CAJ | 학술논문

在对拖轮调度问题进行分析的基础之上，将拖轮调度问题归结为一类具有多阶段共用机器特征的混合流水车间调度问题＋建立了针对多停泊基地不同作业模式下、且考虑靠泊与停泊两阶段的拖轮调度优化模型，推导了基于混合流水作业组织的港口拖轮调度优化问题的理论下界值，并设计了启发式规则与模拟退火相结合的混合算法（HSA）求解该模型．通过运用该算法求解仿真算例，并将其结果与模型理论下界值、三种基于现行调度规则及基于Johnson规则的调度方案进行比较．结果表明，运用HSA求解的结果与理论下界值的平均偏差值为5．39％，且该结果远小于基于现行调度规则及Johnson规则的求解值，验证了模型与算法的高效性，可以为拖轮作业模式的选择以及调度方案的制订提供决策支持．
재대타륜조도문제진행분석적기출지상，장타륜조도문제귀결위일류구유다계단공용궤기특정적혼합류수차간조도문제＋건립료침대다정박기지불동작업모식하、차고필고박여정박량계단적타륜조도우화모형，추도료기우혼합류수작업조직적항구타륜조도우화문제적이론하계치，병설계료계발식규칙여모의퇴화상결합적혼합산법（HSA）구해해모형．통과운용해산법구해방진산례，병장기결과여모형이론하계치、삼충기우현행조도규칙급기우Johnson규칙적조도방안진행비교．결과표명，운용HSA구해적결과여이론하계치적평균편차치위5．39％，차해결과원소우기우현행조도규칙급Johnson규칙적구해치，험증료모형여산법적고효성，가이위타륜작업모식적선택이급조도방안적제정제공결책지지．
Based on the analysis of the tugboat scheduling problem, it is formulated as a multistage hybrid flow shop scheduling problem （MHFSSP） that has the characteristics of sharing common machine sets in all stages. Combined with the scheduling theory, a tugboat scheduling model with multi-anchorage bases, different operation modes and two stages of operations （berthing/unberthing） is presented. The lower bound （LB） of the flowtime is derived from the special MHFSSP. The algorithm based on the heuristic rules and simulated annealing （HSA） is developed to solve the special MHFSSP. By the comparison of the results obtained from the algorithm with the LB and those based on three existing scheduling rules in practice and Johnson rules, the average deviation between the HSA solved results with LB is 5.39%, and the HSA solved results are far less than those from the existing scheduling rules and the Johnson rules. Thus the effectiveness and efficiency of the proposed approach were verified, which can provide supports for the decision-making on operation modes selection and operation scheduling.