SU-F-P-18: Development of the Technical Training System for Patient Set-Up Considering Rotational Correction in the Virtual Environment Using Three-Dimensional Computer Graphic Engine

2016 ◽  
Vol 43 (6Part5) ◽  
pp. 3362-3362
Author(s):  
K Imura ◽  
T Fujibuchi ◽  
K Kaneko ◽  
E Hamada ◽  
H Hirata
Keyword(s):  
Virtual Environment ◽  
Computer Graphic ◽  
Three Dimensional ◽  
Training System ◽  
Technical Training ◽  
Graphic Engine ◽  
Set Up

Investigation on the Simulation System of GTAW Operation Based on Virtual Reality Technology

2008 ◽  
Vol 575-578 ◽  
pp. 709-715 ◽  
Author(s):  
Zhen Xin Liang ◽  
Jian Xun Zhang ◽  
Yi Pei
Keyword(s):  
Virtual Reality ◽  
Virtual Environment ◽  
High Efficiency ◽  
New Technology ◽  
Three Dimensional ◽  
Simulation System ◽  
Training System ◽  
Stereoscopic Vision ◽  
Training Scheme ◽  
Training Cost

Gas shield Tungsten Arc Welding (GTAW) is an important process method in material processing. Welding quality is vital for the product quality. It is an important way to improve the quality of product by raising the personal capability and handling technique of the welder. In this investigation, because of the deficiency in classic welding training scheme, some new technology were introduced into classic welding training field to improve the efficiency of welding training and reduce training cost. A computer simulation system that can be used to train primary welders was developed combined with three-dimensional stereoscopic vision and API interface of OpenGL, virtual reality is the kernel technology. In this system, welders were trained not in the real operating environment but in the virtual environment where has experience personally effect that simulated by computer. There is unnecessary with welding material and welding energy in virtual environment simulated by computer. It has highly automatic and intelligent and lower required to welding teachers. It is healthy to welder because that intensive arc and harmful dust are disappeared in virtual environment. It is a lower cost and high efficiency method by use of virtual training system to training new welder.

Web-Based Finite Element Mesh Generator for Testing Behavior of Steel Building Connections in Virtual Environment

2002 ◽  
Author(s):  
Ali Abolmaali ◽  
Hadi Razavi
Keyword(s):  
Finite Element ◽  
Virtual Environment ◽  
Three Dimensional ◽  
Test Beam ◽  
Element Mesh ◽  
Web Based ◽  
End Plate ◽  
Plate Connections ◽  
Set Up ◽  
The Web

This study presents development of a Web-based Finite Element Method (FEM) module, which creates model-virtual experimentations (MVE) for double web angle, top and seat angle, flush end-plate, and extended end-plate connections. The MVE mimics the real test set-up for monotonic and cyclic types of experiments in a Web-based virtual environment to be used for conducting virtual experiments to obtain load-deformation characteristics of the aforementioned connections being developed by the authors. The MVE’s library contains three dimensional isoparametric elements with and without internal nodes to eliminate shear errors. The MVE module and its output will contain graphical and visualization capability, and it will be accessible to researchers and students on the web. The Web-based client applications are developed such that it will access the MVE program running on a centralized server. The user is capable of changing parameters of visualization such as connection’s geometric variables or test beam and columns dimensions for real time recreation of MVE.

An Interactive Web-Based 3D Environment for Assembly Training

2008 ◽  
Author(s):  
Atif Qamar ◽  
Zahed Siddique
Keyword(s):  
Three Dimensional ◽  
Training System ◽  
Technical Training ◽  
Training Environment ◽  
Web Based ◽  
Assembly Training ◽  
Solid Models ◽  
Interactive Training ◽  
Effective Training

