基于搭接关系组合类型的奇异现象及特性研究

Research on Singular Phenomena and Characteristics Based on Combination Types of Spliced Relations

设计了一种搭接网络的新的表示方法,将工序之间的衔接关系等效的转化为搭接关系,并计算所有搭接关系的间隔时间(LAG),且能直接运用搭接网络法则计算时间参数,使新的表示方法具有与单代号网络计划一样的直观性和便利性.另外,利用搭接网络的新表示方法,发现了在搭接网络中"搭接关系组合类型决定了工期与工序持续时间的变化关系"这一奇异现象.通过这一奇异现象提出了研究工期优化的新思路,强化了搭接网络的应用性,使之能够更加科学地指导工程项目的实施,避免因为工期延误导致的损失,并能够扩展到其它类型的网络计划中来.

In this paper,a new representation method is designed to transform all connective relations between processes into the spliced relations,and to calculate the lag(LAG) of all spliced relations,and to make the spliced networks be intuitive and convenient like the activityon-node,and to compute time parameters by using algorithms of the spliced networks.In addition,by applying the new representations,singular phenomena were discovered in the spliced networks,which the relations between the project duration and the activity duration are determined by the combination types of spliced relations.By these singular phenomena,a new idea is put forward to study the optimization of time limit for a project,which strengthen the applicability of spliced networks,enable it to guide the implementation of engineering projects more scientifically,avoid the loss caused by the delay of time limit,and can be extended to other network plans.