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以对口法的“减牵”优化为目标,引入“入线步长”的概念,在分析确定其递变规律的基础上,指出可编顺组号数界限值遵循“入线步长”变化规律而形成菲波纳契数列的实质;通过研究“固定空元位”的合理取定方法,明确“取空区”的构成,发现其数量变化规律及该规律与入线步长变化规律的异同;基于上述研究,提出构建“减牵”入线结构、使对口法减少作业过程次数的优化方法,确定出可编顺组号数界限值新的分布状态,体现调车作业量与可编顺组号数界限值之间更为准确的对应关系。通过分析在不同作业过程实现“减牵”而出现的作业特点,确定出相对有利的“减牵”优化环节,从而减少入线结构备选方案,使优化进程加快。深化研究后,进一步提出“双减牵”优化的方法及其采用条件,使优化达到更高水平。用实例描述本研究给出的各优化过程,验证了优化结果。指出对口法和消逆法这两种主要的入线算法,在一定条件下经优化改进后而发生的趋同化现象。
Based on the analysis of its gradual change rule, this paper pointed out that the threshold value of integrable group number follows the principle of “entry step Through the study of the reasonable method of determining the ”fixed null position“, the structure of ”take-off area“ is clarified, and the change rule of the quantity and the change of the law of the entry line Based on the above research, this paper puts forward the optimization method of constructing the ”pull-down“ in-line structure so that the counterpart method can reduce the number of work processes, and determines the new distribution state of the configurable group number threshold, Can be compiled between the group number threshold more accurate correspondence between. By analyzing the characteristics of the operations that occurred in different operations, the optimization process of ”reducing drag“ was found to be relatively favorable, so as to reduce the options of access structure and speed up the optimization process. After deepening the study, the method of ”double subtraction pull" optimization and the conditions for its adoption are further proposed so that the optimization reaches a higher level. An example is given to illustrate the optimization process given in this study and verify the optimization results. It is pointed out that the convergence algorithms of the two main algorithms of the counterparts and the counteraction method, under the certain conditions, are optimized and improved.