%0 Journal Article %T A Bi-objective Model for a Flowshop Scheduling Problem with Availability Constraint of Machines %J Advances in Industrial Engineering %I University of Tehran %Z 2783-1744 %A Rezaei Malek, Mohammad %A Tavakkoli Moghaddam, Reza %A Evaz Abadian, Farshid %D 2014 %\ 09/23/2014 %V 48 %N 2 %P 189-200 %! A Bi-objective Model for a Flowshop Scheduling Problem with Availability Constraint of Machines %K Permutation flowshop scheduling %K Preventive maintenance %K Earliness and tardiness %K Cmax %K Bi-objective optimization %R 10.22059/jieng.2014.52913 %X  This paper presents a new bi-objective mathematical model for a permutation flowshop scheduling problem with availability constraint in case of preventive maintenance operations on machines. In this paper, preventive maintenance is flexible and there is not a certain time for the maintenance operation; however, time between two consecutive maintenance operations for each machine should not be greater than a given time. The model has two objectives; (1) minimizing the makespan (i.e., Cmax) and, (2) minimizing the sum of earliness and tardiness simultaneously. This study reports the results obtained by the Reservation Level Tchebycheff Procedure (RLTP) and the ε-constraint method for solving a case study problem. The results show high quality of reached solutions from RLTP in comparison with the ε-constraint method. %U https://aie.ut.ac.ir/article_52913_e45b32259e066802d748902278f0fbaa.pdf