Solving Bi-Objective Reliability Optimization Problem of Mixed System by Firefly Algorithm

The main objective of reliability optimization of a particular system, such as a mixed or complex system, is to determine the best way to obtain an increase in the final reliability of this system by allocating high reliability to the important components of the system. In this paper, the problem of optimization reliability of the mixed system is studied using the firefly algorithm based on two cost functions, which are the logarithmic function and the exponential function. Some modifications have been made to these two functions to suit the reliability system under study, where very good results have been obtained for the overall reliability of the mixed system at a reasonable cost. Also, it was found that the overall system reliability is directly proportional to the total cost.