The Fault Analysis and Simulation of Vehicle Hydraulic Shift System Based on AMESim

2014 ◽  
Vol 552 ◽  
pp. 161-165
Author(s):  
Li Ming Hu ◽  
Yan Ru ◽  
Qiang Jiang ◽  
Xiao Rui Hu
Keyword(s):  
Hydraulic System ◽  
Simulation Software ◽  
Fault Analysis ◽  
Fluid Simulation ◽  
Actual System ◽  
Specific Component ◽  
System A ◽  
Working Principle ◽  
Component Failures ◽  
Fault Information

Based on the analysis of the working principle and the failure phenomena as well as their mechanism of a particular type of tracked vehicle hydraulic shift system, a model of the hydraulic system is established using the fluid simulation software AMESim. The responses of the system are then calculated through adjusting some of the parameters of the system and inputting various fault information into the simulation model, so as to find out the correspondence between the dynamic characteristics of the system abnormity and specific component failures. It can be concluded that such simulation can serve as an easy and reliable way to analyze all kinds of fault responses in order to provide a solid reference basis for the fault diagnosis of the actual system.

scholarly journals A New Real-Time Pinch Detection Algorithm Based on Model Reference Kalman Prediction and SRMS for Electric Adjustable Desk

Sensors ◽  
2020 ◽  
Vol 20 (17) ◽  
pp. 4699
Author(s):  
Minming Gu ◽  
Yajie Wei ◽  
Haipeng Pan ◽  
Yujia Ying
Keyword(s):  
Pulse Width Modulation ◽  
Detection Algorithm ◽  
Prediction Algorithm ◽  
Actual System ◽  
Model Reference ◽  
Threshold Detection ◽  
System A ◽  
Working Principle ◽  
Current Sampling ◽  
Kalman Prediction

This paper presents a new algorithm based on model reference Kalman torque prediction algorithm combined with the sliding root mean square (SRMS). It is necessary to improve the accuracy and reliability of the pinch detection for avoiding collision with the height adjustable desk and accidents on users. Motors need to regulate their position and speed during the operation using different voltage by PWM (Pulse Width Modulation) to meet the requirement of position synchronization. It causes much noise and coupling information in the current sampling signal. Firstly, to analyze the working principle of an electric height adjustable desk control system, a system model is established with consideration of the DC (Direct Current) motor characteristics and the coupling of the system. Secondly, to precisely identify the load situation, a new model reference Kalman perdition method is proposed. The load torque signal is selected as a pinch state variable of the filter by comparing the current signal. Thirdly, to meet the need of the different loads of the electric table, the sliding root means square (SRMS) of the torque is proposed to be the criterion for threshold detection. Finally, to verify the effectiveness of the algorithm, the experiments are carried out in the actual system. Experimental results show that the algorithm proposed in this paper can detect the pinched state accurately under different load conditions.

Huge Forging Equipment Hydraulic System Dynamic Analysis

2012 ◽  
Vol 619 ◽  
pp. 459-462 ◽  
Author(s):  
Miao Xie ◽  
Jun Meng ◽  
Wen Xin Xu ◽  
Rong Bao Dong ◽  
Jian Liang Wang
Keyword(s):  
Hydraulic System ◽  
Simulation Models ◽  
Simulation Software ◽  
Hydraulic Systems ◽  
System Pressure ◽  
Hydraulic Hammer ◽  
Hammer Head ◽  
Working Principle ◽  
Switching Characteristics ◽  
Hammer Forging

In order to optimize the dynamic characteristic of hydraulic system of large forging equipment. It based on the model of one company of a certain aero-engine hydraulic system of hydraulic hammer forging, analysis the composition and working principle of hydraulic systems. Using simulation software AMESim, simulate the model of hydraulic systems and by changing the system pressure, flow and effect of the hammer-head stroke to explore this kind of switching characteristics of forging equipment’s hydraulic system. The result shows that this kind of simulation models can reflect the working status of hydraulic hammer well, and provide a technical reference for analysis and tuning equipment that with similar to forging equipment.

