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Analysis of approximately balanced production lines

机译:分析近似平衡的生产线

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This paper develops two analytical formulas for estimating the throughput of a reliable production line with exponential service times and finite intermediate buffers. The formulas apply in the case of an approximately balanced line with identical buffers or near optimal buffer allocations, where the processing times of the machines are close to each other but not necessarily the same. The derivation of the formulas is based on the standard decomposition method. Moreover, it is proved that, in general cases, both formulas provide upper bounds for the throughput obtained by the decomposition method. Numerical experiments show that the proposed formulas achieve good accuracy for approximately balanced production lines. Finally, the formulas are applied to the buffer allocation problem, and two closed-form expressions are obtained for estimating the smallest buffer capacity which is necessary to achieve the desired throughput.
机译:本文开发了两个分析公式,以估计具有指数服务时间和有限中间缓冲区的可靠生产线的吞吐量。这些公式适用于具有相同缓冲区或接近最佳缓冲区分配的近似平衡的行,其中机器的处理时间彼此接近,但不一定相同。公式的推导基于标准分解方法。此外,事实证明,在通常情况下,两个公式都为通过分解方法获得的吞吐量提供了上限。数值实验表明,所提出的公式对于近似平衡的生产线具有良好的精度。最后,将这些公式应用于缓冲区分配问题,并获得两个闭合形式的表达式,以估算实现所需吞吐量所需的最小缓冲区容量。

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