動作環境の変化を考慮に入れた最適信頼性設計

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  • Optimal Reliability Design of Systems under Changing Environment
  • ドウサ カンキョウ ノ ヘンカ オ コウリョ ニ イレタ サイテキ シンライセ

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This paper presents a new formulation of an optimal reliability design problem for a system under changing environment, where the system components have time-dependent reliability. Our optimization problem is of a nonlinear mixed-integer program and its solution determines simultaneously an optimal reliability allocation and an optimal preventive maintenance schedule. A computationally economical method of solution is presented on the basis of a nonlinear programming algorithm. By use of an illustrative example, the importance of our formulation is shown in comparison with other two formulations.

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