The relevance of outsourcing and leagile strategies in performance optimization of an integrated process planning and scheduling

Over the past few years growing global competition has forced the manufacturing industries to upgrade their old production strategies with the modern day approaches. As a result, recent interest has been developed towards finding an appropriate policy that could enable them to compete with others, and facilitate them to emerge as a market winner. Keeping in mind the abovementioned facts, in this paper the authors have proposed an integrated process planning and scheduling model inheriting the salient features of outsourcing, and leagile principles to compete in the existing market scenario. The paper also proposes a model based on leagile principles, where the integrated planning management has been practiced. In the present work a scheduling problem has been considered and overall minimization of makespan has been aimed. The paper shows the relevance of both the strategies in performance enhancement of the industries, in terms of their reduced makespan. The authors have also proposed a new hybrid Enhanced Swift Converging Simulated Annealing (ESCSA) algorithm, to solve the complex real-time scheduling problems. The proposed algorithm inherits the prominent features of the Genetic Algorithm (GA), Simulated Annealing (SA), and the Fuzzy Logic Controller (FLC). The ESCSA algorithm reduces the makespan significantly in less computational time and number of iterations. The efficacy of the proposed algorithm has been shown by comparing the results with GA, SA, Tabu, and hybrid Tabu-SA optimization methods

An agile and adaptive holonic architecture for manufacturing control

Tese de doutoramento. Engenharia Electrotécnica e de Computadores. 2004. Faculdade de Engenharia. Universidade do Port

An introduction of small-scale intelligent manufacturing system

Embargoed OA, manuscript version after 24 months from publishing date. Link to publishers version: http://doi.org/10.1109/SIMS.2016.7802896Manufacturing companies in Northern Peripheral and Arctic region are predominately small and medium-sized and face considerable challenges like geographical isolation and a lack of benefits offered by industrial clusters. For the ultimate goal of enhancing their competitiveness in a global market, it is imperative for companies to innovate or adopt innovations in order to quickly response to changes in market, meet customer demands, reduce time-to-market and lower cost. A novel concept for small-scale intelligent manufacturing systems (SIMS) is introduced, in which diverse methods and innovative technologies can be applied and integrated. This paper gives an introduction of SIMS, defines its design objectives, and summarizes major relevant tools, techniques and paradigms for the development of SIMS, to generate a facilitative environment for small and medium-scale manufacturing enterprises to embrace new and innovative technologies

An Institutional Approach To Operations Management In Internet Based Production Concepts

An important change in the socio-economic environment of industrial firms is the increasing dif­fusion of Internet Technologies in production processes. Applications of Internet Technologies may be directly implemented on the shop floor, e.g. in networking dislocated assembly lines, as well as in assisting management processes, e.g. in production planning and control. This leads to a strong approximation of the traditional production and operation systems and the Internet Technologies. While traditional production concepts, such as Lean Production, World Class Manufacturing and Agile Manufacturing, inevitably disregard this development, new production concepts arise that fundamentally consider the application of Internet Technologies on the shop floor. However, from a business management perspective, industrial firms have to accomplish new operating requirements deriving from this technological change. This paper provides a discussion of the consequences of Internet Technologies on operations management, as well as of production concepts based on Internet Technologies from an institutional point of view

Collaborative environment to support a professional community

Dissertação apresentada na Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa para obtenção do grau de Mestre em Engenharia Electrotécnica e de ComputadoresRecent manufacturing roadmaps stress current production systems limitations, emphasizing social, economic and ecologic consequences for Europe of a non-evolution to sustainable Production Systems. Hence, both academic institutions and enterprises are committed to develop solutions that would endow enterprises to survive in nowadays’ extremely competitive business environment. A research effort is being carried on by the Evolvable Production Systems consortium towards attaining Production Systems that can cope with current technological, economical, ecological and social demands fulfilling recent roadmaps. Nevertheless research success depends on attaining consensus in the scientific community and therefore an accurate critical mass support is required in the whole process. The main goal of this thesis is the development of a Collaborative Environment Tool to assist Evolvable Production Systems consortium in such research efforts and to enhance Evolvable Assembly Systems paradigm dissemination. This work resulted in EASET (Evolvable Assembly Systems Environment Tool), a collaborative environment tool which promotes EAS dissemination and brings forth improvements through the raise of critical mass and collaboration between entities

Q'@gile: quantum agile manufacture of internal combustion engines

Current trends in the automotive industry towards fuel efficient and low emission vehicles, are dictated by more environmental friendly customers, more strict environmental legislation, rising fuel costs and intensive competition. These factors are pressuring vehicle manufacturers to speed up R&D and improve the efficiency and flexibility of their manufacturing operations so that improved products can be introduced over shortened timeframes. Recent advances have been focused on improving the design of internal combustion engines, coupled with research into alternative fuels and related new forms of vehicle propulsion. Natural impacts of these advances have been shorter engine lifetimes, increased pace of engine innovations, and significant changes in propulsion type share: in Europe the diesel engine share is increasing relative to that of petrol engines while in the US and Japan hybrids are becoming popular. In the long-term fuel cell- and hydrogen-fuelled vehicles may largely make internal combustion engines obsolete. [Continues.

Implementing supply chain strategy

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