Virtual Reality for Power Plant Design

1999 ◽  
Author(s):  
Peter Ebbesmeyer ◽  
Peter Gehrmann ◽  
Michael Grafe ◽  
Holger Krumm
Keyword(s):  
Virtual Reality ◽  
Plant Design ◽  
Pressurized Water Reactor ◽  
Virtual Reality System ◽  
Virtual Reality Technology ◽  
Support Design ◽  
Pressurized Water ◽  
Design Review ◽  
Development Processes ◽  
Future Work

Abstract We describe DesiRe, a Design Review system based on virtual reality technology. DesiRe is a production virtual reality system that is used to support design review processes during the development of The European Pressurized Water Reactor (EPR). This paper starts with a brief description of the EPR project. We then focus on the design review processes that are an important part of the EPR development processes. We discuss why the use of virtual reality technology significantly improves the design review processes. The subsequent part of the paper introduces in detail the implementation issues and application issues of the virtual reality system DesiRe currently being used by the EPR engineers in their design review meetings. The end of the paper gives an outlook on future work and a brief conclusion. The work presented in this paper is part of an ongoing virtual reality research project at the Heinz Nixdorf Institut and Siemens AG KWU.

scholarly journals Design and Implementation of a Virtual Reality System for Treating Highway Phobias: VRStreet

2018 ◽  
Author(s):  
Jorge A Fuentes ◽  
Rodrigo Nieto ◽  
Francisca Melis ◽  
Luz María González ◽  
Gonzalo Mauricio Rojas ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Steering Wheel ◽  
Specific Situation ◽  
Virtual Reality System ◽  
Patient Will ◽  
Normal Human ◽  
Immersive Environment ◽  
The One ◽  
Future Work ◽  
Physical Responses

To feel fear in a specific situation is a normal human experience, however, when this fear or aversion becomes excessive and disrupts the day to day life of an individual, it is said the person suffers from a type of anxiety disorder called phobia. One common type of treatment for phobias is exposure therapy (professionals expose the patient gradually to the feared object or situation).The objective of this paper is to implement a Virtual Reality system that simulates a real highway environment which allows to treat patients affected by highway phobias in a safe place.In cooperation with psychologists and psychiatrists, an action protocol was conducted to create and recreate the variables of the virtual environment to which the patient will be subjected to. Once this was completed, a Virtual Reality application was made that simulates a realistic highway which includes exits, overpasses, underpasses, and tunnels, among others.This hardware/software system will include Oculus Rift DK2 VR glasses in order to create an immersive environment that the patient can consider real and who will be able to interact with it. The performance of the vehicle was programmed through physical responses similar to reality as well as techniques of artificial intelligence in the vehicles that will interact with the one controlled by the patient. Also, this system includes a steering wheel, pedals, and a gearshift (manual or automatic).We think that this system will contribute to treating highway phobias, allowing the psychiatrist or psychologist to carry out therapy in an appropriate manner and through the support of technology the professional will have the ability to simulate the anxiogenic environment in a realistic manner so as to achieve effective treatment. In a future work, we must quantify the possible benefits of this type of VR system in phobia patients.

Fracture mechanics in design and service: ‘living with defects’ - Fracture mechanics as an aid to design and operation of nuclear plant

1981 ◽  
Vol 299 (1446) ◽  
pp. 227-236 ◽  
Keyword(s):  
Fracture Mechanics ◽  
Material Properties ◽  
Pressure Vessels ◽  
Nuclear Plant ◽  
Plant Design ◽  
Pressurized Water Reactor ◽  
Pressurized Water ◽  
Plant Safety ◽  
Usual Criterion ◽  
Design Protection

