scholarly journals Automated Design and Integration of Asset Administration Shells in Components of Industry 4.0

Sensors ◽  
2021 ◽  
Vol 21 (6) ◽  
pp. 2004
Author(s):  
Jakub Arm ◽  
Tomas Benesl ◽  
Petr Marcon ◽  
Zdenek Bradac ◽  
Tizian Schröder ◽  
...  
Keyword(s):  
Industry 4.0 ◽  
Assembly Line ◽  
Discrete Event ◽  
Virtual Assembly ◽  
Substantial Part ◽  
Automated Generation ◽  
Open Platform ◽  
Manufacturing Management ◽  
The Given

One of the central concepts in the principles of Industry 4.0 relates to the methodology for designing and implementing the digital shell of the manufacturing process components. This concept, the Asset Administration Shell (AAS), embodies a systematically formed, standardized data envelope of a concrete component within Industry 4.0. The paper discusses the AAS in terms of its structure, its components, the sub-models that form a substantial part of the shell’s content, and its communication protocols (Open Platform Communication—Unified Architecture (OPC UA) and MQTT) or SW interfaces enabling vertical and horizontal communication to involve other components and levels of management systems. Using a case study of a virtual assembly line that integrates AASs into the technological process, the authors present a comprehensive analysis centered on forming AASs for individual components. In the given context, the manual AAS creation mode exploiting framework-based automated generation, which forms the AAS via a configuration wizard, is assessed. Another outcome consists of the activation of a virtual assembly line connected to real AASs, a step that allows us verify the properties of the distributed manufacturing management. Moreover, a discrete event system was modeled for the case study, enabling the effective application of the Industry 4.0 solution.

Study of Industry 4.0 and its Impact on Lean Transformation in Aerospace Manufacturing

2019 ◽  
Author(s):  
Sagil James ◽  
Alejandro Cervantes
Keyword(s):  
Lean Manufacturing ◽  
Industry 4.0 ◽  
Manufacturing Sector ◽  
Discrete Event ◽  
Hybrid Approach ◽  
Manufacturing Industries ◽  
Lean Principles ◽  
Aerospace Manufacturing ◽  
Lean Transformation

Abstract Lean manufacturing practices focus on minimizing all forms of waste from the production system. The applicability of lean manufacturing concepts and principles has often been questioned in sectors including aerospace manufacturing primarily due to their high variety - low volume environments. The key challenges include the difficulty in changing the factory layout, lack of plant-specific manufacturing strategies, lack of benchmarking between manufacturing plants and non-existence of learning through experimentation culture. Consequently, the aerospace manufacturing industries have struggled to implement lean principles over the years successfully. Industry 4.0 is a new paradigm that is significantly influencing several manufacturing industries across the globe. Applying the concepts of Industry 4.0 along with the conventional lean transformation technology could potentially address these challenges. The focus of this research is to study the possibilities of integrating Industry 4.0 tools with existing lean manufacturing philosophies within the aerospace manufacturing sector in order to improve various aspects of manufacturing processes in a cyber-physical environment. A case study is performed considering a quality inspection department in a typical aerospace industry. The case study is simulated using discrete event simulation tool — Arena. The study found that a hybrid approach involving the holistic merger of the lean principles along with the Industry 4.0 tools known as Lean Industry 4.0 is the best way forward for the aerospace manufacturing sector. The outcomes of this research provide an understanding of the role of industry 4.0 paradigm and their implementation in several other high-technology and high-risk manufacturing sectors including life sciences, space, and defense industries.

