scholarly journals VIRTUAL COMMISSIONING IN MACHINE TOOL MANUFACTURING: A SURVEY FROM INDUSTRY

10.6036/10244 ◽  
2021 ◽  
Vol 96 (6) ◽  
pp. 612-619
Author(s):  
Miriam Ugarte Querejeta ◽  
LEIRE ETXEBERRIA ELORZA ◽  
GOIURIA SAGARDUI MENDIETA ◽  
GORKA UNAMUNO EGUREN ◽  
IÑIGO BEDIAGA ESCUDERO
Keyword(s):  
Machine Tool ◽  
New Technologies ◽  
Manufacturing Sector ◽  
Special Focus ◽  
Time Error ◽  
Digital Twin ◽  
Empirical Survey ◽  
Virtual Commissioning ◽  
Major Interest ◽  
Manufacturing Testing

Virtual commissioning has acquired a major interest with the introduction of Industry 4.0. It is demonstrated that virtual commissioning can significantly reduce the commissioning time, error rate and costs. However, industry is still experiencing difficulties with the integration of these new technologies. This paper is one of the first empirical surveys conducted in the industry that aims at understanding the challenges and current practices with respect to virtual commissioning, with special focus on the machine tool manufacturing sector. The survey contextualizes the practice of virtual commissioning and the digital twin in industry, and benchmarks the results with academia, in which main gaps are identified. Keywords: empirical survey, virtual commissioning, digital twin, machine tool manufacturing, testing

scholarly journals Tourism and the new generations: emerging trends and social implications in Italy

2018 ◽  
Vol 4 (1) ◽  
pp. 7-15 ◽  
Author(s):  
Salvatore Monaco
Keyword(s):  
Design Methodology ◽  
New Technologies ◽  
Demographic Variables ◽  
Computer Assisted ◽  
Special Focus ◽  
Tourist Industry ◽  
Content Type ◽  
Empirical Survey ◽  
Generation Z ◽  
Emerging Trends

Purpose The purpose of this paper is to outline the profile of Italian tourists belonging to the new generations: Millennials or Generation Y (approximately people born in the 1980-1995 period) and post-Millennials or Generation Z (approximately people born in the 1996-2010 period). Design/methodology/approach After reviewing some of the more interesting research on Millennials and post-Millennials, the paper will present the results of an unpublished online empirical survey conducted on a sample of 200 Italian web users who agreed to participate. The questionnaire, administered via computer-assisted web interviewing system, consists of structured questions concerning the practices, attitudes, emerging needs and use of new technologies that characterize Millennials and post-Millennials, with a special focus on tourism. Findings The research will consider the differences between the two groups, as well as possible differences within each group linked to other socio-demographic variables (such as gender and area of residence). Originality/value The paper addresses a series of innovative questions: what are the practices of Millennials and Post-Millennials as tourists? What are the needs of these generations that the tourist industry must respond to? How do new technologies support Millennials and post-Millennials in their tourism choices? What are the main differences between Millennials and post-Millennials?

scholarly journals Gemini Principles-Based Digital Twin Maturity Model for Asset Management

2021 ◽  
Vol 13 (15) ◽  
pp. 8224
Author(s):  
Long Chen ◽  
Xiang Xie ◽  
Qiuchen Lu ◽  
Ajith Kumar Parlikad ◽  
Michael Pitt ◽  
...  
Keyword(s):  
Case Studies ◽  
Asset Management ◽  
Questionnaire Survey ◽  
New Technologies ◽  
Maturity Model ◽  
Maturity Models ◽  
Digital Twin ◽  
Project Level

Various maturity models have been developed for understanding the diffusion and implementation of new technologies/approaches. However, we find that existing maturity models fail to understand the implementation of emerging digital twin technique comprehensively and quantitatively. This research aims to develop an innovative maturity model for measuring digital twin maturity for asset management. This model is established based on Gemini Principles to form a systematic view of digital twin development and implementation. Within this maturity model, three main dimensions consisting of nine sub-dimensions have been defined firstly, which were further articulated by 27 rubrics. Then, a questionnaire survey with 40 experts involved is designed and conducted to examine these rubrics. This model is finally illustrated and validated by two case studies in Shanghai and Cambridge. The results show that the digital twin maturity model is effective to qualitatively evaluate and compare the maturity of digital twin implementation at the project level. It can also initiate the roadmap for improving the performance of digital twin supported asset management.

