Designing a three layer supply chain considering different transportation channels and delivery time dependent demand..pdf
Creators: name: Seifbarghy, Mehdi
name: Hanie Hasanzadeh
Publisher: name: figshare
Year: 2020
Subjects: subject: 90603 Industrial Electronics
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: 90505 Infrastructure Engineering and Asset Management
subject: FOS: Civil engineering
subject: FOS: Civil engineering
subject: 91599 Interdisciplinary Engineering not elsewhere classified
subject: FOS: Other engineering and technologies
subject: FOS: Other engineering and technologies
subject: 91003 Machine Tools
subject: 91004 Machining
subject: 91099 Manufacturing Engineering not elsewhere classified
subject: 91005 Manufacturing Management
subject: 91006 Manufacturing Processes and Technologies (excl. Textiles)
subject: 91007 Manufacturing Robotics and Mechatronics (excl. Automotive Mechatronics)
subject: 91008 Manufacturing Safety and Quality
subject: 91101 Marine Engineering
subject: FOS: Environmental engineering
subject: FOS: Environmental engineering
subject: 91199 Maritime Engineering not elsewhere classified
subject: 91299 Materials Engineering not elsewhere classified
subject: FOS: Materials engineering
subject: FOS: Materials engineering
subject: Mechanical Engineering
subject: FOS: Mechanical engineering
subject: FOS: Mechanical engineering
subject: 91399 Mechanical Engineering not elsewhere classified
subject: 90304 Medical Devices
subject: FOS: Medical engineering
subject: FOS: Medical engineering
subject: 90404 Membrane and Separation Technologies
subject: FOS: Chemical engineering
subject: FOS: Chemical engineering
subject: 91207 Metals and Alloy Materials
subject: 91306 Microelectromechanical Systems (MEMS)
subject: 90604 Microelectronics and Integrated Circuits
subject: 91009 Microtechnology
subject: 91404 Mineral Processing/Beneficiation
subject: 91405 Mining Engineering
subject: 91102 Naval Architecture
subject: 90904 Navigation and Position Fixing
subject: 90405 Non-automotive Combustion and Fuel Engineering (incl. Alternative/Renewable Fuels)
subject: Nuclear Engineering
subject: 91506 Nuclear Engineering (incl. Fuel Enrichment and Waste Processing and Storage)

description: The present study is devoted to designing a three-layer supply chain including a number of plants, distribution centers, and customers, demanding for multiple products. A model is proposed in which the objective function is to maximize the profit, calculated by subtracting costs from incomes. The customers' demand is assumed to be dependent on the delivery time. In this way, the effect of delivery time is reflected in the objective function through the amount of sales and income. In this model, some distribution channels with different transportation times and costs have been considered between each pair of distribution centers and customers. The transportation costs of the channels are subjected to discounts. The decision variables of the problem are the location of distribution centers, the selection of transportation channels and the assignment of distribution centers to plants. A genetic algorithm and a variable neighborhood search are utilized to solve the problem. The numerical results show that the genetic algorithm generates solutions of higher quality while the other one has a shorter computation time. Finally, a comparison is made between the optimal solutions of this model with a similar case of fixed demand, and it is shown that considering delivery time dependent demand, leads to higher profit. <br>