Design Improvement of Assembly Workplace through Ergonomic Simulation and Analysis Using DELMIA

2015 ◽  
Vol 21 ◽  
pp. 238-246 ◽  
Author(s):  
Shaban Usman ◽  
Hai Tao Zhu ◽  
Mazhar Ul Haq
Keyword(s):  
Diesel Engine ◽  
Process Improvement ◽  
Assembly Line ◽  
Virtual Assembly ◽  
Software Tool ◽  
Process Time ◽  
Simulation Environment ◽  
Manual Assembly ◽  
Time And Energy

The aim of this research is to demonstrate the ergonomic process modeling and simulation of manual assembly work through virtual assembly approach in order to present workplace and process improvement prior to their physical prototyping. In this regard, a case study has been carried out to analyze an assembly workplace of a diesel engine by ergonomics simulation and virtual assembly approach. DELMIA, a software tool, has been exploited for the ergonomic simulation and analysis in virtual assembly environment. The case study demonstrates several improvements in the ergonomics of the operators performing assembly on production line of the diesel engine. The assembly process of last few stations of the diesel engine simulated and analyzed on DELMIA in order to exhibit the advantages of the virtual assembly approach to the workplace deign and saving of process time and energy expenditure of operator. On last station of the engine assembly line, parts are assembled relatively at higher and complex positions and it is difficult for an operator to assembly them. Since, the assembly is carried out on conveyor; it is not convenient to change the height of conveyor to overcome the problem. Therefore, height of the floor of last work station is altered / increased. In order to achieve the increased floor height, a number of benches of variable heights are placed on the floor on the last working station one by one in the simulation environment and simulation of the process is carried out. The simulation results show that the ergonomics of operators have significantly changed by altering working height of the operator. Simulation of second last and other working station has also been performed by altering the height of the floor, but no improvements in the ergonomics of the operator observed for these stations

Simulation for Distributed Assembly Line Manufacturing Processes

2017 ◽  
pp. 216-237
Author(s):  
Shwetank Parihar ◽  
Chandan Bhar
Keyword(s):  
Petri Net ◽  
Assembly Line ◽  
Single Point ◽  
Point Of View ◽  
Manufacturing Processes ◽  
Operational Parameters ◽  
Manufacturing Firm ◽  
Distributed Assembly ◽  
The Given

In the given study we have undertaken a comprehensive analysis on the simulation of different products emerging out from the assembly line. The study starts from collection of point of view of different authors from various studies. Then it has been found that the system of distributed manufacturing can be used to prepare a model that can be simultaneously simulated. The introduction of systems under a bigger system is introduced for accommodating the complete supply chain in a single diagram. The system is then implemented with the help of Petri NET software and the operational parameters are analysed by the output. The case study undertaken is of a cable manufacturing firm in which the methodology suggested is implemented and it is validated that such a methodology can help on controlling the different systems from a single point of control.

scholarly journals Ontology-Based Analysis of Manufacturing Processes: Lessons Learned from the Case Study of Wire Harness Production

Complexity ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-21
Author(s):  
László Nagy ◽  
Tamás Ruppert ◽  
János Abonyi
Keyword(s):  
Industry 4.0 ◽  
Lessons Learned ◽  
Building Industry ◽  
Manufacturing Processes ◽  
Multilayer Network ◽  
Industrial Case Study ◽  
Wire Harness ◽  
Manufacturing Management ◽  
Harness Assembly

Effective information management is critical for the development of manufacturing processes. This paper aims to provide an overview of ontologies that can be utilized in building Industry 4.0 applications. The main contributions of the work are that it highlights ontologies that are suitable for manufacturing management and recommends the multilayer-network-based interpretation and analysis of ontology-based databases. This article not only serves as a reference for engineers and researchers on ontologies but also presents a reproducible industrial case study that describes the ontology-based model of a wire harness assembly manufacturing process.

