Integrating additive manufacturing into product design: An aid to assembly and recyclability.

Southampton Solent Universit

Integration of virtual reality techniques into computer aided product design

EThOS - Electronic Theses Online ServiceGBUnited Kingdo

Additive manufacturing in shipping industry: Opportunities and challenges.

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Additive manufacturing for maritime spare parts supply: An overview.

Additive Manufacturing (AM), also called 3D Printing (3DP) is not a new technology. The technology was invented over 30 years ago. Originally thought of as simply an application for rapid prototyping, it has developed significantly and is now a viable option for many applications including aerospace, automotive, healthcare, construction and consumer products. This paper offers a brief introduction to the history of AM/3DP and an overview of the current state of the art in AM/3DP technologies focusing on their fundamental processes, typical materials, significant benefits, key applications and critical challenges to implementation. Finally a description of the potential benefits to the maritime industry that can be gained by implementation of AM/3DP technologies is presented. The most immediate is the possibility of more efficient logistics, for example the maritime spare parts supply.N/

Virtual reality in maritime: Opportunities and challenges.

The purpose of this paper is to provide a brief overview of virtual reality (VR) technologies and their applications in maritime sector along with potential benefits and critical challenges. Virtual reality (VR) is not a new invention. Scientific research has been working in this field for decades, having recognised it as a very powerful tool for creating more natural and intuitive human computer interactions (HCIs). VR can be described as an interactive, computer-generated three dimensional (3D) environment with which users can interact using specialised peripherals such as 3D displays, data gloves and haptic/force feedback devices. VR is also interpreted as a natural extension to 3D computer graphics with advanced HCIs that simulate a functionally realistic environment. As the technologies of VR evolve, the applications of VR become literally unlimited. It is assumed that VR will reshape the interaction manners between users and computer technology by offering new approaches for the communication of information, the visualisation of processes and the creative expression of ideas. This paper offers a brief primer to the history, current state, and potential future growth of VR. It includes a short history of the technology, a review of the most common VR interfaces, a look at some of the most critical challenges to implementation and a discussion of the future of VR. Finally a description of the potential benefits to the maritime sector that can be gained by implementation of VR technologies is presented.N/

Virtual reality in construction industry : a requirement compatibility analysis approach - art. no. 60551S

Virtual Reality (VR) is regarded as a high-end user-computer interface that involves real-time simulation and interactions through multiple sensorial channels. It is assumed that VR will reshape the interaction interfaces between user and computer technology by offering new approaches for the communication of information, the visualisation of processes and the creative expression of ideas. The VR application in construction has a relatively long history but its successful stories are not heard quite often. In this paper, the authors have explored how much further the construction industry could be supported by new three dimensional (3D) VR technologies in different construction processes. The design information in the construction industry has been discussed first followed by a detail construction process analysis. A questionnaire survey has been conducted and the results of the survey are presented and discussed. As an investigation into the application of 3D VR technologies in the context of the construction processes, the benefits and challenges of current and potential applications of 3DVR in the construction industry have been identified. This study also reveals the strengths and weaknesses of 3D VR technology applications in the construction processes. Suggestions and future works are also provided in this paper

Multiprojector image distortion correction scheme for curved screens on the example of the Cybersphere - art. no. 60551P

One of the problems appearing in the virtual reality (VR) application is the image distortion and blending correction for curved screens with single or multiple projectors. There are ways to solve this problem via a special circuit implementation within the image projectors or via special image correction PC based boxes. In this study we proposed own algorithm for the image correction based on the back ray tracing approach. The algorithm is using reverse ray tracing and it was tested on the Cybersphere(1) setup. We propose the software implementation of the algorithm which allows using it for any programs not limited by a certain technology such as OpenGL for instance as in other image correction algorithms. The algorithm can be used for distributed image rendering and projection such as Chromium based sets

Applications of virtual reality in product design evaluation

Product evaluation throughout various stages of a design process is crucial to the final product's success, and this may be a costly, time consuming and logistically complex process. Currently there are limited product design evaluation tools available to provide better support to the whole product design and development process. Virtual reality (VR) has matured to become useful technology to support efficient and effective product design and development applications. This paper reports an investigation on applying VR technologies to computer aided product evaluation. The research work has concentrated on: i) investigating the potential of emerging VR based technologies such as three dimensional (3D) haptic interaction and 3D stereoscopic viewing, ii) integrating and implementing these VR based technologies into a computer aided product evaluation application and iii) exploring the efficiency and effectiveness of these VR based technologies in comparison with traditional techniques used during the product design evaluation process