Mixed reality system for nondestructive evaluation training
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ORIGINAL ARTICLE
Mixed reality system for nondestructive evaluation training Tam V. Nguyen1 · Somaraju Kamma1 · Vamsi Adari1 · Tyler Lesthaeghe2 · Thomas Boehnlein2 · Victoria Kramb2 Received: 23 November 2019 / Accepted: 19 October 2020 © Springer-Verlag London Ltd., part of Springer Nature 2020
Abstract nondestructive evaluation (NDE) is an analysis technique used to evaluate the properties of a material, component, structure or system without causing damage. In this paper, we introduce a novel mixed reality system for NDE training. In particular, we model and simulate the inspected object and the inspection probe. The operator trainees with the wearable headsets are able to move and zoom the inspected object in a mixed environment, i.e., reality with virtual objects overlaid. In addition, the trainees use their gaze, gesture, and voice to control and interact with the virtual objects within the NDE training session. They can also access the help manual in order to follow the training instruction. The system is successfully operated on HoloLens, the state-of-the-art mixed reality headset. Evaluational results demonstrate that the use of mixed reality training provides significant benefit for the potential technician trainees. Keywords Mixed reality · Nondestructive evaluation · Virtual reality · Simulation
1 Introduction Nondestructive evaluation (NDE) is a testing and analysis technique used by industry to evaluate the properties of a material, component, object, or system for characteristic differences or welding defects and discontinuities without causing damage to the original part. The internal structure of an object can be examined for a volumetric inspection with penetrating radiation such as X-rays, neutrons or gamma radiation. Sound waves are utilized in the case of ultrasonic testing. The concept of utilizing virtual reality (VR) and augmented reality (AR) into nondestructive inspection training modules has been around since the 1990s (Kim et al. 1996). The aerospace industry has long recognized that nondestructive inspections are performed on complex components, often in unpleasant environmental conditions. These realistic conditions are not possible to simulate in a classroom setting due to the high cost and efforts. Therefore a need exists for a more effective training program that provides the trainee with an environment as close to that * Tam V. Nguyen [email protected] 1
Department of Computer Science, University of Dayton, Dayton, USA
NDE Engineering Group, University of Dayton Research Institute, Dayton, USA
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experienced in the field as possible. In addition, a virtual reality training module would be much more efficiently updated to keep current with procedural changes due to new technologies and service bulletin updates for material quality inspections (Amza et al. 2018a; Eschen et al. 2018). The need for increased reliability in NDE for high value components within the aerospace and automotive industries has resulted in challenges for meeting the needs for skilled inspect
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