scholarly journals Digital Twins for the built environment: learning from conceptual and process models in manufacturing

2021 ◽  
Vol 49 ◽  
pp. 101332
Author(s):  
Juan Manuel Davila Delgado ◽  
Lukumon Oyedele
Keyword(s):  
Built Environment ◽  
Process Models ◽  
Digital Twins

scholarly journals Circular Digital Built Environment: An Emerging Framework

2021 ◽  
Vol 13 (11) ◽  
pp. 6348
Author(s):  
Sultan Çetin ◽  
Catherine De Wolf ◽  
Nancy Bocken
Keyword(s):  
Built Environment ◽  
Circular Economy ◽  
Digital Technologies ◽  
Geographical Information ◽  
Digital Platforms ◽  
Blockchain Technology ◽  
Digital Twins ◽  
Starting Point ◽  
Building Information ◽  
Framework Development

Digital technologies are considered to be an essential enabler of the circular economy in various industries. However, to date, very few studies have investigated which digital technologies could enable the circular economy in the built environment. This study specifically focuses on the built environment as one of the largest, most energy- and material-intensive industries globally, and investigates the following question: which digital technologies potentially enable a circular economy in the built environment, and in what ways? The research uses an iterative stepwise method: (1) framework development based on regenerating, narrowing, slowing and closing resource loop principles; (2) expert workshops to understand the usage of digital technologies in a circular built environment; (3) a literature and practice review to further populate the emerging framework with relevant digital technologies; and (4) the final mapping of digital technologies onto the framework. This study develops a novel Circular Digital Built Environment framework. It identifies and maps ten enabling digital technologies to facilitate a circular economy in the built environment. These include: (1) additive/robotic manufacturing, (2) artificial intelligence, (3) big data and analytics, (4) blockchain technology, (5) building information modelling, (6) digital platforms/marketplaces, (7) digital twins, (8) the geographical information system, (9) material passports/databanks, and (10) the internet of things. The framework provides a fruitful starting point for the novel research avenue at the intersection of circular economy, digital technology and the built environment, and gives practitioners inspiration for sustainable innovation in the sector.

scholarly journals DIGITAL TWIN FOR INDOOR DISASTER IN SMART CITY: A SYSTEMATIC REVIEW

2022 ◽  
Vol XLVI-4/W3-2021 ◽  
pp. 315-322
Author(s):  
S. Shaharuddin ◽  
K. N. Abdul Maulud ◽  
S. A. F. Syed Abdul Rahman ◽  
A. I. Che Ani
Keyword(s):  
Urban Planning ◽  
Built Environment ◽  
Disaster Management ◽  
Smart City ◽  
Smart Cities ◽  
Environmental Disaster ◽  
Digital Twin ◽  
Digital Twins ◽  
Building Information ◽  
Recent Developments

Abstract. Technology has advanced and progressed tremendously, and the term city is being elevated to a new level where the smart city has been introduced globally. Recent developments in the concept of smart city have led to a renewed interest in Digital Twin. Using precise Building Information Modelling (BIM) consolidated with big data and sensors, several attempts have been made to establish digital twin smart cities. In recent years, several researchers have sought to determine the capability of smart city and digital twin for various taxonomies such as development and urban planning purposes, built environment, manufacturing, environmental, disaster management, and healthcare. Despite being beneficial in many disciplines, especially in manufacturing, built environment, and urban planning, these existing studies have shown a lack of aspect in terms of emergency or disaster-related as opposed to the elements mentioned above. This is because the researcher has not treated emergencies or disasters in much detail. Therefore, an extensive review on smart city, digital twin, BIM and disaster management and technology that revolves around these terms were summarised. In general, 39 articles from prominent multidisciplinary databases were retrieved over the last two decades based on the suggested PRISMA workflow. These final articles were analysed and categorised into four themes based on the research content, gist, and keywords. Based on the review of 39 articles related to smart city, digital twin and BIM, a workflow for the smart city digital twin and the conceptual framework for indoor disaster management was proposed accordingly. The establishment of smart city digital twins solely for an indoor emergency can be beneficial to urbanites, and it could provide numerous benefits for enhanced situation assessment, decision making, coordination, and resource allocation.

