallel mechanism. Supporting link of the parallel mechanism driven by hydraulic cylinders, so a completely hydraulic system is an important factor to ensure the stationary work of parallel mechanism, provide the required power to go forward and ensure the forward speed of the move-in-mud robot. Establish the virtual prototype model of mechanical-hydraulic coupling system by using of Pro/E and ADAMS/Hydraulics software, do the dynamic simulation analysis of hydraulic control system based on Hydraulics module, the simulation process can be made more visual and vivid by three-dimensional visualization. Obtain the platform speed and hydraulic cylinder pressure curve after simulation, compare simulation results with theoretical calculations, and verify that the design is reasonable. The results show that it lays the foundation for the further optimization and research of the move-in-mud robot.

Analysis and Design of Hydraulic System of a Hydraulically Actuated Quadruped Robot

2013 ◽  
Vol 461 ◽  
pp. 861-868
Author(s):  
Zhi Li ◽  
Hong Kai Li ◽  
Hao Zhang ◽  
Zhen Dong Dai
Keyword(s):  
Hydraulic System ◽  
Simulation Analysis ◽  
Movement Pattern ◽  
Hydraulic Cylinder ◽  
Practical Experience ◽  
Quadruped Robot ◽  
Line System ◽  
Analysis And Design ◽  
Hydraulically Actuated ◽  
Asymmetrical Hydraulic Cylinder

Abstract.Quadruped not only possess excellent kinetic speed and stability but also can adapt to various complex terrains, with the result that hydraulically actuated quadruped bionic robots with high load and outstanding adaptability have become the research hotspot. Hydraulic system, which is regarded as the dynamic part of a hydraulic quadruped robot, has a direct effect on the kinetic capability of robots. Based on dog’s structure bionics, hydraulically actuated quadruped robot was designed. In accordance with distribution modes of hydraulic cylinders which drive robot’s kinetic joints, a hydraulic oil-line system of the robot was designed in this paper. Combining the maximum design kinetic velocity, trotting movement pattern within foot’s work space was planned. Velocity curve of each joint’s hydraulic cylinder was obtained through simulation analysis of dynamic analysis software. According to the structure of asymmetrical hydraulic cylinder, minimum flux which the oil hydraulic pump theoretically requires at the robot’s maximum kinetic speed was calculated. With practical experience, the oilsource parameter which could meet the demands of hydraulic quadruped robot were determined.

Simulation Analysis of Proportional Valve Controlled Cylinder Hydraulic System Based on AMESim

2013 ◽  
Vol 668 ◽  
pp. 420-425 ◽  
Author(s):  
Ning Xie ◽  
Xi Chen ◽  
Jin Jin Guo
Keyword(s):  
System Performance ◽  
Hydraulic System ◽  
Simulation Analysis ◽  
Dynamic Performance ◽  
Hydraulic Cylinder ◽  
Simulation Software ◽  
Proportional Valve ◽  
Position Accuracy ◽  
Simulation Results ◽  
Amesim Simulation

Focusing on the performance of proportional valve controlled cylinder, by using AMESim simulation software, dynamic performance of the system has been simulated. Starting by the control strategy, using Genetic Algorithm,the PID parameters which can affect the hydraulic cylinder position accuracy will be optimized. The simulation results show that the optimized parameters can improve system performance, and achieved excellent results.

scholarly journals Research on Fault Diagnosis of Hydraulic System of Fast Erecting Device Based on Fuzzy Neural Network

2022 ◽  
Author(s):  
Yangbing Zheng ◽  
Xiao Xue ◽  
Jisong Zhang
Keyword(s):  
Neural Network ◽  
Fault Diagnosis ◽  
Bp Neural Network ◽  
Hydraulic System ◽  
Fuzzy Neural Network ◽  
Simulation Analysis ◽  
Fuzzy Relation ◽  
Analysis Procedure ◽  
Fuzzy Neural ◽  
Simulation Results

In order to improve the fault diagnosis effectiveness of hydraulic system in erecting devices, the fuzzy neural neural network is applied to carry out fault diagnosis of hydraulic system. Firstly, the main faults of hydraulic system of erecting mechanism are summarized. The main faults of hydraulic system of erecting devices concludes abnormal noise, high temperature of hydraulic oil of hydraulic system, leakage of hydraulic system, low operating speed of hydraulic system, and the characteristics of different faults are analyzed. Secondly, basic theory of fuzzy neural network is studied, and the framework of fuzzy neural network is designed. The inputting layer, fuzzy layer, fuzzy relation layer, relationship layer after fuzzy operation and outputting layer of fuzzy neural network are designed, and the corresponding mathematical models are confirmed. The analysis procedure of fuzzy neural network is established. Thirdly, simulation analysis is carried out for a hydraulic system in erecting device, the BP neural network reaches convergence after 600 times iterations, and the fuzzy neural network reaches convergence after 400 times iterations, fuzzy neural network can obtain higher accuracy than BP neural network, and running time of fuzzy neural network is less than that of BP neural network, therefore, simulation results show that the fuzzy neural network can effectively improve the fault diagnosis efficiency and precision. Therefore, the fuzzy neural network is reliable for fault diagnosis of hydraulic system in erecting devices, which has higher fault diagnosis effect, which can provide the theory basis for healthy detection of hydraulic system in erecting devices.

scholarly journals Research on Precise Control of a Cylinder Delay Oscillation System Based on Response Surface and Genetic Algorithm

2021 ◽  
Vol 2083 (4) ◽  
pp. 042060
Author(s):  
Zhongfu Bao ◽  
Dejiang Zeng ◽  
Runxi Gu
Keyword(s):  
Genetic Algorithm ◽  
Time Delay ◽  
Response Surface ◽  
Dwell Time ◽  
Simulation Analysis ◽  
Oscillation System ◽  
Precise Control ◽  
Throttle Valve ◽  
Air Bag ◽  
Main Component

Abstract A cylinder time-delay oscillation system can be constructed by using air bag and throttle valve. The air bag and throttle valve are used to realize the time-delay transmission of pressure in the feedback circuit, and the feedback pressure is used to promote the reversing of two position five-way valve, so as to realize the reciprocating action of the cylinder. The experimental design is carried out based on the simulation analysis, and the response surface is constructed based on the experimental data to clarify the relationship between the cylinder dwell time and the main component parameters. Based on response surface, genetic algorithm is used to search for the best control parameters to realize the accurate control of cylinder dwell time.

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