Application of the Mechanical Impedance of Body Arm Movement Based on the Virtual Tennis System

2013 ◽  
Vol 791-793 ◽  
pp. 1436-1440
Author(s):  
Ling Hang Yang
Keyword(s):  
Virtual Reality ◽  
Three Dimensional ◽  
Arm Movement ◽  
Mechanical Impedance ◽  
Simulation Software ◽  
Computer Hardware ◽  
Calculation Results ◽  
Virtual System ◽  
Dimensional Simulation ◽  
Theoretical Results

With the development of computer hardware and software technology, virtual reality technology of computer has been widely used in various fields. Virtual teaching process is one of the main applications of virtual reality computer technology. Tennis is one of the most common sports. Tennis process mainly includes the process of catching a ball, serving a ball and hitting a ball. Virtual process of tennis system must establish an accurate numerical simulation model to calculate the mechanical impedance during the arm movement of human. According to this, it builds a model of the mechanical impedance of human arm in tennis virtual system using three-dimensional simulation software in this paper and gets the curve of mechanical impedance through the simulation. Finally, the article compares calculation results with the theoretical results and concludes that the theoretical results and simulation results are basically consistent which provide a theoretical reference for the design of the development of virtual system for the human.

Research of Technology of Virtual Building and Scene Roaming by Visual Basic

2012 ◽  
Vol 490-495 ◽  
pp. 2333-2336
Author(s):  
Man Yu Zhang ◽  
Wei Min Zhao
Keyword(s):  
Virtual Reality ◽  
Computer Graphics ◽  
Computer Technology ◽  
Three Dimensional ◽  
Visual Basic ◽  
Virtual Reality Technology ◽  
Virtual Scene ◽  
Dimensional Simulation

Recently, the computer technology, especially computer graphics, networks, multimedia, three dimensional simulation developments, injected virtual reality technology with new vitality, which also give 3D virtual scene a direction. The article mainly discusses technology of virtual building scenery, application in today's independent virtual building scene’s deficiency, and the integration of 3D virtual reality, locality and perspective advantages.

IBSIMU: A three-dimensional simulation software for charged particle optics

2010 ◽  
Vol 81 (2) ◽  
pp. 02B703 ◽  
Author(s):  
T. Kalvas ◽  
O. Tarvainen ◽  
T. Ropponen ◽  
O. Steczkiewicz ◽  
J. Ärje ◽  
...  
Keyword(s):  
Charged Particle ◽  
Three Dimensional ◽  
Simulation Software ◽  
Charged Particle Optics ◽  
Dimensional Simulation ◽  
Particle Optics

Simulation Study on Different Composition Fuels in Lean-Burn CNG Engine

2013 ◽  
Vol 448-453 ◽  
pp. 3430-3433
Author(s):  
Chang Qing Song ◽  
Jun Li ◽  
Da Wei Qu ◽  
Qi Jie Liu
Keyword(s):  
Three Dimensional ◽  
Hydrocarbon Fuel ◽  
Simulation Software ◽  
Combustion Model ◽  
Lean Burn ◽  
Maximum Heat ◽  
Cng Engine ◽  
Valve Opening ◽  
Dimensional Simulation ◽  
Combustion Processes

The Paper has Established a Combustion Model of Lean-Burn CNG Engine by Three-Dimensional Simulation Software AVL FRIE. Based on Test Validation in the Model, the Combustion Processes of Seven CNG Samples were Simulated and Compared from the Intake Valve Closed to the Exhaust Valve Opening. the Effects on Different Composition Fuels for CNG Engine were Researched. the Results Showed that: the Maximum Average Pressure within the Cylinder , the Highest Average Temperature, the Maximum Heat Release Rate, the Initial Mass Fraction of Fuels, CO and NO Formation Increased with the Hydrocarbon Fuel Ratio C/H, the Composition of Heavy Paraffin in CNG Directly Affected the Performance and Service Life of the Engine.

scholarly journals Automatic Generation of Locomotion Patterns for Soft Modular Reconfigurable Robots

2019 ◽  
Vol 10 (1) ◽  
pp. 294 ◽  
Author(s):  
Xin Sui ◽  
Hegao Cai ◽  
Dongyang Bie ◽  
Yu Zhang ◽  
Jie Zhao ◽  
...  
Keyword(s):  
Parametric Design ◽  
Three Dimensional ◽  
Structural Complexity ◽  
Automatic Generation ◽  
Simulation Software ◽  
Modular Robots ◽  
Simulation Platform ◽  
Modular Robot ◽  
Dimensional Simulation ◽  
Multi Body

