| 基于改进FCPM的工程项目施工动态规划研究 |
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| 引用本文： | 刘大江.基于改进FCPM的工程项目施工动态规划研究[J].唐山学院学报,2022,35(6):8-16,40. |
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| 作者姓名： | 刘大江 |
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| 作者单位： | 唐山学院 土木工程学院, 河北 唐山 063000 |
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| 摘 要： | 鉴于工程实践中项目的不确定性状态,以梯形模糊数的等效参数形式表达项目各项活动的持续时间,开展基于改进的模糊关键路径法(FCPM)的施工动态规划研究。有机整合向量的范数相似度和方向相似度,提出了向量集成相似度排序算法,有效地解决了关键路径识别中梯形模糊数的排序问题;采用修正的模糊减运算标准算法成功消除了模糊时间参数计算过程中的不可行解问题,并实现了对模糊状态下项目网络关键路径动态变化轨迹的刻画。实证分析证明,改进的FCPM求解施工动态规划问题具有合理性和有效性。
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| 关 键 词： | 关键路径法 施工动态规划 梯形模糊数 向量集成相似度排序算法 模糊减运算标准算法 |
Dynamic Construction Planning for Engineering Projects Based on Improved FCPM |
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| LIU Da-jiang.Dynamic Construction Planning for Engineering Projects Based on Improved FCPM[J].Journal of Tangshan College,2022,35(6):8-16,40. |
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| Authors: | LIU Da-jiang |
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| Institution: | School of Civil Engineering, Tangshan University, Tangshan 063000, China |
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| Abstract: | Aiming at the project uncertainty in the engineering practice, the equivalent parameter of trapezoidal fuzzy number is used to express the activity duration in the project,and dynamic construction planning analysis is carried out based on the improved fuzzy critical path method(FCPM). By integrating the norm similarity and direction similarity of a vector,the vector integration similarity algorithm is proposed to solve the ranking problem of trapezoidal fuzzy numbers in critical path recognition. Furthermore,the modified fuzzy subtraction standard algorithm successfully eliminates the infeasible solution in the fuzzy time parameter calculation, and realizes the dynamic change trajectory of the critical path of the project network under the fuzzy environment. The empirical analysis verifies the rationality and effectiveness of the improved model for solving dynamic planning problems. |
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| Keywords: | critical path method dynamic construction planning trapezoid fuzzy number vector integration similarity sorting algorithm standard algorithm for fuzzy subtraction |
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