418V Side Dump Car Introduction: Wall Opening Simulation and Further Research

2014 ◽  
Vol 1036 ◽  
pp. 614-618
Author(s):  
Andrzej Wróbel ◽  
Piotr Musiał ◽  
Aleksander Olszewski ◽  
Daria Bajda ◽  
Martyna Poręba
Keyword(s):  
Main Part ◽  
3D Model ◽  
Angular Displacement ◽  
Step Function ◽  
Motion Simulation ◽  
Simulation Research ◽  
Technical Data ◽  
Valuable Data ◽  
Advantages And Disadvantages ◽  
Technical Solutions

This article includes basic information about 418V dump car. It presents most important technical data and possible applications of the wagon. It also involves main advantages and disadvantages of implicated technical solutions. Main part refers to the wall opening simulation carried out using the Siemens NX 8.5 software [4,5]. Analysis of the behaviour of mechanisms allowed to examine stages of the opening process and delivered valuable data about angular displacement of the side-board. Siemens NX 8.5 software was used in order to conduct side-boards opening simulation. Research was based on existing 3D model of 418V dump car applied into Siemens Motion Simulation module. It involved dividing model into particular elements (‘Links’), defining movement relations between them (‘Joints’), setting up a STEP function and finally creating a new solution. Research resulted in a complex side-board opening simulation. It allowed to define an angular displacement of particular, important parts. Mechanisms were proven to work safely and without any collisions between elements. Outcome of this article may be used in further research referring to the 418V dump car.

Kinematics and Dynamics Simulation Research for Roller Coaster Multi-Body System

2011 ◽  
Vol 421 ◽  
pp. 276-280 ◽  
Author(s):  
Ge Ning Xu ◽  
Hu Jun Xin ◽  
Feng Yi Lu ◽  
Ming Liang Yang
Keyword(s):  
Structural Design ◽  
3D Model ◽  
Structure Design ◽  
Dynamics Simulation ◽  
Body System ◽  
Load Spectrum ◽  
Roller Coaster ◽  
Simulation Research ◽  
Calculation Results ◽  
Multi Body

To assess the roller coaster multi-body system security, it is need to extract the running process of kinematics, dynamics, load spectrum and other features, as basis dates of the roller coaster structural design. Based on Solidworks/motion software and in the 3D model, the calculation formula of the carrying car velocity and acceleration is derived, and the five risk points of the roller coaster track section are found by simulation in the running, and the simulation results of roller coaster axle mass center velocity are compared with theoretical calculation results, which error is less than 4.1%, indicating that the calculation and simulation have a good fit and providing the evidence for the roller coaster structure design analysis.

scholarly journals Designs of new operating copper processing plants: process types, equipment selection, industry trends

2021 ◽  
pp. 44-52
Author(s):  
V. F. Baranov
Keyword(s):  
Large Scale ◽  
High Capacity ◽  
Process Intensification ◽  
Processing Plant ◽  
Advantages And Disadvantages ◽  
Sulphide Ores ◽  
Flotation Cells ◽  
Ore Preparation ◽  
Processing Plants ◽  
Technical Solutions

The article describes the largest operating processing plants for lowgrade copper sulphide ores of our time: 10 plants using the semi-autogenous grinding (SAG) technology and 10 plants using high-pressure grinding rolls (HPGR), with the output of 18 to 100 Mtpa. The unfavorable natural and economic factors are balanced by improved ore preparation and concentration technologies and high-capacity equipment units, combined with cost-saving layout solutions. The ore preparation sector is currently divided between the competing technologies of semi-autogenous grinding and HPGR. The article contains an overview of their advantages and disadvantages. The world’s largest monosection with the capacity of 55.5 Mtpa, that uses the SAG technology, is described. The role of the Drop Weght Test JKSimMet (A×b) parameter in the selection of the ore preparation method and the trend for using HPGR in the processing of strong ores are shown. Examples are provided for the consequences of an inadequate assessment of the feed strength in SAG-based plant designs. Examples of ore preparation process intensification through the use of HPGR in semi-autogenous grinding circuits are also given. The volume of impeller flotation cells installed has reached 600 m3. An overview of the two largest processing plants of our time with the output of 88 and 100 Mtpa of ore is presented. The innovative technical solutions of a newest low-capacity copper plant are highlighted. Based on the results of the overview, a future processing plant is predicted to use ∅12.8–13 m SAG mills, HPGRs with the roll diameter of 3 m, vertical VTM-7000 mills in ore grinding cycles, large fine screens, large-scale impeller flotation cells, and staged SFR and DFR flotation reactors.