scholarly journals Digital twins of complex technical systems for management of built environment

2020 ◽  
Vol 869 ◽  
pp. 062045
Author(s):  
Nikolai Bolshakov ◽  
Vladimir Badenko ◽  
Vladimir Yadykin ◽  
Alberto Celani ◽  
Alexander Fedotov
Keyword(s):  
Built Environment ◽  
Digital Twins ◽  
Complex Technical Systems ◽  
Technical Systems

scholarly journals Digital Twins for High-Tech Machining Applications—A Model-Based Analytics-Ready Approach

2021 ◽  
Vol 5 (3) ◽  
pp. 80
Author(s):  
Albrecht Hänel ◽  
André Seidel ◽  
Uwe Frieß ◽  
Uwe Teicher ◽  
Hajo Wiemer ◽  
...  
Keyword(s):  
Information System ◽  
Basic Structure ◽  
Process Models ◽  
High Tech ◽  
Machining Processes ◽  
Specific Calculation ◽  
Digital Twin ◽  
Digital Twins ◽  
Data Layer ◽  
Digital Shadow

This paper presents a brief introduction to competition-driven digital transformation in the machining sector. On this basis, the creation of a digital twin for machining processes is approached firstly using a basic digital twin structure. The latter is sub-grouped into information and data models, specific calculation and process models, all seen from an application-oriented perspective. Moreover, digital shadow and digital twin are embedded in this framework, being discussed in the context of a state-of-the-art literature review. The main part of this paper addresses models for machine and path inaccuracies, material removal and tool engagement, cutting force, process stability, thermal behavior, workpiece and surface properties. Furthermore, these models are superimposed towards an integral digital twin. In addition, the overall context is expanded towards an integral software architecture of a digital twin providing information system. The information system, in turn, ties in with existing forward-oriented planning from operational practice, leading to a significant expansion of the initially presented basic structure for a digital twin. Consequently, a time-stratified data layer platform is introduced to prepare for the resulting shadow-twin transformation loop. Finally, subtasks are defined to assure functional interfaces, model integrability and feedback measures.

scholarly journals A Discrete Process Modelling and Simulation Methodology for Industrial Systems within the Concept of Digital Twins

2022 ◽  
Vol 12 (2) ◽  
pp. 870
Author(s):  
George Tsinarakis ◽  
Nikolaos Sarantinoudis ◽  
George Arampatzis
Keyword(s):  
Data Exchange ◽  
Modelling And Simulation ◽  
Process Models ◽  
Industrial System ◽  
Industrial Systems ◽  
Physical Systems ◽  
Digital Twins ◽  
Alternative Scenarios ◽  
Scientific Fields ◽  
Open Issues

A generic well-defined methodology for the construction and operation of dynamic process models of discrete industrial systems following a number of well-defined steps is introduced. The sequence of steps for the application of the method as well as the necessary inputs, conditions, constraints and the results obtained are defined. The proposed methodology covers the classical offline modelling and simulation applications as well as their online counterpart, which use the physical system in the context of digital twins, with extensive data exchange and interaction with sensors, actuators and tools from other scientific fields as analytics and optimisation. The implemented process models can be used for what-if analysis, comparative evaluation of alternative scenarios and for the calculation of key performance indicators describing the behaviour of the physical systems under given conditions as well as for online monitoring, management and adjustment of the physical industrial system operations with respect to given rules and targets. An application of the proposed methodology in a discrete industrial system is presented, and interesting conclusions arise and are discussed. Finally, the open issues, limitations and future extensions of the research are considered.