Digital Twin for Smart Manufacturing: The Practitioner’s Perspective

2020 ◽  
Author(s):  
Maja Bärring ◽  
Björn Johansson ◽  
Goudong Shao
Keyword(s):  
Conceptual Development ◽  
Production Systems ◽  
Manufacturing Sector ◽  
Smart Manufacturing ◽  
Digital Twin ◽  
Adoption And Implementation ◽  
New Information ◽  
Digital Twins ◽  
Discrete Manufacturing ◽  
Design Production

Abstract The manufacturing sector is experiencing a technological paradigm shift, where new information technology (IT) concepts can help digitize product design, production systems, and manufacturing processes. One of such concepts is Digital Twin and researchers have made some advancement on both its conceptual development and technological implementations. However, in practice, there are many different definitions of the digital-twin concept. These different definitions have created a lot of confusion for practitioners, especially small- and medium-sized enterprises (SMEs). Therefore, the adoption and implementation of the digital-twin concept in manufacturing have been difficult and slow. In this paper, we report our findings from a survey of companies (both large and small) regarding their understanding and acceptance of the digital-twin concept. Five supply-chain companies from discrete manufacturing and one trade organization representing suppliers in the automotive business were interviewed. Their operations have been studied to understand their current digital maturity levels and articulate their needs for digital solutions to stay competitive. This paper presents the results of the research including the viewpoints of these companies in terms of opportunities and challenges for implementing digital twins.

scholarly journals Model Quality Assessment Method Based on Support Vector Machine

2021 ◽  
Vol 25 (1) ◽  
pp. 35-39
Author(s):  
Łukasz Glodek ◽  
Szymon Bysko ◽  
Witold Nocoń
Keyword(s):  
Support Vector Machine ◽  
Quality Assessment ◽  
Industry 4.0 ◽  
Assessment Method ◽  
Support Vector ◽  
Model Quality ◽  
Digital Twin ◽  
Model Quality Assessment ◽  
Virtual Commissioning ◽  
Quality Assessment Method

This paper proposes a model quality assessment method based on Support Vector Machine, which can be used to develop a digital twin. This work is strongly connected with Industry 4.0, in which the main idea is to integrate machines, devices, systems, and IT. One of the goals of Industry 4.0 is to introduce flexible assortment changes. Virtual commissioning can be used to create a simulation model of a plant or conduct training for maintenance engineers. On a branch of virtual commissioning is a digital twin. The digital twin is a virtual representation of a plant or a device. Thanks to the digital twin, different scenarios can be analyzed to make the testing process less complicated and less time-consuming. The goal of this work is to propose a coefficient that will take into account expert knowledge and methods used for model quality assessment (such as Normalized Root Mean Square Error – NRMSE, Maximum Error – ME). NRMSE and ME methods are commonly used for this purpose, but they have not been used simultaneously so far. Each of them takes into consideration another aspect of a model. The coefficient allows deciding whether the model can be used for digital twin appliances. Such an attitude introduces the ability to test models automatically or in a semi-automatic way.

scholarly journals RADIATION HYGIENE AND SAFETY OF NUCLEAR INDUSTRY

2019 ◽  
Vol 96 (9) ◽  
pp. 868-874
Author(s):  
O. A. Kochetkov ◽  
A. P. Panfilov ◽  
V. Yu. Usoltsev ◽  
Vladimir N. Klochkov ◽  
S. M. Shinkarev ◽  
...  
Keyword(s):  
Radiation Protection ◽  
Nuclear Fuel ◽  
New Technologies ◽  
Spent Nuclear Fuel ◽  
Regulatory System ◽  
Nuclear Industry ◽  
Special Focus ◽  
Exposure Limits ◽  
The Public ◽  
Methodological Foundation

