University of Twente Student Theses


Casing Design for Head Mounted Device

Zandt, Joep van de (2014) Casing Design for Head Mounted Device.

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Abstract:In this assignment a casing has been design for a Head Mounted Display for Cybermind Interactive Nederland (Cybermind). This assignment is part of the Gravilo project, which is a collaboration between Cybermind, University Hospital Leuven and the Help Brandwonden Kids foundation. The goal of this project is to improve the treatment of burned children with the use of virtual reality. This assignment has the goal to deliver a HMD design that better fits the environment in which it will be used and the people that use it. the HMD will be used for pain-distraction during burn treatment on children in the hospital environment. At the moment several burn centers are working with an old HMD from Cybermind, this does not work very well in the burn treatment environment. This goal produces a research question to guide the design process; the research question is the following: “Which aspects play a role in the use of an HMD during burn treatment and which demands have to be met to optimize this use?” The first part of the assignment is research. This research focuses on usage aspects and limitations of the burn treatment environment. Research has also been done on the physical and mental limitations of the users; these are both the child patients and the practitioners. The HMD’s currently on the consumer and professional market have been researched for their usage aspects and their possibilities in the burn treatment environment. The internal components of the HMD have been looked at; these components have been determined by Cybermind. In preparation for the next phase several possible solutions for facilitating the inefficient cleaning process have been looked at. This process has been deemed as one of the largest bottlenecks in the design. The research phase is wrapped up with a program of demands and wishes (PoD) in which the most important aspects of the design are quantified. After the research phase a design has been created through an iterative design process. Three concepts have been created to provide different solutions to the stated design problem. The development of these concepts has been focused on the usage aspects of the design; mounting and setting up the HMD and cleaning and balance of the HMD. These are aspects where, according to the research phase, the most improvement is needed or where the most influence of the effectiveness of the overall design can be made. These concepts have been developed to the point where their functioning is clear. In an expert evaluation within Cybermind and an evaluation to the PoD the second concept has been chosen as the basis for the final concept. The best aspects of the other two concepts have been integrated in this final concept. In the detailing phase this final concept is further developed. Here design choices have been made concerning the mechanisms, materials and design- and usage aspects. This has resulted in a detailed final concept. For production of the functional prototype the final concept has been transformed into a 3D model, using Solidworks. Because the production of the prototype takes several weeks a simple foam model has also been made to provide a better view on the proportions and ease of usage of the final concept, this mainly concerns the mounting and dismounting of the HMD.
Item Type:Essay (Bachelor)
Faculty:ET: Engineering Technology
Subject:20 art studies
Programme:Industrial Design BSc (56955)
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