48 research outputs found

    Development of Bridge Information Model (BrIM) for digital twinning and management using TLS technology

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    In the current modern era of information and technology, the concept of Building Information Model (BIM), has made revolutionary changes in different aspects of engineering design, construction, and management of infrastructure assets, especially bridges. In the field of bridge engineering, Bridge Information Model (BrIM), as a specific form of BIM, includes digital twining of the physical asset associated with geometrical inspections and non-geometrical data, which has eliminated the use of traditional paper-based documentation and hand-written reports, enabling professionals and managers to operate more efficiently and effectively. However, concerns remain about the quality of the acquired inspection data and utilizing BrIM information for remedial decisions in a reliable Bridge Management System (BMS) which are still reliant on the knowledge and experience of the involved inspectors, or asset manager, and are susceptible to a certain degree of subjectivity. Therefore, this research study aims not only to introduce the valuable benefits of Terrestrial Laser Scanning (TLS) as a precise, rapid, and qualitative inspection method, but also to serve a novel sliced-based approach for bridge geometric Computer-Aided Design (CAD) model extraction using TLS-based point cloud, and to contribute to BrIM development. Moreover, this study presents a comprehensive methodology for incorporating generated BrIM in a redeveloped element-based condition assessment model while integrating a Decision Support System (DSS) to propose an innovative BMS. This methodology was further implemented in a designed software plugin and validated by a real case study on the Werrington Bridge, a cable-stayed bridge in New South Wales, Australia. The finding of this research confirms the reliability of the TLS-derived 3D model in terms of quality of acquired data and accuracy of the proposed novel slice-based method, as well as BrIM implementation, and integration of the proposed BMS into the developed BrIM. Furthermore, the results of this study showed that the proposed integrated model addresses the subjective nature of decision-making by conducting a risk assessment and utilising structured decision-making tools for priority ranking of remedial actions. The findings demonstrated acceptable agreement in utilizing the proposed BMS for priority ranking of structural elements that require more attention, as well as efficient optimisation of remedial actions to preserve bridge health and safety

    3-я Міжнародна конференція зі сталого майбутнього: екологічні, технологічні, соціальні та економічні аспекти (ICSF 2022) 24-27 травня 2022 року, м. Кривий Ріг, Україна

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    Матеріали 3-ої Міжнародної конференції зі сталого майбутнього: екологічні, технологічні, соціальні та економічні аспекти (ICSF 2022) 24-27 травня 2022 року, м. Кривий Ріг, Україна.Proceedings of the 3rd International Conference on Sustainable Futures: Environmental, Technological, Social and Economic Matters (ICSF 2022) 24-27 May 2022, Kryvyi Rih, Ukraine

    Expanding the Horizons of Manufacturing: Towards Wide Integration, Smart Systems and Tools

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    This research topic aims at enterprise-wide modeling and optimization (EWMO) through the development and application of integrated modeling, simulation and optimization methodologies, and computer-aided tools for reliable and sustainable improvement opportunities within the entire manufacturing network (raw materials, production plants, distribution, retailers, and customers) and its components. This integrated approach incorporates information from the local primary control and supervisory modules into the scheduling/planning formulation. That makes it possible to dynamically react to incidents that occur in the network components at the appropriate decision-making level, requiring fewer resources, emitting less waste, and allowing for better responsiveness in changing market requirements and operational variations, reducing cost, waste, energy consumption and environmental impact, and increasing the benefits. More recently, the exploitation of new technology integration, such as through semantic models in formal knowledge models, allows for the capture and utilization of domain knowledge, human knowledge, and expert knowledge toward comprehensive intelligent management. Otherwise, the development of advanced technologies and tools, such as cyber-physical systems, the Internet of Things, the Industrial Internet of Things, Artificial Intelligence, Big Data, Cloud Computing, Blockchain, etc., have captured the attention of manufacturing enterprises toward intelligent manufacturing systems

