Encontrados 23 documentos, a visualizar página 1 de 3
Order release in a workload controlled flow-shop with sequence-dependent set-up...
Fernandes, Nuno Octávio Garcia; Silva, Sílvio CarmoIn this paper, we report a simulation study on the role of sequence-dependent set-up times in decision making at the order release level of a workload controlled make-to-order flow-shop. The study evaluates the potential for set-ups savings, dependent on the level of workload in the shop, for two alternative strategies, namely considering set-up times centrally, within the release decision or locally, within th...
Workload control under continuous order release
Fernandes, Nuno Octávio Garcia; Silva, Sílvio CarmoPast research on workload control (WLC) has been essentially focused on discrete order release. This means that release of orders to the shop floor takes places on a periodic basis. Continuous order release has been somehow neglected, in spite of its apparent potential for improving system performance, including the reduction of order flow times. This paper addresses a simulation study of this order release app...
An application of the SMED methodology in an electric power controls company
Ribeiro, Domingos; Braga, Fernando; Sousa, Rui M.; Silva, Sílvio CarmoLean production is a strategy for high competiveness in manufacturing. The capability for economical manufacture in small batch sizes is an essential requirement for achieving lean production. This facilitates mixed production of several kinds of products to match varying product demand and can have a major impact in reducing inventories. An obvious requirement for this is the high frequency of equipment setups...
How to release orders in assembly job shops?
Fernandes, Nuno Octávio Garcia; Silva, Sílvio CarmoThis paper addresses the problem of controlling the production of complex products needing assembly operations. It presents a simulation study of how WLC release methods behave in an assembly job shop where due dates are set by customers. In particular two alternative strategies to drive the release of work orders are investigated, namely: (1) assigning the same due date and different planned release dates to e...
Web-based decision support system for industrial operations management
Magalhães, Ricardo; Varela, Maria Leonilde Rocha; Silva, Sílvio CarmoTo maintain sustainability in today’s’ global economy industrial companies must have well managed systems and operations to keep up with competition. For this they can take advantage of using Web and Internet based technologies. Such can be achieved by accessing good management resources and methods through the Internet which otherwise would not be available and, at the same time, take advantageous of collabora...
A document-oriented web-based application for supporting collaborative product ...
Rocha, Filipe; Varela, Maria Leonilde Rocha; Silva, Sílvio CarmoInnovation is a creative process strongly associated with development and deployment of new products, i.e., goods and services. This is essential in the global economy of today for sustainability and success of companies. Good collaboration between those involved in new product development is an essential requisite for this success. Such collaboration, which involves not only company stakeholders but also suppl...
Collaborative product development : a groupware system based on SOA [Service Or...
Melo, Daniel do N.; Varela, Maria Leonilde Rocha; Silva, Sílvio CarmoProduct Development (PD) can be enhanced through web-based collaboration of working teams. This collaboration enables professionals to work simultaneously on a same project, e.g. the development of a new product. Collaborative PD requires networking resources, and applications needed by collaborating teams in the design and management of product development projects. Using this collaborative approach to PD can ...
Issues and design approach for product oriented manufacturing systems
Alves, Anabela Carvalho; Silva, Sílvio CarmoThe Product Oriented Manufacturing (POM) concept here presented addresses competition in today’s changing global market of manufacturing companies. It is a challenge to the Function Oriented Manufacturing (FOM) concept supposedly adequate for dealing with demand changes and large product variety without needing reconfiguration. The POM concept evolves from the traditional cellular manufacturing, ultimately aimi...
A review of design methodologies for manufacturing systems
Alves, Anabela Carvalho; Silva, Sílvio CarmoThis paper presents a review of design methodologies for manufacturing systems, with focus on Product Oriented Manufacturing Systems (POMS). POMS organization is discussed and compared against function oriented manufacturing. The methodologies for manufacturing systems design are described and grouped in three classes: generic, specific and product oriented focused. Several methodologies in the first class are ...
Design methodologies for product oriented manufacturing systems
Alves, Anabela Carvalho; Silva, Sílvio CarmoThis paper presents a review of design methodologies for production systems, with focus on Product Oriented Manufacturing Systems (POMS). POMS organization is discussed and compared against production systems concepts. The methodologies are described and grouped in three classes: generic, specific and focused, if they provide a generic solution like a product, a tool or a system; only one type of solution, e.g....
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