scholarly journals Analysis of Digital Twin Definition and Its Difference from Simulation Modelling in Practical Application

2020 ◽  
Author(s):  
I.I. Krasikov ◽  
A. N. Kulemin
Keyword(s):  
Mathematical Model ◽  
Model Simulation ◽  
Simulation Modelling ◽  
Practical Application ◽  
Product Lifecycle ◽  
Digital Twin ◽  
Common Definition ◽  
Model And Simulation ◽  
Digital Twins ◽  
Definition Of

The digital twin is widely known as a tool for digitalization of a product, but there is no common definition concerning this term. This article discusses the definition and utilization of digital twin. Areas of use, it’s implementation in the product lifecycle and most importantly it’s benefits. The lack of a standardized concept of a digital  twin leads to a misunderstanding between mathematical models and digital twin. Several definitions of digital twin were analyzed and compared with the definition of mathematical model and simulation modelling. The basic concept of areas of use for digital twin is introduced. The differences and similarities between the two definitions were found. The article aims first of all to help the management of digital twins in practical application. Keywords: Digital twin, Mathematical modelling, Mathematical model, Lifecycle of a product, Simulation modelling, Practical use of digital twin, Difference between the digital twin and mathematical model, Simulation.

scholarly journals A BIM-Info delivery protocol

2015 ◽  
Vol 12 (4) ◽  
pp. 39-52 ◽  
Author(s):  
Martin Hooper ◽  
Anders Ekholm
Keyword(s):  
Information Management ◽  
Information Delivery ◽  
Theoretical Problem ◽  
Practical Application ◽  
3D Design ◽  
Common Definition ◽  
Design Coordination ◽  
Definition Of ◽  
Residential Projects ◽  
Delivery Protocol

Today, with many of the technological issues of integrated information management resolved (perhaps excluding the matter of interoperability), defining the content and status of BIM information deliveries remains both a practical and a theoretical problem. New BIM tools and new design processes and procedures have led to a certain confusion of what information is needed for particular BIM uses. This paper seeks to explore and enable a method of defining the content of model information deliverables through a review of 2 key primary specific BIM uses: 3d Design Coordination and Early Energy Appraisal through an analysis of practical application. The scope of this study is limited to a review of information flow within residential projects in a Swedish context and looks at two projects with a view to identify and establish a common definition of the key BIM objects and properties necessary for particular tasks. The key deliverable from this study is the BIM-Info Delivery Protocol (IDP) which attempts to align consultant BIM-information delivery expectations and represents a tangible solution to assist consultants to manage BIM information. Concluding reflections consider the positioning of the IDP relative to the on-going development of IDMs / MVDs and highlight the key constituent parameters of an Information Delivery Specification (IDS).  

scholarly journals Closed-Loop Digital Twin for the Product Lifecycle

2021 ◽  
Author(s):  
Luiz Fernando C. S. Durão ◽  
Eduardo Zancul ◽  
Klaus Schützer
Keyword(s):  
Closed Loop ◽  
Product Lifecycle ◽  
Digital Representation ◽  
Digital Twin ◽  
Twin Model ◽  
Manufacturing Optimization ◽  
Data Analyses ◽  
Physical Product ◽  
Open Issue ◽  
Definition Of

Abstract Digital Twin advances have provided the conceptual ground for integrating a physical product with its digital representation. However, Digital Twin implementation has been focused on the beginning of life and manufacturing optimization, leaving space for developing a Digital Twin model that encompasses and connects different stages of the entire product lifecycle. In this scenario, the integration between company-internal data with real-time customers' data is still a challenge. Besides, implementing such a model in a multiplatform environment is also an open issue in the literature. This paper proposes the definition of a Closed-loop Digital Twin implemented as a middleware software that connects PLM, ERP, and MES data with customers' usage data. The proposed concept was implemented and tested in a learning factory. Results demonstrated the concept potential to consolidate product data, support data analyses, and provide insights for different stages of the product lifecycle.

The DIM Approach for Digital Twin

2021 ◽  
pp. 153-171
Author(s):  
Matteo Del Giudice
Keyword(s):  
Information And Communication Technologies ◽  
Communication Technologies ◽  
Heterogeneous Data ◽  
Digital Twin ◽  
Innovative Methods ◽  
Digital Twins ◽  
Modelling Methodology ◽  
Information And Communication ◽  
Virtual City ◽  
Definition Of

In the era of connections and information and communication technologies, the building industry is facing the challenge of digitization at the building and urban scale. Several researches have been carried out to generate virtual city models to manage and represent a variety of data to reach the smart city concept. Therefore, the development of building/urban digital twins is directly linked to the definition of innovative methods and tools that are able to collect, organize, query heterogeneous data to make it available for the various involved actors. This chapter aims at presenting the district information modelling methodology that is strictly related to the digital twin concept, starting with data domains, arriving at the various tools developed to reach the users' needs.