Circulatory System of Cold Side of Modeling and Simulation Based on CFdesign

2012 ◽  
Vol 466-467 ◽  
pp. 1397-1401
Author(s):  
Zhuo Li ◽  
Dan Hua Chen
Keyword(s):  
Computer Simulation ◽  
Waste Heat ◽  
Computer Software ◽  
Circulatory System ◽  
Simulation Software ◽  
Fluid Simulation ◽  
Cold Side ◽  
Actual System ◽  
Target Behaviors ◽  
Thermoelectric Conversion

Technology of computer simulation makes the use of the computer software to simulate of the actual system to obtain data on target behaviors, and fluid simulation software CFdesign is one of computer simulation software. Firstly, this paper gives the reason why it adopts fluid simulation software CFdesign to simulate circulatory system of cold side based on parameters of the simplest thermoelectric conversion system and the comparison of simulation software .Then it introduces circulatory system of cold side on thermoelectric conversion test platform, which utilizes waste heat of automobile exhaust. In order to have a suitable circulatory system of clod side, to build the model of circulatory system of cold side by CATIA, it adopts fluid simulation software CFdesign to access to simulation of temperature field

Study on the System Characteristic of a Crane Walking Hydraulic System Based on AMESim

2012 ◽  
Vol 430-432 ◽  
pp. 1809-1813
Author(s):  
Li Li ◽  
Xiao Qiang Wu ◽  
Hua Yang Zhao ◽  
Xiao Min Shan
Keyword(s):  
Hydraulic System ◽  
Simulation Analysis ◽  
Model Simulation ◽  
Simulation Software ◽  
Analysis Method ◽  
Load Sensing ◽  
System A ◽  
Change Characteristics ◽  
Multidisciplinary Simulation ◽  
Crawler Crane

A system simulation model is established by multidisciplinary simulation software Amesim. This model is on account of travel system of a certain hydraulic crawler crane, mainly on selector valve and load sensing pump. Based on this model simulation and dynamic analysis is carried out, then output volume change characteristics of load sensing pump along with load changes is got. Contrasting the simulation result and experiment result, correspondence is very good， which indicate that this model and related parameters are in accordance with real system. A simulation analysis method used to analysis changes of load sensing pump along with load changes is provided.

Design and simulation research of the double-spin folding mechanism based on a suspended missile

2021 ◽  
pp. 154851292110231
Author(s):  
ZH Yuan ◽  
SY Guo ◽  
SN Zhang ◽  
JQ Zhao ◽  
WJ Lu ◽  
...  
Keyword(s):  
High Reliability ◽  
Lift Coefficient ◽  
Great Influence ◽  
Reference Value ◽  
Aerodynamic Characteristics ◽  
Simulation Software ◽  
Fluid Simulation ◽  
Simulation Research ◽  
Double Spin ◽  
Locking Mechanism

Based on the suspension of a missile using folding rotary wings and airbags, in order to improve the basic parameters and motion characteristics of the rotor during the unfolding process and analyze the aerodynamic characteristics of the entire device in the suspension state, after proposing a scheme of double-spin mechanism, the main folding and unfolding mechanism, initial driving device, rotating driving device, and locking mechanism were designed, and the simulation research is studied by the Automatic Dynamic Analysis of Mechanical System and Ansys Fluent Fluid Simulation software, respectively. The results show that the rotation rate was controlled at 41.8 mm/s, the various motion parameters are reasonable, and the operation process is relatively smooth, with high reliability. The speed and pressure value at the tip of the rotor are higher and the aerodynamic disturbance is obvious, which has a great influence on the aerodynamic performance. The speed and pressure distribution of the surrounding flow field is stable, the lift provided is 46 N, and the lift coefficient is 0.55, which can ensure the long-time suspension state of the missile. This paper puts forward a valuable design idea and has practical reference value for the research of the suspended missile.

