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

Decision making logic for flexible assembly lines reconfiguration

“…Such fast reconfiguration capabilities do not exist today and unless the malfunctioning robotic unit is replaced on site, the installation of a replacement robot, together with its programming can take a number of days or even weeks. Finally, there is a significant requirement for a scheduling and rescheduling logic in order to assign operations to the mobile robots in the shop floor [33][34][35]. The introduction of such an algorithm is the main focus of the current paper.…”

Method and software application to assist in the conceptual design of aircraft final assembly lines

“…The final layout determines the space requirements needed for the assigned plant. This interactive approach is valid for this kind of fixed-position assembly system, when considering the layout of a dynamic job-shop assembly environment then a heuristic based solution could be more appropriated [28].…”

“…It is highly recommended that every mean value X i is included in the interval [a i ,e i ] for the inputs of all the evaluated alternatives, for a better differentiation between them. e t = N cyc 0 · t cyc obj (27) a t = 40%e t (28) e c = cos t MAX (29) a c = 30%e t (30)…”

On the configuration of supply chains for assemble-to-order products: Case studies from the automotive and the CNC machine building sectors

“…Mutation is used in evolutionary algorithms in order to maintain the genetic diversity from one generation to the next [50]. It occurs during evolution according to the probability P mut ¼c/length of individual, where c is a user-defined constant that takes values within (0, 1) and the length of individual is static based on the length of the nodes of the alternative solutions.…”