DIGITAL TRANSMISSION SYSTEM

2021 ◽  
pp. 23-27
Author(s):  
R. Malikov
Keyword(s):  
Business Processes ◽  
Operating Time ◽  
Digital Transmission ◽  
Technical Condition ◽  
Process Models ◽  
Operating Parameters ◽  
Physical Processes ◽  
Optimal Operating ◽  
Operating Modes ◽  
Digital Twins

This article examines the process models of business processes of gas distribution stations (GDS), which would be a symbiosis of digital twins and artificial intelligence. The basis of the system could be a mathematical model of the plant, taking into account the operating parameters, which is able to determine the response of the equipment to various operating loads and predict the periods of trouble-free operation. The system could also provide for methods of simulation of physical processes to determine the optimal operating modes and boundary conditions for their operation. Reengineering means that we are moving to the operation of the main GDS equipment according to the actual technical condition, and not according to the operating time, as is happening now.

scholarly journals From BIM to digital twins: a systematic review of the evolution of intelligent building representations in the AEC-FM industry

2021 ◽  
Vol 26 ◽  
pp. 58-83
Author(s):  
Min Deng ◽  
Carol C. Menassa ◽  
Vineet R. Kamat
Keyword(s):  
Systematic Review ◽  
Life Cycle ◽  
Built Environment ◽  
Construction Process ◽  
Environment Monitoring ◽  
Ongoing Research ◽  
Digital Twin ◽  
Current State ◽  
Digital Twins ◽  
Recent Emergence

The widespread adoption of Building Information Modeling (BIM) and the recent emergence of Internet of Things (IoT) applications offer several new insights and decision-making capabilities throughout the life cycle of the built environment. In recent years, the ability of real-time connectivity to online sensors deployed in an environment has led to the emergence of the concept of the Digital Twin of the built environment. Digital Twins aim to achieve synchronization of the real world with a virtual platform for seamless management and control of the construction process, facility management, environment monitoring, and other life cycle processes in the built environment. However, research in Digital Twins for the built environment is still in its nascent stages and there is a need to understand the advances in the underlying enabling technologies and establish a convergent context for ongoing and future research. This paper conducted a systematic review to identify the development of the emerging technologies facilitating the evolution of BIM to Digital Twins in built environment applications. A total of 100 related papers including 23 review papers were selected and reviewed. In order to systematically classify the reviewed studies, the authors developed a five-level ladder categorization system based on the building life cycle to reflect the current state-of-the-art in Digital Twin applications. In each level of this taxonomy, applications were further categorized based on their research domains (e.g., construction process, building energy performance, indoor environment monitoring). In addition, the current state-of-art in technologies enabling Digital Twins was also summarized from the reviewed literature. It was found that most of the prior studies conducted thus far have not fully exploited or realized the envisioned concept of the Digital Twin, and thus classify under the earlier ladder categories. Based on the analysis of the reviewed work and the trends in ongoing research, the authors propose a concept of an advanced Digital Twin for building management as a baseline for further studies.

scholarly journals Digital Twin for Extraction Process Design and Operation

Processes ◽  
2020 ◽  
Vol 8 (7) ◽  
pp. 866 ◽  
Author(s):  
Lukas Uhlenbrock ◽  
Christoph Jensch ◽  
Martin Tegtmeier ◽  
Jochen Strube
Keyword(s):  
Process Analytical Technology ◽  
Extraction Process ◽  
Process Models ◽  
Advanced Process Control ◽  
Manufacturing Optimization ◽  
Innovative Methods ◽  
Digital Twins ◽  
Extraction Processes ◽  
Regulated Industries ◽  
Analytical Technology

Traditional extraction processes of natural product are widespread, especially in regulated industries. Possibilities of extraction development and manufacturing optimization in regulated industries is limited. Regulatory approvals are often based on traditional preparations of phyto-pharmaceuticals. The dependence on traditional processes can result in sub-optimal extraction parameters causing unnecessary costs and product variability. Innovative methods like Quality-by-Design (QbD), including process analytical technology (PAT), open opportunities for manufacturers to cope with regulatory demanded, narrow batch-to-batch variability. In addition, such validated process models represent perfect digital twins which could be utilized for advanced process control and life cycle analysis.

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