Digital Twin of a Cutting Tool Botkina, Darya; Hedlind, Mikael; Olsson, Bengt ...
Procedia CIRP,
2018, 2018-00-00, Volume:
72
Journal Article
Peer reviewed
Open access
This paper focuses on a digital twin of a cutting tool as a digital replica of a physical tool, its data format and structure, information flows and data management, as well as possibilities for ...further applications and analysis of productivity. Data are collected throughout the production lifecycle in an accurate way, using the international standard ISO 13399 and messaging based on the previously developed event-driven line information system architecture (LISA) with IoT functionality. The digital twin is tweeted to be stored, refined and propagated to the process planning for an optimized machining solution.
To control manufacturing processes, integration of flows of manufacturing information is an important starting point. In this regard, an effective Integrated Manufacturing Information System (IMIS) ...which is capable of monitoring, analyzing, and inspecting manufacturing processes properly is critical. Often, most of difficulties in achieving an effective IMIS stem from a poor design for the system architecture. This study particularly addresses the problem of coupling in architecture of an IMIS and its effect on the system performance. This study employs “Independence Axiom” of the Axiomatic Design (AD) theory to deal with the problem and uses “times in process” and “utilized capacities of available resources” as two important criteria for evaluating the system performance. To verify the proposed methodology, a real IMIS is addressed, its stochastic behavior is simulated in Visual SLAM and AweSim (version 3.o) software environment, and the outcomes are analyzed by using logistic regression method for each level of system decomposition. Results of the analyses indicate that fulfillment of independence axiom of AD theory can significantly enhance performance of the concerned IMIS.
The present study addresses integrated manufacturing information systems (IMIS) and highlights importance of realizing 'adaptability' and 'reconfigurability' characteristics in the system ...architecture of IMISs, where engineering design for system adaptability is interested. This study develops a matrix-based probabilistic definition for the manufacturing information system (MIS) reconfigurability and proposes modularization of physical architecture of the system as an effective design solution for fulfilling system reconfigurability and adaptability requirements. To modularize the physical architecture, Design Structure Matrix (DSM) method is employed. Moreover, information axiom of Axiomatic Design (AD) theory is also utilized to develop helpful indicators for evaluating the adaptability characteristic for the architecture and support engineering designers to make sound decisions in design for adaptability. To verify the developed methodology, the MIS in a real case (Barez Industrial Group in Iran) is addressed and design of the physical architecture for this system is studied. A new optimally modularized design for the physical architecture of the MIS of interest is finally presented and examined. Results of the indicators reflecting reconfigurability and adaptability of the architecture indicate that the new proposed design of the concerned MIS is highly capable of coping with the rapidly changing manufacturing environment.
Modern business management depends on information technology (IT) deeply. However, most companies, especially manufacturing, are not good at IT. But IT is very important and complex to the ...manufacturing industry. Numerous manufacturing now outsource their information system (IS) projects to Information Service Providers (ISP) instead of developing in-house. This work classifies the critical objectives for selecting manufacturing information system outsourcing projects into benefit-related objectives and cost-related objectives and then formulates a goal programming (GP) model. Interactions between manufacturing information system projects and availability of scarce resources are also considered into constraints of the model. However, because of the incommensurability and conflicting nature of these objectives, the GP model becomes complex. The method called 'technique for order preference by similarity to ideal solution' (TOPSIS) and the fuzzy set theory are employed to simplify the complex GP solving process and reflect the preferences of managers. A case study of a TV assembly company in Taiwan illustrates the feasibility of the proposed model.
Currently, networked manufacturing is regarded as a new manufacturing mode. Extended enterprise is a type of new organizational mode of enterprises for networked manufacturing, which has become the ...key point for enterprises winning competitions in global markets. Nowadays, many researches and major contributions have been found on networked manufacturing and extended enterprise from academic to industrial areas. However, they mainly focus on partial conceptual/theoretical and practical application fields. How to build the models for networked manufacturing and extended enterprise, satisfactorily control the manufacturing processes at the level of extended enterprise, etc. is becoming a bottleneck. In order to overcome these limitations, on the basis of the philosophy of services driving manufactures, a kind of e-service-driven networked manufacturing model is put forward. In order to implement this model some key enabling techniques are discussed in detail. These include: e-formalizing bottom manufacturing resources; up-streaming manufacturing data; generating an extended enterprise tree that consists of core enterprise and co-enterprises based on products to be manufactured; configuring a networked manufacturing executive system at the level of extended enterprise; scheduling the manufacturing processes by means of the bottom-up strategy; tracking the manufacturing processes in the range of extended enterprise; and collaborating in the manufacturing processes. Furthermore, a test bed called e
2
-MES is developed with Java web solution. The running example from the industry indicates that the above ideas are feasible and practical.
This paper addressed a data modelling and functionality evaluation of traceability system requirements and its implementation for small- to medium-sized enterprises (SMEs). The major idea is to ...convert the data structure and system behaviour arising from traceability requirement into modelling using data modelling techniques in a user-friendly and economical way. Then, based on a case study the paper expounds the methodology by implementing the model to a computerised traceability information system. The system can manipulate operation data as well as quality data dynamically to keep the traceability information up to date and useful. The solution responds to all traceability requirements of integrity, data collecting, linking, and guarantees different types of lists and reports in the support of quick decision making with minimal human efforts.
This paper addressed a data modelling and functionality evaluation of traceability system requirements and its implementation for small- to medium-sized enterprises (SMEs). The major idea is to ...convert the data structure and system behaviour arising from traceability requirement into modelling using data modelling techniques in a user-friendly and economical way. Then, based on a case study the paper expounds the methodology by implementing the model to a computerised traceability information system. The system can manipulate operation data as well as quality data dynamically to keep the traceability information up to date and useful. The solution responds to all traceability requirements of integrity, data collecting, linking, and guarantees different types of lists and reports in the support of quick decision making with minimal human efforts.
The paper describes the design and implementation of a Manufacturing Information System as a solution to share and exchange manufacturing data. The Manufacturing Information System possesses relevant ...features for data sharing and exchanging, that are compliant to the standard ISO 10303, known as STEP1. It is known that manufacturing planning and execution activities require data from machine-tools, robots, ASRSs2, AGVs3 and, on the other hand, computer-based applications (CAM4, CAPP5 or PAC6) use proprietary formats to store flexible manufacturing resources data. The way the proprietary formats are built has lead to incompatibilities and interoperability problems among the applications. It is argued that by solving these problems a qualitative functional synergy will result during manufacturing planning and execution activities. The suggested solution is using a STEP-based information system, a server and a prototype client application. These three programs are implemented in Java classes to facilitate data sharing and exchanging of flexible manufacturing resources. PUBLICATION ABSTRACT
When developing a manufacturing information system, it is difficult to complete a system that has no omissions even with extensive planning. Instead, to respond to the changes in the demand of the ...user and the market, new components focused on clear and urgent situations, are sequentially implemented to the information system as an improvisational approach that seems highly effective. In this study, various problems that occur when the manufacturing information system such as for products line is constructed are discussed, and this paper proposes the adopting of an improvisational approach. In addition, the effectiveness of this proposal is examined through actual cases using the manufacturing information system that the authors developed.
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