An industrial case study on discrete event modelling of value stream mapping for Industry 4.0

2020 ◽  
Vol 13 (1) ◽  
pp. 90
Author(s):  
Anthony Waller ◽  
Carsten Teichert ◽  
Aparajithan Sivanathan ◽  
James Ritchie ◽  
Theodore Lim ◽  
...  
Keyword(s):  
Industry 4.0 ◽  
Discrete Event ◽  
Value Stream Mapping ◽  
Industrial Case Study ◽  
Value Stream

An industrial case study on discrete event modelling of value stream mapping for Industry 4.0

2020 ◽  
Vol 13 (1) ◽  
pp. 90
Author(s):  
Theodore Lim ◽  
Mathis Linnenbrink ◽  
James Ritchie ◽  
Aparajithan Sivanathan ◽  
Sam Harper ◽  
...  
Keyword(s):  
Industry 4.0 ◽  
Discrete Event ◽  
Value Stream Mapping ◽  
Industrial Case Study ◽  
Value Stream

scholarly journals Analysis and Improvement of Assembly Line: A Case Study at Automobile Rear-Axle Assembly Line-A PT. ZYX

2020 ◽  
Vol 19 (1) ◽  
pp. 95-107
Author(s):  
Prasti Amanda Larasari ◽  
Prianggada Indra Tanaya ◽  
Yuki Indrayadi
Keyword(s):  
Cycle Time ◽  
Assembly Line ◽  
Discrete Event ◽  
Simulation Method ◽  
Line Balancing ◽  
Event Simulation ◽  
Positional Weight ◽  
Region Approach ◽  
Selection Of

This paper explains the improvement of PT ZYX's productivity on the assembly line-A, using the production line balancing method. Four methods of line balancing were examined, namely, Ranking Positional Weight (RPW), Region Approach, J-Wagon and Kaizen. The selection of the most suitable method is made based on the reduction of number of workstation and cycle-time. Based on the result. Kaizen method shows better total cycle time, number of workstation, and number of operator required. This result is simulated using the 'Tecnomatix' software with the DES (Discrete Event Simulation) method.

Merger regulation in Central and Eastern Europe: Evidence from Hungary, Romania and Slovenia

2002 ◽  
Vol 52 (3) ◽  
pp. 327-345 ◽  
Author(s):  
T. Kravtseniouk
Keyword(s):  
Eastern Europe ◽  
Central And Eastern Europe ◽  
Merger Control ◽  
Substantial Part ◽  
Economic Competition ◽  
Close Link ◽  
Case Study Methodology ◽  
Domestic Markets ◽  
Study Methodology

This paper shows the principal features of merger control in selected transition economies of Central and Eastern Europe (CEE), namely Hungary, Romania and Slovenia, by applying case study methodology. The presented findings are based on the analysis of Hungarian, Romanian and Slovenian competition law and merger rulings reached by the Competition Offices of these countries. A substantial part of the conclusions is drawn from a sample of 42 merger applications processed by the Office of Economic Competition of Hungary between 1994 and 2000. The results of empirical analysis demonstrate the considerable flexibility of merger control in the studied countries, its orientation towards the future of domestic markets and a close link with industrial policy. The paper also highlights the areas of interdependence of competition policy and transition and argues that merger control in the studied CEE countries may be regarded as currently adequate to the requirements imposed by transition.

Literary Representations of Female Identity

2002 ◽  
Vol 19 (4) ◽  
pp. 23-41
Author(s):  
Safoi Babana-Hampton
Keyword(s):  
Related Problem ◽  
Female Identity ◽  
Literary Representations ◽  
Main Interest ◽  
Female Relationships ◽  
Arab Muslim ◽  
Feminine Writing ◽  
The Given ◽  
Female Experience

The essay examines the texts of the two women writers - Leila Abouzeid (from Morocco) and Nawal El Saadawi (from Egypt) - as offering two female perspectives within what is commonly referred to as "feminine" writing in the Arab Muslim world. My main interest is to explore the various discursive articulations of female identity that are challenged or foregrounded as a positive model. The essay points to the serious pitfalls of some feminist narratives in Arab-Muslim societies by dealing with a related problem: the author's setting up of convenient conceptual dichotomies, which account for the female experience, that reduce male-female relationships in the given social context to a fundamentally antagonistic one. Abouzeid's novel will be a case study of a more positive but also realistic and complex perspec­tive on female experience ...

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