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Optimal Design of a Series-Parallel System with Time-Dependent Reliability

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2 Author(s)
Kyoichi Nakashima ; Department of Electronics; Himeji Institute of Technology; 2167, Shosha, Himeji-shi; Himeji 671-22 JAPAN ; Kazuharu Yamato

The paper formulates an optimal reliability design problem for a series system made of parallel redundant subsystems. The variables for optimization are the number of redundant units in each subsystem and the reliability of each unit. There is a cost-constraint. The time for which the system reliability exceeds a specified value is to be maximized. Similarly the cost could be minimized for a constraint on the mission time and reliability. A solution method for the formulated problems is presented along with an example.

Published in:

IEEE Transactions on Reliability  (Volume:R-26 ,  Issue: 2 )