Fracture mechanics analyses are an important part of nuclear plant design, supplementing the conventional design protection against failure to cover the possibility of the presence of crack-like defects. The degree of detail and accuracy required for a particular application depends on the possible consequences of a failure and whether the assessment is concerned with plant safety or with aspects of reliability. In the former case, a conservative approach is necessary and the prevention of initiation is the usual criterion. This approach is typified by the safety assessment applied to pressurized water reactor pressure vessels, which is outlined and discussed in relation to elastic plastic approaches and the importance of plant transient conditions, material properties (especially in weldments) and possible defect distributions. Fracture mechanics can help in defining quality control and quality assurance procedures, including both requirements for mechanical property appraisal and nondestructive testing. The latter aspects extend into operation, in respect of monitoring of plant conditions, surveillance of changes in material properties and the use of periodic inspection and plant condition monitoring techniques. A number of examples are quoted and recommendations made to permit improved fracture mechanics assessments.

scholarly journals Virtual reality for older users: a systematic literature review

2019 ◽  
Vol 19 (1) ◽  
pp. 11-25 ◽  
Author(s):  
Rômulo Santos Silva ◽  
Artur Martins Mol ◽  
Lucila Ishitani
Keyword(s):  
Virtual Reality ◽  
Literature Review ◽  
Systematic Literature Review ◽  
Digital Libraries ◽  
The Elderly ◽  
Virtual Reality Technology ◽  
Use Of Technology ◽  
Virtual And Augmented Reality ◽  
Future Work ◽  
State Of Art

The use of technologies by the elderly is still restricted, especially concerning recent technologies. To better understand the older user experience, while using virtual reality technology, we performed a Systematic Literature Review. The databases selected for research were the digital libraries of ACM, IEEE, Science Direct and Google Scholar. During the literature review, we col- lected information about the characteristics of the participants of the studies selected, the experiences reported about the use of technology, the research method used, the technologies chosen for the tests, the results obtained and future work suggested. The main contributions of this work were to identify the state of art of virtual and augmented reality for older people, the possible applications of these technologies to them, the most used devices and also the considerations reported by previous experiences.

scholarly journals Optimization of building model based on 5G virtual reality technology in computer vision software

2021 ◽  
Vol 18 (6) ◽  
pp. 7936-7954
Author(s):  
Ziyou Zhuang ◽  
Keyword(s):  
Computer Vision ◽  
Virtual Reality ◽  
Real Time ◽  
Building Materials ◽  
Scale Transformation ◽  
Correct Result ◽  
Model Optimization ◽  
Optimization Strategy ◽  
Virtual Reality System ◽  
Virtual Reality Technology

<abstract> <p>The 5G virtual reality system needs to interact with the user to draw the scene in real time. The contradiction between the complexity of the scene model and the real-time interaction is the main problem in the operation of the virtual reality system. The model optimization strategy of architectural scene in virtual reality design is studied, and the method of architectural scene model optimization is summarized. This article aims to study the optimization of computer vision software modeling through 5G virtual reality technology. In this paper, the optimization of the architectural model is studied by the method of image gray scale transformation, computer vision detection technology and virtual modeling technology. The four experiments are comprehensive evaluation and quantitative evaluation, comparison of channel estimation performance of different pilot structures, comparison of calculated and true values of external azimuth elements, and the effect of window-to-wall ratio on energy consumption per unit of residential building. The results show that hollow bricks of building materials have a great impact on the environment. The values of the three pixel coordinates X, Y, and Z calculated by the unit quaternion method are 1.27, 1.3, and -6.11, respectively, while the actual coordinate positions are 1.25, 1.37, and -6.22, respectively. It can be seen that the outer orientation element value calculated by the quaternion-based spatial rear intersection method is not much different from the actual value, and the correct result can be accurately calculated.</p> </abstract>

Virtual Web Plant: An Internet-Based Plant Engineering Information System

2000 ◽  
Author(s):  
Peter Ebbesmeyer ◽  
Jürgen Gausemeier ◽  
Holger Krumm ◽  
Thorsten Molt ◽  
Thomas Gruß
Keyword(s):  
Object Oriented ◽  
3D Models ◽  
Plant Design ◽  
Pressurized Water Reactor ◽  
Plant Structure ◽  
Pressurized Water ◽  
Web Based ◽  
Water Reactor ◽  
Engineering Information ◽  
New Type