The role of multimedia enriched web-based applications is being widely accepted as an effective training and instruction mechanism for technical training. Individualized training tools can be created to fit the trainee’s needs. The use of three-dimensional visualization for the web-based training environments plays a key role in building an effective and highly interactive training application. There are still needs to overcome problems regarding the integration of multimedia objects such as three-dimensional animation and simulation. The main objective of this research is to develop the training system with the help of the latest multimedia tools and using the internet as a delivery media. The use of the three-dimensional visualization adds a significant improvement in web-based environment for technical and engineering trainings. In order to accomplish the goals of this research, two kinds of environments are established. Although, the training sections of both the environments are same, there is a difference in terms of editing the position and appearance of the solid models inside the training environment. In the first environment, there is always need of multimedia specialist to edit the position and appearance of the solid models inside the environment. Second environment is provided with a text-based HTML file to provide the easy editing tool for controlling the solid models inside the training environment.

scholarly journals Dynamic models of team rowing for a virtual environment rowing training system

2009 ◽  
Vol 8 (4) ◽  
pp. 49-56 ◽  
Author(s):  
Alessandro Filippeschi ◽  
Emanuele Ruffaldi ◽  
Antonio Frisoli ◽  
Carlo Alberto Avizzano ◽  
Manuel Varlet ◽  
...  
Keyword(s):  
Virtual Environment ◽  
Visual Feedback ◽  
Dynamic Models ◽  
Training System ◽  
Team Behavior ◽  
Set Up

In this paper we report on the strategies adopted to model team rowing behavior for an in-door rowing training system. This system allows athletes to train at in-door location while preserving the main features of out-door rowing. This paper focuses on the dynamic models employed to simulate out-door rowing, as well as on the modeling of team behavior, in order to set up visual feedback for team rowing training. These models are employed for controlling the output in the virtual environment, in particular for training the inter-rower synchronization in a team.

Three-dimensional image analysis and visualization in confocal light microscopy

1993 ◽  
Vol 51 ◽  
pp. 158-159
Author(s):  
J. K. Samarabandu ◽  
R. Acharya ◽  
D. R. Pareddy ◽  
P. C. Cheng
Keyword(s):  
Depth Perception ◽  
Computer Graphic ◽  
Three Dimensional ◽  
Cellular Organization ◽  
Data Set ◽  
Computational Burden ◽  
Interactive Operation ◽  
Cell Organization ◽  
Confocal Images ◽  
3D Digitization

In the study of cell organization in a maize meristem, direct viewing of confocal optical sections in 3D (by means of 3D projection of the volumetric data set, Figure 1) becomes very difficult and confusing because of the large number of nucleus involved. Numerical description of the cellular organization (e.g. position, size and orientation of each structure) and computer graphic presentation are some of the solutions to effectively study the structure of such a complex system. An attempt at data-reduction by means of manually contouring cell nucleus in 3D was reported (Summers et al., 1990). Apart from being labour intensive, this 3D digitization technique suffers from the inaccuracies of manual 3D tracing related to the depth perception of the operator. However, it does demonstrate that reducing stack of confocal images to a 3D graphic representation helps to visualize and analyze complex tissues (Figure 2). This procedure also significantly reduce computational burden in an interactive operation.

Evaluation of a collaborative movement task in a distributed three-dimensional virtual environment

2005 ◽  
Author(s):  
Julio C. Mateo ◽  
Joseph T. Manning ◽  
Jeffrey L. Cowgill ◽  
Thomas J. Moore ◽  
Robert H. Gilkey ◽  
...  
Keyword(s):  
Virtual Environment ◽  
Three Dimensional

Formation and Development of the Pre-Professional Training System of Foreign Medical Applicants in Ukraine (Historical and Educational Aspect)

2014 ◽  
Vol 4 (3) ◽  
pp. 95-98
Author(s):  
Iana Proskurkina
Keyword(s):  
Foreign Students ◽  
Professional Training ◽  
Training System ◽  
Further Education ◽  
Effective System ◽  
History Of ◽  
Set Up ◽  
The University ◽  
History Of Formation ◽  
Educational Aspect