scholarly journals DIGITAL TWINS - DEFINITIONS, CLASSES AND BUSINESS SCENARIOS FOR DIFFERENT INDUSTRY SECTORS

2021 ◽  
Vol 1 ◽  
pp. 1293-1302
Author(s):  
Fabian Wilking ◽  
Benjamin Schleich ◽  
Sandro Wartzack
Keyword(s):  
Product Portfolio ◽  
Digital Twin ◽  
Digital Twins ◽  
Definition Of ◽  
Industry Sectors ◽  
New Industry

AbstractOver the recent years, several attempts were made to define the concept of the Digital Twin and to create a generic view for utilizing it within the industry. Still, many industry sectors are not able to transfer a generic definition into their product portfolio, as Digital Twins differ from each other to the same degree as physical products differ from each other. Hence, it is crucial to enlarge the definition towards a classification and business scenarios which enable sector specific views on the concept of the Digital Twin and help SME to utilize the concept towards their products. Future engineers will have to design physical products besides a digital counterpart and therefore have to identify interdependencies between these two products during the development. This paper discusses a generic definition of a Digital Twin that can be applied throughout different sectors as well as a classification for Digital Twins to enable the implementation of the concept on several maturity levels regarding the constraints of the product portfolio. In addition, these classes are viewed in different business scenarios and an outlook is given to further increase the usability of Digital Twins within new industry sectors.

scholarly journals HYBRID MODEL FOR CONSTRUCTING INDIVIDUAL EDUCATIONAL TRAJECTORY BASED ON DIGITAL TWINS

2021 ◽  
Vol 2021 (4) ◽  
pp. 126-136
Author(s):  
Nadezhda Kaznacheeva ◽  
Aleksey Poletaykin ◽  
Lyubov' Danilova Filippovna ◽  
Sergey Gennadievich Sinitsa
Keyword(s):  
Mathematical Model ◽  
Labor Market ◽  
Educational Program ◽  
Structural Model ◽  
Educational Standards ◽  
Regulatory Requirements ◽  
Educational Content ◽  
Digital Twin ◽  
Proactive Management ◽  
Digital Twins

The article focuses on building an individual educational trajectory of a university student. This concept is formalized in the form of a hybrid mathematical model. This model is based on a structural model of educational competence. In this case, the competence is a basic construct of the educational program, it acts as a prototype of the structural model of individualized educational content. The main source of semantic and control information is the digital twin sys-tem. The digital double of the educational program formalizes its structure and content in strict ac-cordance with the regulatory requirements of federal state educational standards. The digital twin of a student fixes and processes his digital tracks throughout his life. The digital twin of the labor market formalizes the structure of a certain segment of the labor market in the context of the re-quirements for professional and personal qualities of specialists. There has been substantiated the need for proactive management of restructuring and rebranding the professional educational pro-grams in accordance with the changes at the labor market. A significant contribution to the man-agement of these evolutionary processes is made by the dynamics of a student’s activity, which is reflected in his digital traces. Hybridization of these digital twins into the system of constructing individual educational trajectory allows the semantic marking and weighing of the educational situation and projected content. Based on a suspended educational content and taking into account the regulatory requirements of educational standards and additional requirements of the educational organization, optimization modeling of an individual educational trajectory in its structural and meaningful context is carried out. The study of the structural features of the constructed hybrid mathematical model made it possible to determine and substantiate its rational structure.

scholarly journals WHAT IS A DIGITAL TWIN? – DEFINITIONS AND INSIGHTS FROM AN INDUSTRIAL CASE STUDY IN TECHNICAL PRODUCT DEVELOPMENT

2020 ◽  
Vol 1 ◽  
pp. 757-766 ◽  
Author(s):  
J. Trauer ◽  
S. Schweigert-Recksiek ◽  
C. Engel ◽  
K. Spreitzer ◽  
M. Zimmermann
Keyword(s):  
Product Development ◽  
Physical System ◽  
Data Exchange ◽  
Literature Study ◽  
Industrial Case Study ◽  
Technical Product ◽  
Digital Twin ◽  
Digital Twins ◽  
Definition Of

AbstractOver the last two decades, a concept called Digital Twin has evolved rapidly. Yet, there is no unified definition of the term. Based on a literature study and an industrial case study, an overarching definition of Digital twins is presented. Three characteristics were identified – representation of a physical system, bidirectional data exchange, and the connection along the entire lifecycle. Further, three sub-concepts are presented, namely: Engineering Twin, Production Twin, and Operation Twin. The presented paper thus formulates a consistent and detailed definition of Digital Twins.

