Systematic Dynamics Method for Scenario Simulation Analysis of Urban Traffic CO$_2$ Emissions in Baoding

2015 ◽  
Vol 12 (9) ◽  
pp. 3431-3443
Author(s):  
Lei Wen
Keyword(s):  
Simulation Analysis ◽  
Urban Traffic ◽  
Scenario Simulation ◽  
Dynamics Method

Analysis on Additional Pressure of Tube Sidewall of Immersed Tube Tunnel in Sinking Process of Tube Segment

2013 ◽  
Vol 387 ◽  
pp. 180-184
Author(s):  
Ya Dong Li ◽  
Hai Hong Mo ◽  
Jun Shen Chen
Keyword(s):  
Fluid Dynamics ◽  
Numerical Simulation ◽  
Simulation Analysis ◽  
Lateral Wall ◽  
Special Position ◽  
Additional Pressure ◽  
Whole Process ◽  
Pressure Changes ◽  
Dynamics Method ◽  
Tube Segment

The numerical simulation analysis on the whole process of the tube immersing is researched, which use computational fluid dynamics method, is based on RNG k~ε turbulence model. The analysis shows that: additional pressure of tube lateral wall depends on the changed flow field cause by tube immersing; through the analysis, it have explored the special position of additional pressure changes in the process of immersing; it also shows some problems should be paid attention, through analysis the stress of special position.

Simulation Analysis on Crowd Evacuation of the Subway Train Fire

2012 ◽  
Vol 424-425 ◽  
pp. 1215-1219 ◽  
Author(s):  
Xin Han ◽  
Jin Ning Ma ◽  
Bei Hua Cong
Keyword(s):  
Transport System ◽  
Fire Safety ◽  
Simulation Analysis ◽  
Urban Traffic ◽  
Safety Level ◽  
Software Simulation ◽  
Calculation Results ◽  
Subway System ◽  
Crowd Evacuation ◽  
Subway Train

Nowadays urban subway transport system has transformed its role from auxiliary facilities of urban traffic into a key component in people's lives. It is imperative to promote fire safety level of subway system. This paper simulates the crowd evacuation of the subway train fire. Four passenger densities within the train are set and the results of the software simulation with the calculation results based on specification are compared. It is relatively reliable to reflect the influence of the passenger density on the crowd evacuation, and some suggestions are also given out

Development and Application of CHANSIGNAL Signal Timing Software System

2011 ◽  
Vol 135-136 ◽  
pp. 436-442
Author(s):  
Hong Chen ◽  
Ji Biao Zhou ◽  
Juan Sun
Keyword(s):  
Traffic Flow ◽  
Simulation Analysis ◽  
High Accuracy ◽  
Urban Traffic ◽  
Signal Timing ◽  
Mixed Traffic ◽  
Traffic Condition ◽  
Mixed Traffic Flow ◽  
Timing Model ◽  
Timing System

Considering the mixed traffic flow of current urban traffic condition in our country, the paper develops the CHANSIGNAL signal timing system based on the improved TRRL signal timing model. Through simulation analysis and case verification, the system presents the advantages of high accuracy, calculating speed in signal timing for intersection. The system significantly improves the traffic operating condition, which proves the system’s validity and practicality.

scholarly journals Dynamic Analysis of the Complex Motion of Three-Section Cudgel in Wushu Sports

2021 ◽  
Vol 11 (21) ◽  
pp. 10407
Author(s):  
Man Xu ◽  
Yiran Jiang ◽  
Xingfu He ◽  
Juntong Yuan ◽  
Ying Gao
Keyword(s):  
Angular Velocity ◽  
Simulation Analysis ◽  
Maximum Height ◽  
Training Methods ◽  
Middle Section ◽  
Complex Motion ◽  
Horizontal Movement ◽  
Angular Velocities ◽  
Dynamics Method ◽  
Main Factor

Purpose: To provide some suggestions on how to effectively master these movements during training. Methods: The dynamics method and ABAQUS simulation analysis were used to analyze the two technical movements of the three-section cudgels: wrestling cudgels and retrieving cudgels. Results: In the process of wrestling the cudgel, the best effect is achieved when the height of the cudgel holding hand is between 70 cm and 80 cm from the ground. The maximum height of the rebound was very similar with different initial angular velocities, at 4.5–9 cm. The initial angular velocities caused significant impact to the horizontal movement of cudgel at 8 s. By excluding the errors, the horizontal movement of cudgel increased approximately linearly with the increase of the initial angular velocity. Conclusions: When the height between held cudgel and the ground was controlled at 1.5 times the height of the middle section, the rebound of the tail section was the least. When completing the movement of three-section cudgel, the cudgel body should be in the same plane perpendicular to the ground and to better retrieve the three-section cudgel. The main factor affecting the cudgel wrestling was the height between the cudgel holder and the ground.

scholarly journals Freight Distribution Systems with Cross Docking: A Multidisciplinary Analysis

2012 ◽  
Vol 51 (1) ◽  
Author(s):  
Jesus Gonzalez-Feliu
Keyword(s):  
Distribution Systems ◽  
Simulation Analysis ◽  
Freight Transportation ◽  
Simulation Method ◽  
Scenario Simulation ◽  
Optimization Analysis ◽  
Cross Docking ◽  
Planning Optimization ◽  
Multidisciplinary Analysis ◽  
Optimization Study

Freight transport assures a vital link between suppliers and customers and it represents a major source of employment. Multi-echelon distribution is one of the most common strategies in this field. This paper presents the main concepts of multi-echelon distribution with cross-docking through a multidisciplinary analysis that includes an optimization study and an interview-based analysis. The optimization analysis uses both a geographic approach based on the concept of accessibility and a scenario simulation analysis for collaborative freight transportation. The interview-based analysis includes a conceptual framework for logistics and transport pooling systems and a simulation method for strategic planning optimization.

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