This article covers basic issues of the radiation protection in nuclear industry. It contains an overview of history of the national nuclear industry including the creation of industry-specific facilities (research centers, medical units etc.). Main stages of the creating the regulatory system for radiation protection, starting from the beginning of the industrial radiation protection, stages of introducing exposure limits and implementation of the radiation protection system in international documents are described. In 1996, for the first time, radiation protection requirements in Russia were documented in the form of the Federal Law 3-FZ of 09.01.1996 “Radiation Protection of the Public". A new stage of updating the global methodological foundation of radiation protection began in 2007. IRCP recommendations of 2007 moved from the legacy practice and intervention approach focused on the process to the approach based on characteristics of exposure situation. The evolvement of new technologies (specifically, in the field of reactor engineering and used nuclear fuel) in recent years requires a special focus on the safety of the personnel and the public. This stipulates the necessity of the appropriate radiation protection support of activities for the safe implementation of modern technologies. Handling of spent nuclear fuel and generated radioactive wastes, safe decommissioning of radiation hazardous facilities, radiation protection during operation of radiation facilities in nonstandard conditions are all the issues requiring specific examination. Regulatory and procedural documents on radiation protection of the personnel and the public during development and implementation of new technologies have been developed and approved as a result of long-term work of scientists and other professionals.

Condition Monitoring of Ship Propulsion Systems: State-of-the-Art, Development Trend and Role of Digital Twin

2021 ◽  
Author(s):  
Amir R. Nejad ◽  
Etienne Purcell ◽  
Mostafa Valavi ◽  
Roman Hudak ◽  
Benjamin Lehmann ◽  
...  
Keyword(s):  
Condition Monitoring ◽  
Performance Monitoring ◽  
State Of The Art ◽  
Development Trend ◽  
The Arctic ◽  
Special Focus ◽  
Shipping Industry ◽  
Propulsion Systems ◽  
Digital Twin ◽  
Ship Propulsion

Abstract This paper describes the current implementations and development trends of condition monitoring as it pertains to ship propulsion systems. In terms of total incidents in the shipping industry in the last five years, failures relating to the propulsion system represent the majority. Condition monitoring offers effective early detection of failure which translates to increased reliability and decreased maintenance costs. Current industrial practices are often limited to performance monitoring rather than condition monitoring. Special focus is afforded to how condition monitoring is implemented on board ships, which regulatory codes are relevant and the summary of state-of-the-art research in marine machinery. Moreover, operation and monitoring in extreme environmental conditions, such as the Arctic and Antarctic with ice impact on the propulsion has been discussed. The new developments, in particular, digital twin approaches in health and condition monitoring have been highlighted, considering its pros and cons and potential challenges.

Competing from a High Cost Economy

2014 ◽  
pp. 52-71
Author(s):  
Ian Marsh
Keyword(s):  
Public Policy ◽  
Political Economy ◽  
Policy Change ◽  
New Technologies ◽  
Manufacturing Sector ◽  
Targeted Interventions ◽  
Policy Paradigm ◽  
Starting Point ◽  
International Distribution ◽  
The Impact

The starting point for this chapter is that Australia is a high-cost economy with a fading resources boom and a diminished domestic manufacturing sector. The chapter explores the fresh challenge that these structural developments present to public policy. It argues that this requires a shift from the dominant neo-classical policy paradigm, which has to date provided the intellectual muscle for a transformation of Australia's political economy. The chapter makes the case for policies framed to foster innovation and knowledge as the approach needed for Australia to succeed in an environment characterised by the new international distribution of manufacturing, the impact of new technologies, and the prevalence of global supply chains. To realise innovation-based economic renewal requires capacities for much more targeted interventions that engage business at cluster, sectoral, and/or regional levels. The chapter concludes by considering the obstacles to, and the possibilities for, policy change.

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