Study on Experiment Modeling of Human-Gun System

2014 ◽  
Vol 644-650 ◽  
pp. 2137-2142
Author(s):  
Jian Wang ◽  
Yan Liu ◽  
Zhi Guang Zhang ◽  
Zhan Jiang Yu ◽  
Bao Gui Wang ◽  
...  
Keyword(s):  
Parameter Identification ◽  
Dynamic Simulation ◽  
Test Data ◽  
Main Part ◽  
3D Model ◽  
Quality Test ◽  
High Quality ◽  
Model Parameter ◽  
Interaction System ◽  
Experiment Method

A new kind of human-imitate shooting platform is needed, so that the automation and standardization of small arm experiment could be realized. And the main part of shooting platform design is the modeling of human-gun interaction system. The main object of this paper is modeling human-gun interaction system by testing the model of the system. Firstly, the testing scheme is promoted for testing interaction between gun and human shoulder, and high quality test data is collected. Then, the model parameter of human-gun system is calculated by the method of model parameter identification. 3D model of human-gun system is built. At last, the dynamic simulation is made by ADAMS. And human-gun model built by experiment method is verified.

scholarly journals Mechanical and Electrical Simulations of the Tulip Contact System

Energies ◽  
2020 ◽  
Vol 13 (19) ◽  
pp. 5059
Author(s):  
Sebastian Łapczyński ◽  
Michał Szulborski ◽  
Karol Gołota ◽  
Łukasz Kolimas ◽  
Łukasz Kozarek
Keyword(s):  
Field Analysis ◽  
Comsol Multiphysics ◽  
Motion Simulation ◽  
Simulation Research ◽  
Design Procedures ◽  
Full Contact ◽  
Depth Analysis ◽  
The Individual ◽  
The Cost ◽  
Physical Phenomena

The purpose of this work is to discuss the tulip contact behavior during mechanical and electrical simulations in a Finite Element Method (FEM) environment using ANSYS and COMSOL software. During the simulations, the full contact movement was analyzed. During the contact movement, the individual behavior of the contact components was taken into consideration. The motion simulation was carried out at different velocities and forces acting on the contact. The obtained results were compared to each other and discussed. Relatively, the angles of the contact surfaces to each other were also changed, which meant that we could conduct a more in-depth analysis. The other approach of simulation research was a field analysis of physical phenomena occurring in the tulip contact. This analysis was performed in COMSOL Multiphysics. Parametric analysis allowed an observation of the electric field in the tulip contact at different contact distances with respect to each other. This work is important in terms of the cost effectiveness for design procedures concerning tulip contacts and fault avoidance, which both result from mechanical and electrical conditions throughout contact exploitation and optimization of the working conditions for the tulip contact.

Research on Repairing Deformation Rapidly for Steel Strip

2013 ◽  
Vol 385-386 ◽  
pp. 340-343
Author(s):  
Hui Wei Chen ◽  
Yi Zheng
Keyword(s):  
Main Part ◽  
3D Model ◽  
Steel Strip ◽  
Stress Strain ◽  
Modeling Software

This article studied about bending machine, adopted converse thinking for designing, transformed the bending machine then designed steel strip straightening machine, using this machine to make the deformed steel strip straighten. We used the 3 d modeling software SolidWorks to make a 3d model for the machine, then used the add-in cosmosworks of SolidWorks to make a simulation for main part, got the curve of stress, strain, and displacement of the part and provided a reference for the transformation of steel strip straightening machine.

scholarly journals Polish Preparatory Proceedings in Civil Cases: Written or Oral? Lessons to be Learned from Some Other Jurisdictions

2016 ◽  
Vol 45 (1) ◽  
pp. 199-223
Author(s):  
Anna Piszcz
Keyword(s):  
Main Part ◽  
Advantages And Disadvantages ◽  
Civil Proceedings ◽  
Civil Cases

Abstract In this paper a description of the model of Polish preparatory proceedings in civil cases will be presented. By looking at foreign examples of preparatory activities in civil cases first, we will be able to discern what potential advantages and disadvantages are associated with the written or oral (spoken) form of preparatory activities of court actors in the first stage of civil proceedings. In the second main part of the paper the author will turn to Polish counterparts of these preparatory activities and their form. The author will also deliberate on where a change is needed. She will also attempt to propose some measures that might be useful in the current condition of Polish civil proceedings.

Research on Key Technology of the Simulation Visualization System of the Virtual Wind Farm

2013 ◽  
Vol 579-580 ◽  
pp. 749-753
Author(s):  
Xiao Jing Wan ◽  
Wen Lei Sun ◽  
Qing Yu
Keyword(s):  
Product Development ◽  
Wind Farm ◽  
3D Model ◽  
Simulation System ◽  
Visual Simulation ◽  
Motion Simulation ◽  
Visualization System ◽  
Key Technology ◽  
Development Method ◽  
Level Of Details

From the start of the key technology of 3D model creating, motion simulation, visualization and interaction of roaming, and elaborates the development method of visual simulation system of virtual wind farm. this article achieved that the system not only can realize real-time roaming interaction between participants and 3D simulation system, and can simulate the interaction between the wind turbine and wind field, but also will be the application of VR technology in the dynamic analysis, processing and analysis result, enhance product development from degree and gain a higher level of details.

scholarly journals DOCUMENTATION OF HISTORICAL UNDERGROUND OBJECT IN SKORKOV VILLAGE WITH SELECTED MEASURING METHODS, DATA ANALYSIS AND VISUALIZATION