Abstract The European Pressurized Water Reactor Project (EPR) is based on an innovative design concept for a new type of pressurized water reactor. The development of this concept will be carried out by a consortium of international partners and customers based in Germany and France. During the development of the EPR large amounts of up-to-date engineering data (i.e. CAD data, planning documentation) have to be made available to all project partners for presentation and development. This paper describes the web-based tool Virtual Web Plant (VWP), a tool to integrate 3D models from various CAD plant design tools and to display them interactively. The tool receives the data through the Internet. We describe the special advantages of an object-oriented database for the storage of the graphical data are shown. Through the application of object-oriented databases, it is possible to define various views of the logical plant structure, for example. The user is hereby able to navigate easily through both the plant structure and the project documentation. The work presented in this paper is part of a Virtual Reality Research Project of the Heinz Nixdorf Institute and the Siemens AG KWU.

scholarly journals Application of Virtual Reality Technology in Swimming Teaching

2016 ◽  
Vol 11 (11) ◽  
pp. 9
Author(s):  
Han Guo
Keyword(s):  
Virtual Reality ◽  
Ecological Validity ◽  
Mutual Inductance ◽  
Great Promise ◽  
Software Framework ◽  
Virtual Reality System ◽  
Comparison Analysis ◽  
Virtual Reality Technology ◽  
Low Efficiency ◽  
Perception Action

Swimming is one of the most popular spots among college students, though it is hard to master. With virtual reality (VR) technology, problems of the low-cross mutual inductance and low efficiency can be solved. A physical model and the software framework of the virtual reality system was proposed. The swimming teaching system can solve the problem that perception-action separation, improve the study ecological validity, and hold great promise for the study of perception- action. A comparison analysis between students' correct and wrong swimming movements is carried out, and the analysis results show that the virtual reality system solves the problem of monotonicity in real swimming teaching.

Virtual Reality Based Auxiliary Robot System for Liver

2011 ◽  
Vol 291-294 ◽  
pp. 2682-2685
Author(s):  
Xiao Hui Xie ◽  
Cui Cui Zhao ◽  
Ru Xu Du ◽  
Xiao Fang Yu ◽  
Yue Zhang
Keyword(s):  
Virtual Reality ◽  
Simulation Model ◽  
Low Cost ◽  
Ct Image ◽  
Virtual Reality System ◽  
Robot System ◽  
Virtual Reality Technology ◽  
The Difference

During the liver intervention surgery, the excellent doctor with the help of CT image need puncture the patient several times to find the correct tumor position. Thus, the pain increases for the patient. For the problem a low-cost auxiliary robot system with the help of virtual reality technology for liver invasion surgery is introduced. The auxiliary arm can indicate the punctuation path for doctor and the virtual reality system can find the difference between the planning path of simulation and actual indication path of robot. Then the error can be compensated by modifying and updating the simulation model. Thus the system based on virtual reality is more accuracy and more effective.

scholarly journals Real-Time Application of Computer Graphics Improvement Techniques Using Hyperspectral Textures in a Virtual Reality System

Electronics ◽  
2021 ◽  
Vol 10 (22) ◽  
pp. 2852
Author(s):  
Francisco Díaz-Barrancas ◽  
Halina Cwierz ◽  
Pedro J. Pardo
Keyword(s):  
Virtual Reality ◽  
Three Dimensional ◽  
Virtual Reality System ◽  
Virtual Reality Technology ◽  
New Techniques ◽  
Three Dimensional Objects ◽  
Lighting Conditions ◽  
Chromaticity Coordinates ◽  
Color System ◽  
Real Time Application

