Perfect Dynamic Model and Optimal Design of Vibration-Impact Rammer

2011 ◽  
Vol 422 ◽  
pp. 525-528
Author(s):  
Ke Chen ◽  
Zhi Shan Duan ◽  
Jia Qi Fei
Keyword(s):  
Optimal Design ◽  
Real Time ◽  
Dynamic Model ◽  
Computer Programming ◽  
New Method ◽  
Body System ◽  
The Real ◽  
Vibration Impact ◽  
Plastic Theory

In order to find a better method of optimal design of vibration-impact rammer, perfect the dynamic model of vibration-impact rammer. Based on the viscoelastic-plastic theory of soil body, the dynamic model and equation set of vibration-impact rammer and soil body system are built. After computer programming, the real-time working data of vibration-impact rammer is obtained and a new method for optimal design of vibration-impact rammer is provided.

Research a New Automatic Detective Method of Highway Traffic Statement Based on the Information From the License Plate Data

2013 ◽  
Vol 779-780 ◽  
pp. 779-783
Author(s):  
Huan Jiong Zhang ◽  
Xiao Ping Jin ◽  
Ping Zhang
Keyword(s):  
Real Time ◽  
Automatic Detection ◽  
New Method ◽  
License Plate ◽  
Highway Traffic ◽  
Key Technology ◽  
The Real ◽  
Real Time Traffic ◽  
Precise Degree

in this paper, the key technology of the traffic statement automatic detection is researched, based on analyzing the properties of the information from the collected license plates, a new automatic traffic statement detective method is pointed out, this new method can express the essential characters of the traffic statement, and valuably gain the precise degree. This automatic detective method expresses the fine applicative prospect in the field of the real time traffic statement detection and management.

A new method of the real-time atmospheric turbulence modeling

2016 ◽  
Author(s):  
Anna Lylova ◽  
Alexis Kudryashov ◽  
Julia Sheldakova ◽  
Gilles Borsoni
Keyword(s):  
Real Time ◽  
Atmospheric Turbulence ◽  
Turbulence Modeling ◽  
New Method ◽  
The Real

Real-time profiling of reflow process in VPS chamber

2017 ◽  
Vol 29 (1) ◽  
pp. 42-48 ◽  
Author(s):  
Lubomir Livovsky ◽  
Alena Pietrikova
Keyword(s):  
Real Time ◽  
Monitoring System ◽  
New Method ◽  
Real Time Monitoring ◽  
Reflow Process ◽  
Thermal Profile ◽  
Content Type ◽  
The Real ◽  
Heat Control ◽  
Power Modules

Purpose This paper aims to present a new method of real-time monitoring of thermal profiles applied in vapour phase soldering (VPS) reflow processes. The thermal profile setting is a significant variable that affects the quality of joints. The method allows rapid achievement of a required thermal profile based on software control that brings new efficiency to the reflow process and enhanced joint quality, especially for power electronics. Design/methodology/approach A real-time monitoring system based on computerized heat control was realized in a newly developed laboratory VPS chamber using a proportional integral derivation controller within the soldering process. The principle lies in the strictly accurate monitoring of the real defined reflow profile as a reference. Findings Very accurate maintenance of the required reflow profile temperature was achieved with high accuracy (± 2°C). The new method of monitoring and control of the reflow real-time profiling was verified at various maximal reflow temperatures (230°C, 240°C and 260°C). The method is feasible for reflowing three-dimensional (3D) power modules that use various types of solders. The real-time monitoring system based on computerised heat control helped to achieve various heights of vapour zone. Originality/value The paper describes construction of a newly developed laboratory-scale VPS chamber, including novel real-time profiling of the reflow process based on intelligent continuously measured temperatures at various horizontal positions. Real-time profiling in the laboratory VPS chamber allowed reflow soldering on 3D power modules (of greater dimensions) by applying various flux-less solder materials.

A new method for the real-time operation of reservoir systems

1987 ◽  
Vol 23 (7) ◽  
pp. 1376-1390 ◽  
Author(s):  
Aristidis P. Georgakakos ◽  
David H. Marks
Keyword(s):  
Real Time ◽  
New Method ◽  
The Real ◽  
Time Operation ◽  
Reservoir Systems ◽  
Real Time Operation

scholarly journals A New Method of Command and Guide the Unbalanced Distribution of Target

2018 ◽  
Vol 214 ◽  
pp. 03001
Author(s):  
Yangyang Gao ◽  
Minjian Yu ◽  
Hanghang You ◽  
Huiming Ji
Keyword(s):  
Real Time ◽  
Computation Time ◽  
New Method ◽  
Allocation Scheme ◽  
Allocation Model ◽  
The Real ◽  
Hungarian Algorithm ◽  
Air Combat ◽  
Simulation Results ◽  
Target Allocation

In the process of air combat implementation, the real-time command and guidance of air pilot is the key element of air combat irreplaceable. In this paper, a multi-aircraft air combat command and guidance target allocation model is established based on the actual air combat situation. The unbalanced target allocation problem of multi-aircraft air combat command and guidance is studied by combining Hungarian algorithm and evolutionary Hungarian algorithm. Finally, two cases of increasing aircraft number and decreasing aircraft number are simulated and studied. Simulation results show that the method can shorten the computation time and ensure the overall command and guidance advantages of the target allocation scheme effectively.

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