2016 ◽  
Vol XLI-B5 ◽  
pp. 251-254
Author(s):  
A. Dlesk
Keyword(s):  
Laser Scanning ◽  
3D Model ◽  
Local Development ◽  
Radar Data ◽  
Surface Model ◽  
Measuring Methods ◽  
Advantages And Disadvantages ◽  
Remotely Piloted Aircraft ◽  
Historical Objects ◽  
Aircraft System

The author analyzes current methods of 3D documentation of historical tunnels in Skorkov village, which lies at the Jizera river, approximately 30 km away from Prague. The area is known as a former military camp from Thirty Years’ War in 17th Century. There is an extensive underground compound with one entrance corridor and two transverse, situated approximately 2 to 5 m under the local development. The object has been partly documented by geodetic polar method, intersection photogrammetry, image-based modelling and laser scanning. Data have been analyzed and methods have been compared. Then the 3D model of object has been created and compound with cadastral data, orthophoto, historical maps and digital surface model which was made by photogrammetric method using remotely piloted aircraft system. Then the measuring has been realized with ground penetrating radar. Data have been analyzed and the result compared with real status. All the data have been combined and visualized into one 3D model. Finally, the discussion about advantages and disadvantages of used measuring methods has been livened up. The tested methodology has been also used for other documentation of historical objects in this area. This project has been created as a part of research at EuroGV. s.r.o. Company lead by Ing. Karel Vach CSc. in cooperation with prof. Dr. Ing. Karel Pavelka from Czech Technical University in Prague and Miloš Gavenda, the renovator.

scholarly journals Overview of approaches to driver fatigue recognition and existing technical solutions

2020 ◽  
Vol 1 (3) ◽  
pp. 48-58
Author(s):  
Ya.D. Saprykin ◽  
◽  
V.I. Ryazantsev ◽  
A.A. Smirnov ◽  
◽  
...  
Keyword(s):  
Traffic Accidents ◽  
Road Traffic ◽  
Physiological State ◽  
Steering Wheel ◽  
Driver Fatigue ◽  
The Road ◽  
Advantages And Disadvantages ◽  
Falling Asleep ◽  
On The Road ◽  
Technical Solutions

The article analyzes the existing methods for determining the driver's condition. Driving in a state of fatigue, according to various statistics, is the cause of a large number of road traffic accidents (RTA). The percentage of accidents in Russia associated with the driver falling asleep while driving in 2018 is about 20%, in the USA the number of accidents for the same reason reaches 100,000 per year. The aim of the work is to review existing approaches to recognizing driver fatigue and existing technical solutions in this area. The article discusses such approaches as fatigue recognition based on the physiological state of the driver, recognition based on the driver's behavior, namely his speech and visual signs while driving, fatigue determination based on the nature of the vehicle's movement on the road and based on the driver's actions on the controls, the approaches based on the subjective assessment of the driver's condition. The advantages and disadvantages of each of the approaches were analyzed. The paper also provides an overview of existing fatigue recognition systems from various manufacturers that are currently used on vehicles and are designed to warn the driver of impending fatigue. It was revealed that in modern conditions of road transport operation, the most optimal approaches to fatigue recognition are based on an assessment of the driver's impact on the steering wheel, visual signs of driver fatigue and the nature of the vehicle's movement on the road, therefore, it is proposed to further focus on these methods.

scholarly journals EXPERIENCE OF VIDEO LARYNGOSCOPY DURING TRACHEAL INTUBATION FOR EMERGENCY INDICATIONS IN THE PRACTICE OF AN ANESTHESIOLOGIST AND RESUSCITATOR

2020 ◽  
Vol 21 (3) ◽  
pp. 33-38
Author(s):  
V. V. Vasilev
Keyword(s):  
Tracheal Intubation ◽  
Difficult Intubation ◽  
Direct Laryngoscopy ◽  
Successful Intubation ◽  
Failed Intubation ◽  
Advantages And Disadvantages ◽  
Lehane Grade ◽  
Grade Ii ◽  
The Mean ◽  
Technical Solutions

Objectives. To assess the advantages and disadvantages of videolaryngoscopy as one of methods of tracheal intubation which is being widely used as an alternative to direct laryngoscopy in anesthesiologist’s practice.Material and methods. Over 100 of tracheal intubations were conducted with the use of videolaryngoscope, along with a routine use of the direct laryngoscopy. The results of 48 intubations are discussed. 4 clinical cases are presented in this article.Results. Cormack-Lehane grade I view was obtained in 39 cases (81,3%), Cormack-Lehane grade II - in 9 patients (18,8%). First attempt intubation was performed in 43 cases (89,6%), in 4 cases intubation was successful after second attempt (8,3%), failed intubation was in 1 case (2,1%). The mean duration of successful intubation was 36,9 sec. Certain difficulties occured during intubation related with the advancement of the endotracheal tube. Technical solutions are given for some of intraprocedural conditions.Conclusions. Videolaryngoscopy is a safe and effective method of tracheal intubation. Although this method is not lacking in disadvantages it has a number of advantages, main of which is the improved larynx visualization. In our opinion, this method can not completely replace direct laryngoscopy in anesthesiolodist’s practice, but may serve as an adjuvant in case of difficult intubation.

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