关键词: 劣化系统, 经济生产批量, 质量控制, 视情维护, 蒙特卡洛仿真, 响应曲面法

Abstract: Aiming at the problem that the equipment condition information cannot be obtained in real time,the quality information feedback was taken as the important basis of evaluation system to formulate the maintenance policy.Both the equipment information obtained at the end of production lot and the quality information feedback were used to assist maintenance decision-making,which could ensure the fast response of maintenance.By using total probability decomposition method,a mathematical model of average cost rate was developed to simultaneously determine the optimal values of lot size and the thresholds of quality control and maintenance.Due to the high complexity of the model,a simulation-based optimization approach coupling Monte Carlo Simulation and Response Surface Methodology was devised to solve the optimization problem.An illustrative example was provided to demonstrate the effectiveness of proposed model.The influence of the parameters on the optimal policy was investigated by sensitivity analysis.

Key words: imperfect system, economic production quantity, quality control, condition-based maintenance, Monte Carlo simulation, response surface methodology