20.500.12556/DKUM-96739 An improved multi-objective firefly algorithm for integrated scheduling approach in manufacturing and assembly considering time-sharing step tariff Today, energy conservation and reduction of consumption are crucial concerns for manufacturing companies. Current research on integrated scheduling of processing and assembly typically focuses only on equipment resources and processing and assembly processes. A new method for energy-saving integrated scheduling in workshops has been proposed, which incorporates the recently introduced time-of-use tiered electricity prices into the scheduling optimization model. This method also introduces an operation strategy of turning equipment on and off during idle periods. A multi-objective mathematical model was developed to minimize energy consumption and assembly delay time in the processing and assembly processes. Due to the complexity of the model, the standard firefly algorithm was improved when used to solve the model. This involved designing a three-layer encoding method and two decoding methods, and providing detailed steps of the algorithm. Using a mixed flow production line as an example, the final scheduling solutions were obtained through model construction and algorithm solving, taking into account the tiered electricity price. The results of the example demonstrate that parallel processing and assembly effectively reduce assembly delay costs, and the implementation of the on/off strategy reduces power consumption during the machining process. energy saving integrated scheduling manufacturing and assembly time-sharing step tariff switch strategy firefly algorithm multi-objective model shranjevanje energije izdelava in montaža menjava strategije algoritem firefly true false true Chair of Production Engineering (CPE), University of Maribor Faculty of Mechanical Engineering Angleški jezik Slovenski jezik https://apem-journal.org/ Članek v reviji 2026-01-27 09:02:08 2026-01-27 09:02:09 2026-01-28 03:13:07 0000-00-00 00:00:00 2024 0 0 str. 5-20 no. 1 Vol. 19 March 2024 0000-00-00 Zaloznikova Objavljeno NiDoloceno 2023-08-11 2024-01-28 2024-04-29 658.5 266201859 10.14743/apem2024.1.489 1854-6250 APEM19-1_005-020.pdf APEM19-1_005-020.pdf 1 7854D849A4A5CBAD40617B7A88179330 a6e0ff9e8e8c47d6ec49b07a8b5cacd45ed5ccb3d812c41e21d025334844cec0 ed1a8f6c-fb56-11f0-9c79-00155d00018d https://dk.um.si/Dokument.php?lang=slv&id=202595 https://apem-journal.org/Archives/2024/Abstract-APEM19-1_005-020.html 0 f461644a-fb56-11f0-9c79-00155d00018d https://dk.um.si/Dokument.php?lang=slv&id=202596 Fakulteta za strojništvo Advances in production engineering & management 0 0 0