Virtually Intelligent Product Systems: Digital and Physical Twins

Grieves, Michael W.

doi:10.2514/5.9781624105654.0175.0200

Cited by 255 publications

(143 citation statements)

References 20 publications

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“…The interaction of humans and robots in industrial environment is seen as a complex system. Although there is not agreed definition for complexity but the information content, many to many interactions, and hard to predict the behaviour denotes its complexity (Grieves, 2019). The possible advantages of HRC are evident from literature but due to the challenges the technology is still in its early phases of maturity for industrial application while the reliable methods of safely, quickly and intuitively validating these systems are very limited.…”

Section: Virtual Reality In Manufacturingmentioning

confidence: 99%

Virtual reality in manufacturing: immersive and collaborative artificial-reality in design of human-robot workspace

Malik

Masood

Bilberg

2019

International Journal of Computer Integrated Manufacturing

135

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Over the past years the concept of human centred automation has received a lot of attention to achieve hybrid automation. A form of hybrid automation is taking benefit from the synergistic effect of human-robot collaboration. When used in assembly, the requirement of flexibility, adaptability and safety makes the design and redesign of human-robot collaborative (HRC) systems a complex and prone to error process. The use of time-based continuous simulations can offer safe virtual space for testing and validation thus easing the design of complex HRC systems. However, conventional simulations don't allow to experience the future production system as an end-user in an immersive environment. This paper explores the technological development in VR for design of human-centered production systems and develop a unified framework to combine human-robot simulation with VR. The simulation as an event-driven simulation helped in estimating the humanrobot cycle times, developing process plan, layout optimization and robot control program. The same simulation is used in VR to interact with the production equipment and particularly with the robot. Additionally, AWS Sumerian environment is used to create a virtual robot to assist VR user in the design process.

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Section: Virtual Reality In Manufacturingmentioning

confidence: 99%

Virtual reality in manufacturing: immersive and collaborative artificial-reality in design of human-robot workspace

Malik

Masood

Bilberg

2019

International Journal of Computer Integrated Manufacturing

135

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“…The use of a digital twin is an approach used to identify the current state of an NBT [7]. A digital twin is a representation of a real object in a digital and virtual space [8].…”

Section: Backgrounds and Goalsmentioning

confidence: 99%

“…Grieves proposed the first digital twin concept in 2002 as an ideal conceptual model for product life cycle management (PLM) [7]. In his study, the conceptual model was a model comprising two systems-a physical system and a virtual system-including all information regarding the physical system [7]. In 2010, Piascik et al [10] used NASA's three components: A physical product, digital or virtual product, and connection of two products, defined as a concept.…”

Section: Digital Twinmentioning

confidence: 99%

“…However, Bacchiega [9] defined it as a digital copy of the physical system, and Tao et al [12] used physical, virtual, and interaction data to define all components of the product lifecycle as a realistic model. Before 2016, digital twins were defined as including both physical and virtual data as well as the connections between them [7]. Since 2017, the concept of the digital twin has converged and been subdivided into the concept of integrated data that exists digitally.…”

Section: Digital Twinmentioning

confidence: 99%

“…Since 2017, the concept of the digital twin has converged and been subdivided into the concept of integrated data that exists digitally. After Grieves and Vickers redefined digital twins in 2002 [7] and 2010 [10], respectively, they were redefined as a set of virtual information constructs that perfectly describe real physical manufacturing products in 2016. Therefore, the digital twin used in this study is based on the definitions of Kahlen et al [13].…”

Section: Digital Twinmentioning

confidence: 99%

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Lifespan Prediction Technique for Digital Twin-Based Noise Barrier Tunnels

Kim

2020

Sustainability

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Noise barrier tunnels (NBTs) comprise prefabricated components that are easily replaceable, reusable, and have the capacity to improve performance when applied to components as their replacements. Reusing NBTs is more price competitive and environmentally friendly than producing new components. However, determining the remaining life of components before they need to be dismantled, using existing NBTs and their maintenance methods, is a considerable challenge. Therefore, this study used a prototype of the digital twin of an NBT to predict the condition and life of tunnel components using numerical behavior analyses. The prototype of the digital twin used in this study could be used to analyze behaviors using a gyro sensor, thereby enabling life analyses. Girders are structural components that have shorter life expectancies than components close to the ground. Component analysis results indicated that our proposed method confirmed changes in the life of girders and column components. Moreover, a negligible change in the life of the purlin component was confirmed. Life cycles management using digital twins can help reduce NBT installation costs, facilitate resource recycling, and make the installation process eco-friendly as they can aid in identifying components that require replacements in the initial designing stage and establish a procurement plan.

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Overview of Digital Twin

Vohra¹

2022

Digital Twin Technology

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Virtually Intelligent Product Systems: Digital and Physical Twins

Cited by 255 publications

References 20 publications

Virtual reality in manufacturing: immersive and collaborative artificial-reality in design of human-robot workspace

Virtual reality in manufacturing: immersive and collaborative artificial-reality in design of human-robot workspace

Lifespan Prediction Technique for Digital Twin-Based Noise Barrier Tunnels

Overview of Digital Twin

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