Research on Mechanical Dynamics in DC Servo Motor Adjustment System Based on Applied Technology

2014 ◽  
Vol 908 ◽  
pp. 256-259
Author(s):  
Hong Ying Wang ◽  
Bin Liu
Keyword(s):  
Mathematical Model ◽  
Static Characteristics ◽  
Servo Motor ◽  
Practical Application ◽  
Model And Simulation ◽  
Applied Technology ◽  
Adjustment System ◽  
Mechanical Dynamics ◽  
The Mathematical Model ◽  
Speed Adjustment

This article has made the mathematical model and simulation, and provides the reliable theory basis for practical application of speed adjustment, through the research on DC servo motor adjustment system, and analysis of dynamic and static characteristics of Single loop with current positive feedback and voltage negative feedback speed adjustment system.

scholarly journals Maritime Digital Twin architecture

2021 ◽  
Vol 69 (12) ◽  
pp. 1081-1095
Author(s):  
Jan-Erik Giering ◽  
Alexander Dyck
Keyword(s):  
Use Cases ◽  
Maritime Industry ◽  
Product Lifecycle ◽  
Political Pressure ◽  
Digital Twin ◽  
Current State ◽  
Delivery Costs ◽  
Digital Twins ◽  
Insight Into

Abstract Digital Twins (DTs) play an important role in current digitalization trends across industries. As maritime markets are particularly affected by recent global tendencies such as increasing delivery costs or political pressure for decarbonization, DT solutions could provide important support for shipbuilding and shipping companies to master recent and upcoming challenges. This paper provides a brief insight into the current state of the maritime industry and shows possible use-cases for DT Ship applications throughout the entire product lifecycle. To further advance the general understanding of DTs and their implementation, the concept of a Maritime Digital Twin Architecture (MDTA) is proposed to structure practical DT features.

scholarly journals Scholarly Views on Theory: Its Nature, Practical Application, and Relation to World View in Business Research

2017 ◽  
Vol 12 (9) ◽  
pp. 231
Author(s):  
Jason Earl Thomas
Keyword(s):  
World View ◽  
Business Students ◽  
Challenging Problem ◽  
Practical Application ◽  
Business Research ◽  
Common Definition ◽  
Body Of Knowledge ◽  
New Graduate ◽  
Definition Of ◽  
Theory Use

Understanding theory, its practical application, and how to select a theoretical framework for research studies is often a challenging problem for new graduate and doctoral business students. As these students explore theory use in various fields and the general academic body of knowledge, this task can become even more daunting and confusing. There does not appear to be a common definition of theory across or within different disciplines. Further, scholars disagree on the value of theory and its practical application. This paper explores the scholarly nature of theory, its application, and its relationship to world view. Examples and a discussion are provided to better help students absorb this important yet ambiguous topic.

scholarly journals Pipeline for ontology-based modeling and automated deployment of digital twins for planning and control of manufacturing systems

2021 ◽  
Author(s):  
Amon Göppert ◽  
Lea Grahn ◽  
Jonas Rachner ◽  
Dennis Grunert ◽  
Simon Hort ◽  
...  
Keyword(s):  
Data Exchange ◽  
Manufacturing Systems ◽  
Digital Model ◽  
Use Case ◽  
Digital Twin ◽  
Planning And Control ◽  
Digital Twins ◽  
Definition Of ◽  
Fully Connected ◽  
And Control

AbstractThe demand for individualized products drives modern manufacturing systems towards greater adaptability and flexibility. This increases the focus on data-driven digital twins enabling swift adaptations. Within the framework of cyber-physical systems, the digital twin is a digital model that is fully connected to the physical and digital assets. A digital model must follow a standardization for interoperable data exchange. Established ontologies and meta-models offer a basis in the definition of a schema, which is the first phase of creating a digital twin. The next phase is the standardized and structured modeling with static use-case specific data. The final phase is the deployment of digital twins into operation with a full connection of the digital model with the remaining cyber-physical system. In this deployment phase communication standards and protocols provide a standardized data exchange. A survey on the state-of-the-art of these three digital twin phases reveals the lack of a consistent workflow from ontology-driven definition to standardized modeling. Therefore, one goal of this paper is the design of an end-to-end digital twin pipeline to lower the threshold of creating and deploying digital twins. As the task of establishing a communication connection is highly repetitive, an automation concept by providing structured protocol data is the second goal. The planning and control of a line-less assembly system with manual stations and a mobile robot as resources and an industrial dog as the product serve as exemplary digital twin applications. Along this use-case the digital twin pipeline is transparently explained.

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