    Sistema de Inspeção de Paletes

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    A presente dissertação, desenvolvida no âmbito do 2º ano do Mestrado em Engenharia Eletrotécnica e de Computadores, com especialização em Automação e Sistemas, surgiu como conclusão de um projeto, em contexto industrial, realizado na Körber Supply Chain PT. O projeto apresentado surge no sentido de desenvolver um sistema de inspeção de paletes com recurso ao mínimo de elementos mecânicos possíveis, que seja capaz de substituir o atual sistema totalmente mecânico. Iniciou-se, com uma revisão do estado da arte, com o objetivo de verificar que tipos de sistemas de inspeção de paletes existem no mercado, quais os trabalhos académicos realizados sobre o tópico, quais os sensores que são possíveis de usar para a inspeção de paletes, software existente para o tratamento de dados provenientes desses mesmos sensores, um aprofundamento sobre os PLC e por fim quais as normas existentes para a construção/inspeção de paletes. Posteriormente, para se definir os requisitos necessários para a criação do novo sistema, foi necessário analisar o sistema atual, quais os seus componentes, como funciona, quais os seus problemas e por fim quais os erros que consegue identificar. Após se ter identificado quais os requisitos necessários, procedeu-se à construção do novo sistema de inspeção de paletes. Este sistema tem como elemento principal um sensor LiDAR, sendo que foram feitos alguns testes iniciais para determinar qual o melhor sensor LiDAR disponível na empresa. Este comunica diretamente com um PLC e este com uma consola HMI simulada. Este sensor LiDAR através do seu software permite desenhar 3 áreas, sendo que caso algum objeto se encontre numa dessas áreas é enviado um sinal digital ao PLC para tratamento e visualização na consola. Para validação da performance do sistema foram efetuados diversos testes com várias paletes com diferentes tipos de defeitos. Através destes testes foi possível determinar o que era possível identificar com este sistema e qual o fator que está a limitar esta aplicação, verificando-se que em movimento o tempo de resposta do sistema era limitativa. Por fim verificou-se que apesar de este sistema de inspeção de paletes atingir quase todos os requisitos pretendidos, ficava aquém quando o erro a detetar era plástico transparenteThe present dissertation, developed within the scope of the 2nd year of the Master in Electrical and Computer Engineering, with a specialization in Automation and Systems, emerged as the conclusion of a project, in an industrial context, carried out at Körber Supply Chain PT. The project presented arises in the sense of developing a pallet inspection system using the least possible mechanical elements, which is capable of replacing the current fully mechanical system. It began with a review of the state of the art, with the objective of verifying what types of pallet inspection systems exist on the market, what academic works have been carried out on the topic, what sensors are possible to use for the inspection of pallets, existing software for processing data from these same sensors, an in-depth look at PLCs and finally what are the existing standards for the construction/inspection of pallets. Subsequently, in order to define the necessary requirements for the creation of the new system, it was necessary to analyze the current system, what are its components, how it works, what are its problems and finally what errors it can identify. After identifying the necessary requirements, the construction of the new pallet inspection system was carried out. This system has a LiDAR sensor as its main element, and some initial tests were carried out to determine the best LiDAR sensor available in the company. It communicates directly with a PLC and the latter with a simulated HMI console. This LiDAR sensor, through its software, allows you to draw 3 areas, and if an object is in one of these areas, a digital signal is sent to the PLC for processing and visualization on the console. To validate the system's performance, several tests were carried out with several pallets with different types of defects. Through these tests it was possible to determine what was possible to identify with this system and which factor is limiting this application, verifying that in motion the response time of the system was restrictive.Finally, it was found that although this pallet inspection system reached almost all the requirements, it was not the desired when the error to be detected was transparent plastic

    Challenges for engineering students working with authentic complex problems

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    Engineers are important participants in solving societal, environmental and technical problems. However, due to an increasing complexity in relation to these problems new interdisciplinary competences are needed in engineering. Instead of students working with monodisciplinary problems, a situation where students work with authentic complex problems in interdisciplinary teams together with a company may scaffold development of new competences. The question is: What are the challenges for students structuring the work on authentic interdisciplinary problems? This study explores a three-day event where 7 students from Aalborg University (AAU) from four different faculties and one student from University College North Denmark (UCN), (6th-10th semester), worked in two groups at a large Danish company, solving authentic complex problems. The event was structured as a Hackathon where the students for three days worked with problem identification, problem analysis and finalizing with a pitch competition presenting their findings. During the event the students had workshops to support the work and they had the opportunity to use employees from the company as facilitators. It was an extracurricular activity during the summer holiday season. The methodology used for data collection was qualitative both in terms of observations and participants’ reflection reports. The students were observed during the whole event. Findings from this part of a larger study indicated, that students experience inability to transfer and transform project competences from their previous disciplinary experiences to an interdisciplinary setting

    Industrial Applications: New Solutions for the New Era

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    This book reprints articles from the Special Issue "Industrial Applications: New Solutions for the New Age" published online in the open-access journal Machines (ISSN 2075-1702). This book consists of twelve published articles. This special edition belongs to the "Mechatronic and Intelligent Machines" section

    Proceedings of the 19th Sound and Music Computing Conference

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    Proceedings of the 19th Sound and Music Computing Conference - June 5-12, 2022 - Saint-Étienne (France). https://smc22.grame.f
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