中文摘要：

文中主要研究含有并行机器组的串行短生产线的生产性能，此生产线含有一个并行机器组及其上下游缓冲区。由概率守恒原理推导出短生产线的概率平衡方程，求得到短生产线的稳态概率，由此计算串行短生产线的性能指标：平均生产率和平均在制品数量。在Matlab平台下分析系统平均生产率与部分系统参数之间的关系。同时，建立短生产线的Petri网模型，采用事件调度法对短生产线进行仿真，将数值结果与仿真结果进行对比分析，说明文中以机器为中心的分析方法的有效性。

英文摘要：

It analyzes the performance of a short serial production line with a parallel-machine workstation and its upstream and downstream. Constrcuted its probability balance equation and evaluated its performances such as production rate and work-in-process by a nu- meric method. Analyze the relation between average production rate and particle system parameters under Matlab platform. Meanwhile, es- tablish the Petri model for this short serial production line and the short line is simulated by event scheduling. Comparing the numerical re- sult and simulation result shows that the proposed method is feasible.