机器故障及产品废品条件下Job Shop的周期定额计划方法

本文分析了在机器故障及产品废品条件下job shop生产的周期定额计划方法，给出 了生产计划中不同作业的作业定额满足job shop外部需求的必要条件，同时给出了job shop 在一个生产计划期内完成满足此条件的作业定额时，对各个工作中心的能力需求．当job sh op中物料搬运系统的能力充裕，物料搬运对生产提前期的影响可以忽略的情形下，本文提出 了估计job shop的生产提前期的近似方法．与仿真实验结果的对比表明，估计结果有较高精 度，从而可作为job shop的性能评价及其生产管理的依据．

PERIODICAL PRODUCTION PLANNING FOR JOB SHOP SUBJECT TO MACHINE FAILURES AND SCRAPPING

In this paper, the periodical production planning method for job shop subject to machine failures and parts scrapping is studied. This study gives the necessary condition that the planned job quota for a standard production period must satisfy. The capacity requirements for each workcenter accomplishing all of its production quotas in one standard production period are also discussed. The paper proposes an approximate method for estimating the due date lead time. Experiments demonstrate the validity of the estimation method. Therefore, it can be used in production practice.