In virtual reality technology, it is necessary to develop improvements and apply new techniques that allow rapid progress and innovative development. Nowadays, virtual reality devices have not yet demonstrated the great potential they could develop in the future. One main reason for this is the lack of precision to represent three-dimensional scenarios with a similar solvency to what our visual system obtains from the real world. One of the main problems is the representation of images using the RGB color system. This digital colorimetry system has many limitations when it comes to representing faithful images. In this work we propose to develop a virtual reality environment incorporating hyperspectral textures into a virtual reality system. Based on these hyperspectral textures, the aim of our scientific contribution is to improve the fidelity of the chromatic representation, especially when the lighting conditions of the scenes and its precision are relevant. Therefore, we will present the steps followed to render three-dimensional objects with hyperspectral textures within a virtual reality scenario. Additionally, we will check the results obtained by applying such hyperspectral textures by calculating the chromaticity coordinates of known samples.

Designing the educational process based on virtual reality technologies

2020 ◽  
pp. 19-31
Author(s):  
M. V. Shevchuk ◽  
V. G. Shevchenko ◽  
A. A. Zorina
Keyword(s):  
Virtual Reality ◽  
Smart Home ◽  
Educational Process ◽  
Smart Device ◽  
Virtual Reality System ◽  
Virtual Reality Technology ◽  
Technology Students ◽  
Elective Course ◽  
Basic Concepts ◽  
The Internet Of Things

The article discusses the use of virtual reality technologies in the school informatics course in teaching modeling. The greatest attention is paid to methodological recommendations for the elective course "Technologies of multidimensional modeling based on a virtual reality system for a smart home". In the classroom, students get acquainted with the basic concepts related to virtual reality, modeling objects and processes in 3D editors and based on a modern game engine. For students in the lesson, it is proposed to work with additive technologies on the example of studying a 3D printing device using virtual reality technology. Students participate in all stages of designing and developing a model in the cloud environment and then printing it on a 3D printer. Training within the elective course ends with a consideration of the basic concepts of the internet of things, the possibilities of augmented reality technologies in this area and the construction of a smart device using an educational kit.

Probabilistic Model for Debris-Induced Loss of Long Term Core Cooling

2008 ◽  
Author(s):  
Heather L. Detar ◽  
Daniel T. McLaughlin ◽  
Robert J. Lutz
Keyword(s):  
Safety Issue ◽  
Management Strategies ◽  
Plant Design ◽  
Pressurized Water Reactor ◽  
Original Design ◽  
Pressurized Water ◽  
Design Basis ◽  
Design Basis Accident ◽  
Core Cooling

Generic Safety Issue (GSI) 191 deals with the potential for generation and transport of debris following a design basis accident that is in excess of quantities assumed in the original design basis and licensing of Pressurized Water Reactor (PWR) plants. In addition to physical modifications to the sump screens to comply with the Generic Letter requirements, some plants have also changed Emergency Operating Procedures (EOPs) to include contingency actions to prevent debris-induced loss of long term core cooling. ASME Probabilistic Risk Assessment (PRA) standard RA-Sb-2005 requires that the plant PRA be maintained and updated to reflect the current plant design and operation. Development of PRA models to quantify the potential for debris-induced loss of long term core cooling supports the PRA updated to reflect the as-built as-operated plant. The PWR Owners Group (PWROG) has undertaken a program to develop a generic PRA model for this issue. The generic PRA model was developed to address the overall plant risk, including new physical and procedural modifications. The model also addresses applications, such as Maintenance Rule screening and the assessment of the risk significance of deviations from the licensing basis analyses. The new PRA model probabilistically treats several facets of the potential for debris-induced challenges to long term core cooling; including debris generation and transport as a function of Reactor Coolant System (RCS) break size and location. The PRA model will permit plant operators to easily incorporate the potential for inadequate core cooling during emergency core cooling recirculation from the containment sump into their PRA Level 1 and Level 2 models. The methodology is based on realistically modeling the conditions that may lead to a debris-induced loss of long term core cooling. The PWROG model also includes consideration of water management strategies being implemented by several PWR plant operators.

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