不可靠制造系统的一种控制策略的参数最优化

本文研究生产单类工件的两台串级机器的系统，机器是不可靠的。系统采用Ｓｕｒｐｌｕｓ Ｃｏｎｔｒｏｌ策略，该策略以每台机器的一个阈值作为控制参数。基于扰动分析方法，我们提出了一种简单的算法用于估计系统费用函数对于控制参数的梯度，并证明了估计的无偏性，仿真例子验证了算法的有效性。

Parameter Optimization of a Control Policy for Unreliable Manufacturing Systems*

We study a tandem two machine system producing one part type. The machines aresubject to failures. A policy called surplus control which features two threshold levels, each forone machine, is used to regulate the production. We propose a simple algorithm based on perturbation analysis techniques to estimate the gradient of a cost functional. It is proved that this estimate is unbiased. Examples are given to demonstrate tho algorithm.