A hybrid approach for dynamic routing planning in an automated assembly shop

Authors:
Shadi Keshavarzmanesh;Lihui Wang;Hsi-Yung Feng
Affiliations:
Department of Mechanical and Materials Engineering, The University of Western Ontario, London, Ontario, Canada N6A 5B9;Virtual Systems Research Centre, University of Skövde, 541 28 Skövde, Sweden;Department of Mechanical Engineering, The University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z4
Venue:
Robotics and Computer-Integrated Manufacturing
Year:
2010

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Abstract

Highly turbulent environment of dynamic job-shop operations affects shop floor layout as well as manufacturing operations. Due to the dynamic nature of layout changes, essential requirements such as adaptability and responsiveness to the changes need to be considered in addition to the cost issues of material handling and machine relocation when reconfiguring a shop floor's layout. Here, based on the source of uncertainty, the shop floor layout problem is split into two sub-problems and dealt with by two modules: re-layout and find-route. GA is used where changes cause the entire shop re-layout, while function blocks are utilised to find the best sequence of robots for the new conditions within the existing layout. This paper reports the latest development to the authors' previous work.