多种资源约束的多模式折现流离散时间-费用权衡问题

发布时间：2018-09-18 22:03

【摘要】：针对带折现流的时间-费用权衡问题研究未充分考虑资源约束的现状,本文以净现值最大化为优化目标,从整个项目实施过程的视角分析现金流动情况,并将业主的支付、合同双方约定的奖励惩罚以及项目的间接费用考虑到目标函数中,综合考虑可更新和不可更新资源约束,形成多种资源约束的多模式折现流离散时间-费用权衡问题(MRCDTCTPDF)及其数学模型,设计了求解该问题的改进遗传算法,并通过数值实验验证了模型的有效性。结果表明在以净现值最大为追求目标时,业主的奖惩机制对承包商的影响作用较小,且在满足工期限制的前提下为非里程碑活动选择较长工期以推迟现金流出的做法更有利于承包商获取较大收益。
[Abstract]:Aiming at the current situation of time-cost tradeoff problem with discounted flow, this paper takes the maximization of net present value as the optimization goal, analyzes the cash flow from the perspective of the whole project implementation process, and analyzes the payment of the owner. The incentive penalties agreed upon by the parties to the contract, as well as the overhead costs of the project, take into account the objective function, and combine renewable and non-renewable resource constraints, The multi-mode discounted flow discrete-time cost tradeoff problem (MRCDTCTPDF) with multiple resource constraints and its mathematical model are proposed. An improved genetic algorithm for solving the problem is designed and the validity of the model is verified by numerical experiments. The results show that when the maximum net present value is taken as the goal, the employer's reward and punishment mechanism has little effect on the contractor. Moreover, it is more advantageous for contractor to obtain larger profit by choosing a longer time limit for non-milestone activities to delay cash outflow under the premise of meeting the limit of time limit.
【作者单位】：西北工业大学管理学院;
【基金】：国家自然科学基金资助项目(70702026) 教育部人文社会科学基金资助项目(07JC630015) 西北工业大学翱翔之星及人文社科与管理振兴基金资助项目(RW200724)
【分类号】：C935

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