Abstract The growing number of foreign applicants looking forward to getting education in Ukrainian medical universities makes us find the ways how to improve and make effective the pre-professional training system of foreign medical applicants for further education. The article deals with the issues of the history of formation and development of the preprofessional training system of foreign medical applicants in Ukraine. On the ground of the electronic databases of the official websites of higher educational establishments, the data on years of opening first offices of the dean, departments and preparatory faculties for foreign medical applicants in Ukrainian medical universities are analyzed and systematized. Also the data on the setting up preparatory faculties at other universities who carry out licensed training of foreign students of the medical profile are presented. The data on the operating and management of such institutions in the system of the University administration are generalized. It’s revealed that during the years of its functioning the pre-professional training has changed, in particular the system was commercialized and the institutions involved in training foreign applicants have been reorganized. The modern trends in teaching foreign medical students at the preparatory faculties of the Ukrainian medical universities are displayed. Based on the analysis of the data it is concluded that the system of the pre-professional training of foreign medical applicants was set up in the 50s-60s years of the twentieth century. During this time, some positive experience in the preparation of future international medical specialists has been gained. The system of the pre-professional training of foreign medical applicants has been comprehensively improved and an effective system of managing foreign medical applicants has been created.

scholarly journals Vibration characteristics of triple-gear-rotor system in compressed air energy storage under variable torque load

2021 ◽  
Vol 104 (1) ◽  
pp. 003685042098705
Author(s):  
Xinran Wang ◽  
Yangli Zhu ◽  
Wen Li ◽  
Dongxu Hu ◽  
Xuehui Zhang ◽  
...  
Keyword(s):  
Large Scale ◽  
Three Dimensional ◽  
Element Model ◽  
Rotor System ◽  
Dynamic Responses ◽  
System Response ◽  
Rotating Speed ◽  
Torque Load ◽  
Set Up ◽  
Two Stages

This paper focuses on the effects of the off-design operation of CAES on the dynamic characteristics of the triple-gear-rotor system. A finite element model of the system is set up with unbalanced excitations, torque load excitations, and backlash which lead to variations of tooth contact status. An experiment is carried out to verify the accuracy of the mathematical model. The results show that when the system is subjected to large-scale torque load lifting at a high rotating speed, it has two stages of relatively strong periodicity when the torque load is light, and of chaotic when the torque load is heavy, with the transition between the two states being relatively quick and violent. The analysis of the three-dimensional acceleration spectrum and the meshing force shows that the variation in the meshing state and the fluctuation of the meshing force is the basic reasons for the variation in the system response with the torque load. In addition, the three rotors in the triple-gear-rotor system studied show a strong similarity in the meshing states and meshing force fluctuations, which result in the similarity in the dynamic responses of the three rotors.

Optimum Design for the Frame of Open Type Abrasive Flow Polish Machine

2012 ◽  
Vol 497 ◽  
pp. 89-93
Author(s):  
Liang Liang Yuan ◽  
Ke Hua Zhang ◽  
Li Min
Keyword(s):  
Finite Element ◽  
Natural Frequency ◽  
Finite Element Methods ◽  
Optimization Design ◽  
Low Cost ◽  
Three Dimensional ◽  
Force Model ◽  
Optimization Analysis ◽  
Open Type ◽  
Set Up

In order to process heterotype hole of workpiece precisely, an open abrasive flow polish machine is designed, and the optimization design of machine frame is done for low cost. Firstly, basing on the parameters designed with traditional ways, three-dimensional force model is set up with the soft of SolidWorks. Secondly, the statics and modal analysis for machine body have been done in Finite element methods (FEM), and then the optimization analysis of machine frame has been done. At last, the model of rebuild machine frame has been built. Result shows that the deformation angle value of machine frame increased from 0.72′ to 1.001′, the natural frequency of the machine decreased from 75.549 Hz to 62.262 Hz, the weight of machine decreased by 74.178 Kg after optimization. It meets the strength, stiffness and angel stiffness requirement of machine, reduces the weight and cost of machine.

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