【作者】 李翔； 魏汉英；

【Author】 LI Xiang WEI Han-ying (School of Business administration,North China Electric Power University Beijing 102206)

【机构】 华北电力大学工商管理学院；

【摘要】 在CPM网络计划中,一个工序结束和开始时间的变化可能会对其他工序产生影响。当它的结束时间从最早结束时间开始推迟不同的量时,或当它的开始时间从最迟开始时间开始提前不同的量时,它的后继工序或前继工序中受影响的工序数可能不同。针对该单工序对其他工序数量敏感性问题,利用工序自由时差和安全时差的概念和功能进行分析,建立某工序最早结束时间的推迟量和它的后继工序中受影响工序数之间的函数关系模型,以及某工序最迟开始时间的提前量和它的前继工序中受影响工序数之间的函数关系模型。最后,通过算例进行分析和验证。更多还原

【Abstract】 In CPM(Critical Path Method) network,variety of start and finish time in single activity may influence other activities,especially,when finish time of this activity defers different value from the earliest finish time of the activity,or when start time of this activity advances different value from the latest start time of the activity,the influenced quantity preceding and succeeding activities may have difference.In view of sensitivity analysis on single activity to quantity of other activities,by making use of the concept and function of Free Float and Safety Float,the model of function relation between the tardiness of earliest finish time and the influenced quantity of succeeding activities is set up,and the model of function relation between the advancement of the latest start time and the influenced quantity of preceding activities is set up.Finally,it is feasible and correct to use through example.更多还原