َA Multi-objective simulated annealing algorithm to solving flexible no-wait flowshop scheduling problems with transportation times

Document Type : Original Manuscript


1 Young Researches Club, Qazvin Branch, Islamic Azad University, Qazvin, Iran

2 Young Researchers Club, Qazvin Branch, Islamic Azad University, Qazvin, Iran


This paper deals with a bi-objective hybrid no-wait flowshop scheduling problem minimizing the makespan and total weighted tardiness, in which we consider transportation times between stages. Obtaining an optimal solution for this type of complex, large-sized problem in reasonable computational time by using traditional approaches and optimization tools is extremely difficult. This paper presents a new multi-objective simulated annealing algorithm (MOSA). A set of experimental instances are carried out to evaluate the algorithm by advanced multi-objective performance measures. The algorithm is carefully evaluated for its performance against available algorithm by means of multi-objective performance measures and statistical tools. The related results show that a variant of our proposed MOSA provides sound performance comparing with other algorithms.