783 research outputs found
New Shop Floor Control Approaches for Virtual Enterprises
The virtual enterprise paradigm seems a fit response to face market instability and the volatile nature of business opportunities increasing enterprise’s interest in similar forms of networked organisations. The dynamic environment of a virtual enterprise requires that partners in the consortium own reconfigurable shop floors. This paper presents new approaches to shop floor control that meet the requirements of the new industrial paradigms and argues on work re-organization at shop floor level.virtual enterprise; networked organisations
Eco‐Holonic 4.0 Circular Business Model to Conceptualize Sustainable Value Chain Towards Digital Transition
The purpose of this paper is to conceptualize a circular business model based on an Eco-Holonic Architecture, through the integration of circular economy and holonic principles. A conceptual model is developed to manage the complexity of integrating circular economy principles, digital transformation, and tools and frameworks for sustainability into business models. The proposed architecture is multilevel and multiscale in order to achieve the instantiation of the sustainable value chain in any territory. The architecture promotes the incorporation of circular economy and holonic principles into new circular business models. This integrated perspective of business model can support the design and upgrade of the manufacturing companies in their respective industrial sectors. The conceptual model proposed is based on activity theory that considers the interactions between technical and social systems and allows the mitigation of the metabolic rift that exists between natural and social metabolism. This study contributes to the existing literature on circular economy, circular business models and activity theory by considering holonic paradigm concerns, which have not been explored yet. This research also offers a unique holonic architecture of circular business model by considering different levels, relationships, dynamism and contextualization (territory) aspects
Design and implementation of a function block-based holonic control architecture for a new generation flexible manufacturing system
In this research work a control architecture which gives response to the
requirements of new generation of flexible manufacturing systems in terms
of flexibility, reconfigurability, robustness and autonomy is designed and
implemented. To do so the main principles of the Holonic Manufacturing
paradigm are applied using the IEC61499 function block (FB) technology.
Unlike other similar research proposals, in this work FBs are not relegated
to low-level control but are used to model manufacturing execution and
control high-level control tasks. This is done with the objective of
evaluating the viability of using FBs to develop holonic architectures in
comparison to more established technologies like multi-agent systems.
Moreover, the proposed control architecture also focuses on better
integrating and exploiting the products’ information to enhance its
flexibility and adaptability. For this STEP-NC (ISO14649) is used to model
richer process plans which include manufacturing alternatives and could be
easily integrated in the control itself
A holonic approach to dynamic manufacturing scheduling
Manufacturing scheduling is a complex combinatorial problem, particularly in distributed and dynamic environments. This paper presents a holonic approach to manufacturing scheduling, where the scheduling functions are distributed by several entities, combining their calculation power and local optimization capability. In this scheduling and control approach, the objective is to achieve fast and dynamic re-scheduling using a scheduling mechanism that evolves dynamically to combine centralized and distributed strategies, improving its responsiveness to emergence, instead of the complex and optimized scheduling algorithms found in traditional approaches
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