Document Type : Original Article
1 Professor, Shahid Beheshti University.
2 Department of Industrial Engineering, Faculty of Industrial and Mechanical Engineering, Qazvin Branch, Islamic Azad University, Qazvin, Iran
The redundancy allocation problem is to find an optimal allocation of redundant components by considering a set of different constraints. Solving these problems is great interest to various researchers due to its high mathematical complexity. In this research, the satellite attitude determination and control system is studied and its components are introduced, then the reliability and cost of this system are modeled and optimized by using a mathematical approach based on redundancy allocation. The model studied in this paper is about the structure of a series-parallel system that is in the exact mode of the satellite attitude determination and control system. In this paper, a new approach to modeling a bi-objective problem and optimizing it based on an exact solution method is presented. The mathematical model presented in this paper is a mixed integer non-linear programming (MINLP). In this research, a heuristic method that is implemented in 7 steps is used to find the exact solution of problem and based on this, the optimal values of reliability and cost of system design under different weights of objectives are obtained.
- redundancy allocation
- satellite attitude determination and control system
- bi-objective optimization