Design Scheme and Simulation on Automatic Transmission Travel System of Engineering Vehicles Hydraulic Chassis

2010 ◽  
Vol 156-157 ◽  
pp. 137-141 ◽  
Author(s):  
Hui Xian Han ◽  
Pi Shun Ren ◽  
Xian Li Cao ◽  
Mao Fu Liu
Keyword(s):  
Control Strategy ◽  
Hydraulic System ◽  
Automatic Transmission ◽  
Travel Speed ◽  
Transmission System ◽  
Control Effect ◽  
Actual System ◽  
Virtual Test ◽  
Design Scheme ◽  
Software And Hardware

This study analysis the use requirement of engineering vehicles travel system, introduces the hydraulic system and the design scheme of automatic transmission system, discusses the control strategy and method of engineering vehicles travel speed, modeling and simulating based on the actual system software and hardware and the control Strategy and method of automatic transmission system, verifies the vehicle control effect through virtual test, and draws the full-text conclusion at last.

scholarly journals Design of meteorological intelligent sensor based on POE Technology

2021 ◽  
Vol 2121 (1) ◽  
pp. 012016
Author(s):  
Qiangjun Liu ◽  
Yun Liang ◽  
Junlin Zhang ◽  
Liangbo Qi
Keyword(s):  
Power Supply ◽  
Power Supply System ◽  
Supply System ◽  
Actual System ◽  
Intelligent Sensor ◽  
Industry Standard ◽  
Working Principle ◽  
Supply Industry ◽  
And Performance ◽  
System Power

Abstract An application scheme of Poe based Ethernet technology in meteorological intelligent sensor system is designed. The working principle and implementation method of Ethernet power supply system (POE) based on IEEE802.3af Ethernet power supply industry standard are experimentally analyzed. The power supply part of the meteorological intelligent sensor makes full use of Poe technology to provide current on the network cable transmitting data, which greatly reduces the complexity of the power supply system and improves the reliability of the system power supply design. Through the test of the actual system, the function and performance of the meteorological intelligent transmission system have achieved the expected results.

scholarly journals Research on the Influence of the Distribution Pattern of Building Clusters in Coastal Areas on Wind Environment -Focused on Busan area in Korea

2021 ◽  
Vol 308 ◽  
pp. 02010
Author(s):  
Yang Huimin ◽  
Zhao Shuwen ◽  
Kim Chulsoo
Keyword(s):  
Thermal Environment ◽  
Simulation Software ◽  
Fluid Simulation ◽  
Wind Environment ◽  
Environment Quality ◽  
Ventilation Efficiency ◽  
Urban Thermal Environment ◽  
The City ◽  
Public Environment

With the development of urbanization, the heat island phenomenon has led to further deterioration of the urban thermal environment, resulting in wind environment differences. To study the thermal environment of the city, this paper takes the Busan area in South Korea as the research object and analyzes the connection between the layout of buildings and the wind environment based on the microscopic wind environment characteristics of the coastal area using CFD air-fluid simulation software and suggests that the monsoon influence brought by the coastal currents should be paid attention to, the layout of wind-oriented building groups should be improved, urban air ducts should be established to enhance the ventilation efficiency, and the wind environment of the urban public environment and buildings should be guaranteed. The wind environment quality of urban public environment and indoor environment should be ensured.

Single Degree Vibration Platform Self-Tuning Fuzzy PID Controller Design Based on AMESim

2013 ◽  
Vol 310 ◽  
pp. 518-523
Author(s):  
Zhi Qiang Chao ◽  
Xin Ze Li ◽  
Ai Hong Meng
Keyword(s):  
Hydraulic System ◽  
Pid Controller ◽  
Fuzzy Controller ◽  
Controller Design ◽  
Simulation Software ◽  
Fuzzy Pid ◽  
Hydraulic Simulation ◽  
Fuzzy Pid Controller ◽  
Single Degree ◽  
Self Tuning

In recent years, hydraulic simulation has become an important means to research hydraulic system, in order to enable the single degree platform vibration curve with better traceability and reach the requirement of the test, this paper represent single degree system platform stimulated by simulation software AMESim, taking the Single degree freedom vibration hydraulic system as an example, MATlab/simulink is applied to the design of the vibration platform system fuzzy PID controller. Through the comparison between the simulation test and traditional PID controller, the designed self-tuning fuzzy controller can control the platform better, with smaller overshoot, faster response, shorter adjusting time, as well as fulfill the permissible accuracy.

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