In recent years, soft modular robots have become popular among researchers with the development of soft robotics. However, the absence of a visual 3D simulation platform for soft modular robots hold back the development of the field. The three-dimensional simulation platform plays an important role in the field of multi-body robots. It can shorten the design cycle, reduce costs, and verify the effectiveness of the optimization algorithm expediently. Equally importantly, evolutionary computation is a very effective method for designing the controller of multi-body robots and soft robots with hyper redundancy and large parametric design space. In this paper, a tradeoff between the structural complexity of the soft modular robot and computational power of the simulation software is made. A reconfigurable soft modular robot is designed, and the open-source simulation software VOXCAD is re-developed to simulate the actual soft robot. The evolutionary algorithm is also applied to search for the most efficient motion pattern for an established configuration in VOXCAD, and experiments are conducted to validate the results.

scholarly journals Head-Mounted Virtual Reality and Mental Health: Critical Review of Current Research (Preprint)

2017 ◽  
Author(s):  
Shaun W Jerdan ◽  
Mark Grindle ◽  
Hugo C van Woerden ◽  
Maged N Kamel Boulos
Keyword(s):  
Public Health ◽  
Mental Health ◽  
Virtual Reality ◽  
Health Knowledge ◽  
Three Dimensional ◽  
Computer Hardware ◽  
Future Research ◽  
Head Mounted Display ◽  
Current State ◽  
State Of Research

BACKGROUND eHealth interventions are becoming increasingly used in public health, with virtual reality (VR) being one of the most exciting recent developments. VR consists of a three-dimensional, computer-generated environment viewed through a head-mounted display. This medium has provided new possibilities to adapt problematic behaviors that affect mental health. VR is no longer unaffordable for individuals, and with mobile phone technology being able to track movements and project images through mobile head-mounted devices, VR is now a mobile tool that can be used at work, home, or on the move. OBJECTIVE In line with recent advances in technology, in this review, we aimed to critically assess the current state of research surrounding mental health. METHODS We compiled a table of 82 studies that made use of head-mounted devices in their interventions. RESULTS Our review demonstrated that VR is effective in provoking realistic reactions to feared stimuli, particularly for anxiety; moreover, it proved that the immersive nature of VR is an ideal fit for the management of pain. However, the lack of studies surrounding depression and stress highlight the literature gaps that still exist. CONCLUSIONS Virtual environments that promote positive stimuli combined with health knowledge could prove to be a valuable tool for public health and mental health. The current state of research highlights the importance of the nature and content of VR interventions for improved mental health. While future research should look to incorporate more mobile forms of VR, a more rigorous reporting of VR and computer hardware and software may help us understand the relationship (if any) between increased specifications and the efficacy of treatment.

Application of Virtual Reality in Forestry

2014 ◽  
Vol 989-994 ◽  
pp. 4229-4232
Author(s):  
Wei Dong ◽  
Wei Jiang Gu
Keyword(s):  
Virtual Reality ◽  
Computer Technology ◽  
Landscape Architecture ◽  
Three Dimensional ◽  
Research Process ◽  
Computer Hardware ◽  
Volume Data ◽  
Virtual Reality Technology ◽  
Teaching Concept ◽  
3D Volume

The main characteristics and hardware requirements of Virtual Reality Technology are described in this paper, which summarize the application of virtual reality technology in landscape architecture knowledge, learning, teaching, training and scientific research process, and explore the use of digital city and landscape architecture technology platform to create multiple virtual laboratories and training station conception; it also analyze the influence of the virtual reality technology to teaching concept, teaching content, teaching means . In recent years, computer technology plays an important role in landscape design. Not only can it calculate the garden earth, draw the design of the plane and elevation renderings giving people with static visual experience, but also it implements the three-dimensional landscape animation with the development of computer hardware and software technology, especially the wide application of AutoCAD and 3dsMAX, so that people in the completion of the project can appreciate the pre-built landscape, having the strong performance of the dynamic three-dimensional force. However, the output for the landscape animation avi video format does not have real-time interactivity, which cannot satisfy people autonomy roaming; whereas the production process in the landscape roaming animation, 3D volume data in the scene has certain limitations, can not meet the 3D data volume expansion. The status of 1virtual reality technology and its application in the garden of the 1.1 virtual reality technology, virtual reality (Virtual Reality, abbreviated as VR, also known as VR) refers to the use of computer technology at the core.

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