Dynamic Simulation Research on Hydraulic System of Backhoe Dredger Excavator

2015 ◽  
pp. 757-764
Author(s):  
Xing Guo ◽  
Yichao Mao ◽  
Kai Kang
Keyword(s):  
Dynamic Simulation ◽  
Hydraulic System ◽  
Simulation Research

Dynamic Simulation Research on Three-Position Four-Way Reversing Valve

2012 ◽  
Vol 619 ◽  
pp. 503-507
Author(s):  
Yu Lan Li ◽  
Xiang Bi An ◽  
Dao Wei Zhu
Keyword(s):  
Dynamic Simulation ◽  
Dynamic Characteristics ◽  
Hydraulic System ◽  
Simulation Analysis ◽  
System Operation ◽  
Simulation Research ◽  
Operation Results

The reversing valve is a vital servo component in the hydraulic system, which reversing the movement of the execute component by the movement of the valve core to change on-off of the hydraulic channels. The model for a three-position four-way electromagnetic reversing valve used in some hydraulic system was established based on AMESim. The simulation operation results showed that the model had realized the same function with that of the actual valve, and had been consistent with the actual one on dynamic characteristics. The established of the model and the dynamic simulation analysis laid foundation for the hydraulic system operation reliably and effectively.

The Analysis of Electro-Hydraulic Valve Performance Based on AMESim Software

2014 ◽  
Vol 1049-1050 ◽  
pp. 901-907
Author(s):  
Wei Yang Chen ◽  
Lian Min Cao
Keyword(s):  
Dynamic Simulation ◽  
Hydraulic System ◽  
Accurate Analysis ◽  
Simulation Accuracy ◽  
Simulation Research ◽  
Hydraulic Simulation ◽  
Simulation Performance ◽  
Simulation Results ◽  
New Research ◽  
Hydraulic Valve

The paper simulate electro-hydraulic valve hydraulic system through the study on hydraulic simulation research, research the response of accuracy and stability, using AMESim software build electro-hydraulic valve model, simulate the actual working conditions of the electro-hydraulic valve and column hydraulic system simulation, verify the correctness of dynamic simulation results. Reference simulation results,we present programs to improve electro-hydraulic valve to improve its stability. AMESim software has good dynamic simulation performance and simulation accuracy, which provides a new research idea for overall dynamic performances accurate analysis of the filling hydraulic support system.

An Adding Mass Method for Stiffly Mechanical System Simulation and Applications to Construction Machinery

2001 ◽  
Author(s):  
Etsujiro Imanishi ◽  
Satoshi Yonezawa ◽  
Naoki Sugano ◽  
Eiko Hirooka ◽  
Takahiro Kobayashi
Keyword(s):  
Mechanical System ◽  
Dynamic Simulation ◽  
Hydraulic System ◽  
Piecewise Linear ◽  
Hydraulic Systems ◽  
Practical Application ◽  
Construction Machinery ◽  
Linear Elements ◽  
Improvement Method ◽  
And Control

Abstract A characteristic improvement method for dynamic simulation of a stiff mechanical system by adding mass is presented. Hydraulic systems with check valves and control valves on construction machinery exhibit piecewise-linear characteristics for hydraulic flow rate and spool stroke. The proposed improvement method involves no time delay in determining the mass by considering both eigenvalue distortion of the system and time response. This paper shows a practical application to the boom derricking system of a rough terrain crane, and demonstrates that this method is useful for dynamic simulation of hydraulic system including stiff piecewise-linear elements.

Utilization of Coupled Simulation in the Fatigue Loads Prediction of a Hydraulically Driven Log Crane

2001 ◽  
Author(s):  
Aki M. Mikkola
Keyword(s):  
Simulation Model ◽  
Dynamic Simulation ◽  
Fatigue Damage ◽  
Hydraulic System ◽  
Software Environment ◽  
Welded Structures ◽  
Mechanism Model ◽  
Detailed Simulation ◽  
Flexible Mechanism ◽  
Fatigue Loads

Abstract Welded structures, such as hydraulically driven booms, are disposed to fatigue damage. Design against fatigue requires information on the fatigue resistance of a structure’s critical details and the fatigue loads that act on each detail. The present paper introduces a method based on dynamic simulation for determining the fatigue loads in a hydraulically driven log crane. The detailed simulation model was built up in the MBS-software environment in which the flexible mechanism model and the equations describing the hydraulic system were combined. The complete simulation model was verified by comparing measurements to numerical results. This comparison shows that there is a clear correspondence between the simulated and measured results. It was thus shown that it is possible to create a simulation model which can be used realistically for determining stresses in fatigue analysis. The model was employed in the study of the fatigue loads, which are formed when the crane is being loaded.

Dynamic Simulation Research of Hydro-Mechanical CVT

2019 ◽  
pp. 1-12
Author(s):  
Maohua Xiao ◽  
Yuewen Wang ◽  
Fan Zou ◽  
Haijun Zhang ◽  
Xianhua Li
Keyword(s):  
Dynamic Simulation ◽  
Simulation Research

Modeling and Simulation Research of Hydraulic Cylinder Speed Control System Based on High-Speed On-Off Valve

2012 ◽  
Vol 590 ◽  
pp. 161-164
Author(s):  
Qin He Gao ◽  
Wen Liang Guan ◽  
Hai Zhou Song ◽  
Zhi Yong Yang
Keyword(s):  
Control System ◽  
Hydraulic System ◽  
High Speed ◽  
Speed Control ◽  
Hydraulic Cylinder ◽  
Simulation Research ◽  
Parallel Application ◽  
Proposed Model ◽  
Speed Control System ◽  
Small Flow

Application of high-speed on-off valve in the hydraulic cylinder speed control system was researched in this paper. Series and parallel application schemes between high-speed on-off valve and hydraulic cylinder are proposed. Model of high-speed on-off valve and hydraulic circuit were established to carry out simulation. The speed and acceleration curve of hydraulic cylinder were achieved by the means of simulation with Simulink. The simulation curves show that, two application schemes can both control the speed of hydraulic cylinder effectively. Series application scheme can be only applied to small flow hydraulic system; parallel application scheme has wider application.

Human Factors Engineering Simulation Methodology

1986 ◽  
Vol 30 (13) ◽  
pp. 1306-1310 ◽  
Author(s):  
Brett A. Storey
Keyword(s):  
Human Factors ◽  
Dynamic Simulation ◽  
Human Factors Engineering ◽  
Human Engineering ◽  
Simulation Research ◽  
Test And Evaluation ◽  
Simulation Techniques ◽  
Simulation Evaluation ◽  
Evaluation Techniques ◽  
Intended Use

This report describes a methodology of simulation research which is designed to accomplish requirements of a human factors engineering simulation, plan. This approach, accompanied by detailed test plans and schedules will fulfill the data item DI-H-7052 (Human Engineering Dynamic Simulation Plan) for intended use of dynamic simulation techniques in support of human engineering analysis, design support and test and evaluation. This methodology will cover the need for dynamic simulation, evaluation techniques, procedures and guidelines, and the behavioral, subjective and physiological methods recommended for use in human engineering evaluations.

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