iipp publishingJournal of Applied Engineering Science

RESEARCH INTO THE PROCESS OF LOADING WOOD ASSORTMENTS BY A TRACTOR-MOUNTED HYDRAULIC MANIPULATOR OF A TRACTOR-TRAILER TRAIN


DOI 10.5937/jaes17-20745
This is an open access article distributed under the CC BY-NC-ND 4.0 terms and conditions. 
Creative Commons License

Volume 17 article 617 pages: 373 - 378

Mikhail Smirnov*
Volga State University of Technology, Russia
Yurii Shirnin
Volga State University of Technology, Russia                                                   
Alexander Shirnin
Volga State University of Technology, Russia
Yurii Andrianov
Volga State University of Technology, Russia 



In order to gain competitive advantages, managers of present-day supply chain systems need to achieve critical operation goals, such as keeping flexible fabrication schedule, retaining product quality, maintaining timely delivery, and lowering overall operating costs. Inspired by these factors, this study developed a decision model for managers to investigate the joint impacts of quality-assured issues, overtime, and multi-shipment plan on optimal fabrication-shipment policy and on diverse system parameters of the economic production quantity (EPQ)-based supply chain system. An imperfect fabrication process producing perfect quality, repairable, and scrap items is assumed in the proposed system, along with assumptions of a flexible overtime schedule to partially expedite fabrication rate and a discontinuous multi-delivery policy for distributing end products. With a help from mathematical modeling and optimization method, the closed-form optimal fabrication-shipment policy is derived. A numerical example was employed to demonstrate applicability of our result and to expose critical managerial information of the system for supporting decision-making.

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