Using VR for Design and Manufacturing Applications: A Feasibility Study

1996 ◽  
Author(s):  
S. Angster ◽  
S. Gowda ◽  
S. Jayaram
Keyword(s):  
Virtual Reality ◽  
Virtual Environment ◽  
Conceptual Design ◽  
Feasibility Study ◽  
Software Systems ◽  
Design Evaluation ◽  
Engineering Applications ◽  
Design And Manufacturing ◽  
Physical Prototype ◽  
Manufacturing Applications

Abstract Virtual Reality has been used for several years by architects to bridge the gap between their vision of the product and the finished product. Many of these applications use VR on a completed design and allow minor modifications to the design in the VR environment. This paper presents a feasibility study which was conducted to evaluate the accuracy of VR systems when used for conceptual design and in general, for engineering applications. A truck cab interior was modeled in a virtual environment and several ergonomic tests were performed in this virtual environment. The same tests were performed in a physical prototype of the truck cab and results of the two tests were compared. The virtual reality hardware and software systems used, the design evaluation scenario and the results of the tests are presented.

Virtual Assembly Design Environment

1995 ◽  
Author(s):  
Hugh I. Connacher ◽  
Sankar Jayaram ◽  
Kevin Lyons
Keyword(s):  
Virtual Reality ◽  
Research Effort ◽  
New Technology ◽  
Natural Extension ◽  
Virtual Assembly ◽  
Software Systems ◽  
Design Environment ◽  
Cad System ◽  
Assembly Design ◽  
Design And Manufacturing

Abstract Virtual reality is a technology which is often regarded as a natural extension to 3D computer graphics with advanced input and output devices. This technology has only recently matured enough to warrant serious engineering applications. The integration of this new technology with software systems for engineering, design and manufacturing will provide a new boost to the field of computer-aided engineering. One aspect of design and manufacturing which may be significantly affected by virtual reality is design for assembly. This paper presents the ideas behind a current research effort aimed at creating a virtual assembly design environment and integrating that environment with a commercial, parametric CAD system.

Testing CALS Standards for Engineering and Manufacturing Applications

1992 ◽  
Author(s):  
J. I. Craig ◽  
Robert E. Fulton ◽  
E. R. Stephen ◽  
A. B. Jarnagin
Keyword(s):  
Data Exchange ◽  
Academic Research ◽  
Software Systems ◽  
Aerospace Applications ◽  
Testing Strategies ◽  
Testing Facility ◽  
Design And Manufacturing ◽  
Analysis Design ◽  
Comprehensive Evaluations ◽  
Manufacturing Applications

Abstract Standards verification in a CALS environment can be a complex and demanding process requiring not only a complete understanding of the standard but also the planned application and software implementation. An area of particular concern is the adequacy of vector or geometry based standards such as IGES to represent engineering and manufacturing applications. In such cases the visual similarity of geometry can be an inadequate test of the validity of a data exchange. Analytically oriented use of the geometry representation of some design and manufacturing applications may require very precise exchange of geometric entities. This paper will focus on testing strategies to provide comprehensive evaluations of vector based geometry standards such as IGES for engineering analysis, design and manufacturing use. The tests will show effective ways to measure whether vendor translators adequately capture key behavior needed in such applications. Results will be illustrated through tests at the Georgia Tech CALS Research Center which includes several different workstations and associated CAD software systems. CALS Class II test suites taken from representative aerospace applications are used to illustrate these concepts. The results show the importance of such testing in the verification of future CALS standards built around the PDES/STEP efforts. Finally the paper will outline the role and importance of an analytic testing facility in a comprehensive academic research program on information technology for engineering and how it influences current and future engineering education.

scholarly journals VIRTUAL REALITY TECHNOLOGY IN PRODUCT DESIGN AND MANUFACTURING

2011 ◽  
Author(s):  
Qingjin Peng
Keyword(s):  
Virtual Reality ◽  
Product Design ◽  
Virtual Environments ◽  
Conceptual Design ◽  
Teaching And Learning ◽  
Graduate Course ◽  
Virtual Reality Technology ◽  
Engineering Programs ◽  
Design And Manufacturing ◽  
University Of Manitoba

This paper describes the experience of teaching a graduate course in Mechanical and Manufacturing Engineering Programs at University of Manitoba, Virtual reality technology in product design and manufacturing. The course has been delivered six years since 2001. The course provides an opportunity for students to plan and optimize a design or manufacturing process in virtual environments. Students are expected to analyze some complex, open-ended questions in virtual environments for conceptual design solutions. This paper introduces the course outline and teaching materials developed in the last few years. The emphasis and challenge in the teaching and learning will be discussed. Examples of course projects completed by students are presented. The further work and direction of the course improvement will also be addressed.

