兰州大学学报(自然科学版)
蘭州大學學報(自然科學版)
란주대학학보(자연과학판)
JOURNAL OF LANZHOU UNIVERSITY(NATURAL SCIENCES)
2015年
2期
271-284
,共14页
限额与交易机制%碳排放%次品率%模糊数%经济订货量
限額與交易機製%碳排放%次品率%模糊數%經濟訂貨量
한액여교역궤제%탄배방%차품솔%모호수%경제정화량
cap-and-trade mechanism%carbon emission%defective rate%fuzzy number%economic order quantity
针对生产过程不完美并且考虑将次品返运回生产方的二级闭合供应链系统,基于所有参数和决策变量均为梯形模糊数的情景,研究如何利用碳限额与交易机制实现对供应链总成本与碳排放的有效管理。建立供应链模糊总成本与碳排放优化模型,利用梯级平均综合表示法和Kuhn-Tucker条件法求解得到经济订货量、最优总成本和最小碳排放。结果表明:模糊参数相对于确定参数的不同方向与幅度的变化会导致差异较大的决策结果;次品率对总成本的影响与生产率和碳限额的影响方向相反,碳价对总成本的影响受给定碳限额的制约;次品率降低、生产率和碳价提高会降低碳排放,碳限额对碳排放无直接影响。
針對生產過程不完美併且攷慮將次品返運迴生產方的二級閉閤供應鏈繫統,基于所有參數和決策變量均為梯形模糊數的情景,研究如何利用碳限額與交易機製實現對供應鏈總成本與碳排放的有效管理。建立供應鏈模糊總成本與碳排放優化模型,利用梯級平均綜閤錶示法和Kuhn-Tucker條件法求解得到經濟訂貨量、最優總成本和最小碳排放。結果錶明:模糊參數相對于確定參數的不同方嚮與幅度的變化會導緻差異較大的決策結果;次品率對總成本的影響與生產率和碳限額的影響方嚮相反,碳價對總成本的影響受給定碳限額的製約;次品率降低、生產率和碳價提高會降低碳排放,碳限額對碳排放無直接影響。
침대생산과정불완미병차고필장차품반운회생산방적이급폐합공응련계통,기우소유삼수화결책변량균위제형모호수적정경,연구여하이용탄한액여교역궤제실현대공응련총성본여탄배방적유효관리。건립공응련모호총성본여탄배방우화모형,이용제급평균종합표시법화Kuhn-Tucker조건법구해득도경제정화량、최우총성본화최소탄배방。결과표명:모호삼수상대우학정삼수적불동방향여폭도적변화회도치차이교대적결책결과;차품솔대총성본적영향여생산솔화탄한액적영향방향상반,탄개대총성본적영향수급정탄한액적제약;차품솔강저、생산솔화탄개제고회강저탄배방,탄한액대탄배방무직접영향。
A secondary closed loop supply chain system with manufacturing defects was studied and the defective items were returned to the manufacturer. Based on the fuzzy theory, all the parameters and decision variables were set as trapezoidal fuzzy numbers. How to use the carbon cap-and-trade mechanism to manage the total cost and carbon emissions in the supply chain was explored and a fuzzy total cost optimization model and carbon emissions model were built. By using graded mean the integration representation method and Kuhn-Tucker method, two fuzzy models were solved, and the economic order quantity, optimal total cost and the minimum carbon emissions were given. The conclusions are that the different development direction and range of fuzzy parameters comparable to the determined parameters may give rise to a quite distinctive decision; that the influence direction of the defective rate on the total cost is opposite to the production rate and carbon emission quotas, while how the carbon price affects the total cost is constrained by the given emission quotas; and that a reduction of the defective rate and increase of the production rate and carbon price may lower carbon emissions, while the given carbon emission quotas has no direct influence upon carbon emissions.