Design and Development of Virtual Reality Environments for Biomedical and Engineering Applications

2015 ◽  
Author(s):  
Eder Govea ◽  
Hugo I. Medellín-Castillo
Keyword(s):  
Virtual Reality ◽  
Virtual Environments ◽  
Virtual Environment ◽  
Technological Development ◽  
Low Cost ◽  
Research Work ◽  
Computer Assisted ◽  
Design And Development ◽  
Engineering Applications ◽  
Virtual Objects

Virtual Reality (VR) is one of the areas of knowledge that have taken advantage of the computer technological development and scientific visualization. It has been used in different applications such as engineering, medicine, education, entertainment, astronomy, archaeology and arts. A main issue of VR and computer assisted applications is the design and development of the virtual environment, which comprises the virtual objects. Thus, the process of designing virtual environment requires the modelling of the virtual scene and virtual objects, including their geometry and surface characteristics such as colours, textures, etc. This research work presents a new methodology to develop low-cost and high quality virtual environments and scenarios for biomechanics, biomedical and engineering applications. The proposed methodology is based on open-source software. Four case studies corresponding to two applications in medicine and two applications in engineering are presented. The results show that the virtual environments developed for these applications are realistic and similar to the real environments. When comparing these virtual reality scenarios with pictures of the actual devices, it can be observed that the appearance of the virtual scenarios is very good. In particular the use of textures greatly helps in assessing specific features such as simulation of bone or metal. Thus, the usability of the proposed methodology for developing virtual reality applications in biomedical and engineering is proved. It is important to mention that the quality of the virtual environment will also depend on the 3D modelling skills of the VR designer.

scholarly journals The VR Factory: Discrete Event Simulation Implemented in a Virtual Environment

1998 ◽  
Author(s):  
Jason J. Kelsick ◽  
Judy M. Vance
Keyword(s):  
Virtual Reality ◽  
Virtual Environment ◽  
Discrete Event Simulation ◽  
New Technology ◽  
Discrete Event ◽  
Three Dimensional ◽  
Manufacturing Cell ◽  
Event Simulation ◽  
Three Dimensional Representation ◽  
Design And Manufacturing

Abstract Virtual reality (VR) refers to an immersive, interactive, multi-sensory, viewer-centered, three-dimensional (3D) computer generated environment and the combination of technologies required to build such an environment (Cruz-Neira, 1993). Related to problems of engineering design and manufacturing, this new technology offers engineers the ability to work with computer models in a three-dimensional, immersive environment. This paper describes a virtual reality application where the results of a discrete event simulation of a manufacturing cell are integrated with a virtual model of the cell to produce a virtual environment. The program described in this paper, the VR Factory, allows the user to investigate how various changes to the manufacturing cell affect part production. This investigation is performed while immersed in a computer generated three-dimensional representation of the cell. This paper describes the creation of the VR model of the manufacturing cell, the animation of the environment and the implementation of the results of the discrete event simulation.

The Raymer Manned Mars Airplane: A Conceptual Design and Feasibility Study

2021 ◽  
Author(s):  
Daniel P. Raymer ◽  
James French ◽  
D. Felix Finger ◽  
Arturo Gomez ◽  
Jaspreet Singh ◽  
...  
Keyword(s):  
Conceptual Design ◽  
Feasibility Study

scholarly journals Rear-Seat Productivity in Virtual Reality: Investigating VR Interaction in the Confined Space of a Car

2021 ◽  
Vol 5 (4) ◽  
pp. 15
Author(s):  
Jingyi Li ◽  
Ceenu George ◽  
Andrea Ngao ◽  
Kai Holländer ◽  
Stefan Mayer ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Virtual Environment ◽  
Physical Space ◽  
Rear Seat ◽  
Virtual Space ◽  
Future Research ◽  
Confined Space ◽  
Physical Restraints ◽  
Working Environments ◽  
Research And Design

Ubiquitous technology lets us work in flexible and decentralised ways. Passengers can already use travel time to be productive, and we envision even better performance and experience in vehicles with emerging technologies, such as virtual reality (VR) headsets. However, the confined physical space constrains interactions while the virtual space may be conceptually borderless. We therefore conducted a VR study (N = 33) to examine the influence of physical restraints and virtual working environments on performance, presence, and the feeling of safety. Our findings show that virtual borders make passengers touch the car interior less, while performance and presence are comparable across conditions. Although passengers prefer a secluded and unlimited virtual environment (nature), they are more productive in a shared and limited one (office). We further discuss choices for virtual borders and environments, social experience, and safety responsiveness. Our work highlights opportunities and challenges for future research and design of rear-seat VR interaction.

scholarly journals Using virtual reality to treat aggressive behavior problems in children: A feasibility study

2021 ◽  
pp. 135910452110261
Author(s):  
Sophie C Alsem ◽  
Anouk van Dijk ◽  
Esmée E Verhulp ◽  
Bram O De Castro
Keyword(s):  
Virtual Reality ◽  
Behavior Problems ◽  
Aggressive Behavior ◽  
Feasibility Study ◽  
Treatment Method ◽  
Parent Report ◽  
Treatment Delivery ◽  
Behavioral Therapies ◽  
Technical Issues ◽  
Practice Time

Evidence-based cognitive behavioral therapies (CBTs) for children with aggressive behavior problems have only modest effects. Research is needed into new methods to enhance CBT effectiveness. The aims of the present study were to (1) examine whether interactive virtual reality is a feasible treatment method for children with aggressive behavior problems; (2) investigate children’s appreciation of the method; and (3) explore whether children’s aggression decreased during the ten-session treatment. Six boys (8–12 years) participated at two clinical centers in the Netherlands. Newly developed weekly reports were collected on treatment feasibility (therapist-report), treatment appreciation (child report), and children’s aggression (child/parent report). Results supported treatment feasibility: therapists delivered on average 98% of the session content, provided more than the recommended practice time in virtual reality, experienced few technical issues, and were satisfied with their treatment delivery. Children highly appreciated the treatment. Parents reported decreases in children’s aggression over the treatment period (i.e., between week 1 and week 10), but children did not. The promising findings of this feasibility study warrant randomized controlled trials to determine whether interactive virtual reality enhances CBT effectiveness for children with aggressive behavior problems.

Immersive virtual reality in patients with moderate and severe traumatic brain injury: a feasibility study

2021 ◽  
Author(s):  
Thiago Mazzoli Moraes ◽  
Ana Luiza Zaninotto ◽  
Iuri Santana Neville ◽  
Cintya Yukie Hayashi ◽  
Wellingson Silva Paiva
Keyword(s):  
Traumatic Brain Injury ◽  
Virtual Reality ◽  
Brain Injury ◽  
Feasibility Study ◽  
Severe Traumatic Brain Injury ◽  
Immersive Virtual Reality

scholarly journals Low-Asymmetry Interface for Multiuser VR Experiences with Both HMD and Non-HMD Users

Sensors ◽  
2021 ◽  
Vol 21 (2) ◽  
pp. 397
Author(s):  
Qimeng Zhang ◽  
Ji-Su Ban ◽  
Mingyu Kim ◽  
Hae Won Byun ◽  
Chang-Hun Kim
Keyword(s):  
Virtual Reality ◽  
Virtual Environment ◽  
Mobile Device ◽  
User Satisfaction ◽  
Virtual World ◽  
User Study ◽  
Visual Display ◽  
Point Of View ◽  
Head Mounted Display ◽  
And Behavior

We propose a low-asymmetry interface to improve the presence of non-head-mounted-display (non-HMD) users in shared virtual reality (VR) experiences with HMD users. The low-asymmetry interface ensures that the HMD and non-HMD users’ perception of the VR environment is almost similar. That is, the point-of-view asymmetry and behavior asymmetry between HMD and non-HMD users are reduced. Our system comprises a portable mobile device as a visual display to provide a changing PoV for the non-HMD user and a walking simulator as an in-place walking detection sensor to enable the same level of realistic and unrestricted physical-walking-based locomotion for all users. Because this allows non-HMD users to experience the same level of visualization and free movement as HMD users, both of them can engage as the main actors in movement scenarios. Our user study revealed that the low-asymmetry interface enables non-HMD users to feel a presence similar to that of the HMD users when performing equivalent locomotion tasks in a virtual environment. Furthermore, our system can enable one HMD user and multiple non-HMD users to participate together in a virtual world; moreover, our experiments show that the non-HMD user satisfaction increases with the number of non-HMD participants owing to increased presence and enjoyment.

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