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基于需求波動(dòng)的服裝供應(yīng)鏈動(dòng)態(tài)行為分析及其應(yīng)用研究

發(fā)布時(shí)間:2018-04-17 17:05

  本文選題:服裝供應(yīng)鏈 + 系統(tǒng)動(dòng)力學(xué)��; 參考:《天津大學(xué)》2014年碩士論文


【摘要】:服裝供應(yīng)鏈運(yùn)營(yíng)過(guò)程中存在很多不確定因素,如市場(chǎng)需求變化、天氣變化等。這些因素使得服裝供應(yīng)鏈系統(tǒng)更加難以管理。為了更好控制服裝供應(yīng)鏈系統(tǒng),為服裝企業(yè)節(jié)省更多的成本,獲得更高的利潤(rùn)率,本文從分析服裝供應(yīng)鏈動(dòng)態(tài)行為的基礎(chǔ)上,進(jìn)行了如下研究:1采用經(jīng)典控制理論建立了服裝供應(yīng)鏈的動(dòng)態(tài)控制模型。在模型中充分考慮了服裝供應(yīng)鏈中原材料供應(yīng)商、半成品庫(kù)存、終端庫(kù)存等各方面的因素,使得供應(yīng)鏈的動(dòng)態(tài)行為更加貼近實(shí)際經(jīng)營(yíng)中供應(yīng)鏈的行為。在此基礎(chǔ)上,采用仿真的方式研究了庫(kù)存誤差調(diào)整參數(shù)Ti、在制品庫(kù)存誤差調(diào)整參數(shù)Tw、生產(chǎn)延遲Tp、市場(chǎng)需求預(yù)測(cè)平滑指數(shù)Ta等參數(shù)的影響。通過(guò)仿真獲得了不同參數(shù)變化下的庫(kù)存行為的變化情況,最后介紹了通過(guò)勞斯定理來(lái)判斷供應(yīng)鏈模型是否穩(wěn)定的方法。通過(guò)仿真結(jié)果分析,可知調(diào)整庫(kù)存誤差調(diào)整參數(shù)Ti可以使庫(kù)存動(dòng)態(tài)行為變化最明顯,進(jìn)而有效地獲得優(yōu)化的庫(kù)存動(dòng)態(tài)性能。2在服裝供應(yīng)鏈總體動(dòng)態(tài)行為分析的基礎(chǔ)上,本文更加深入地研究了服裝供應(yīng)鏈綜合庫(kù)存系統(tǒng)在價(jià)格波動(dòng)情況下的動(dòng)態(tài)行為。供應(yīng)鏈綜合庫(kù)存系統(tǒng)將供應(yīng)鏈銷售物流中渠道庫(kù)存和終端庫(kù)存作為一個(gè)整體考慮。在本文中假設(shè)價(jià)格波動(dòng)由零售商促銷活動(dòng)的價(jià)格折扣策略產(chǎn)生。當(dāng)零售商庫(kù)存和渠道庫(kù)存達(dá)到一定水平以后,為了提高服裝的銷量、調(diào)節(jié)庫(kù)存水平,零售商就要采取價(jià)格折扣策略進(jìn)行促銷。促銷引起的需求波動(dòng)由渠道庫(kù)存和終端庫(kù)存共同決定。在本文中為了更好地研究綜合庫(kù)存系統(tǒng)的動(dòng)態(tài)行為,分別給予渠道庫(kù)存和終端庫(kù)存相應(yīng)的權(quán)重。然后,通過(guò)李雅普諾夫定理求出了系統(tǒng)穩(wěn)定域的決策參數(shù)的范圍。通過(guò)仿真的方式研究了不同價(jià)格折扣參數(shù)、終端庫(kù)存權(quán)重、決策參數(shù)對(duì)于綜合庫(kù)存系統(tǒng)各個(gè)部分的行為的影響,獲得不同特征行為的相應(yīng)的決策參數(shù)的取值范圍。3最后本文提出了綜合供應(yīng)鏈系統(tǒng)的優(yōu)化方法。該優(yōu)化方法采用人工智能方法——模糊控制,進(jìn)行建模。本文采用偏差控制的方式,通過(guò)調(diào)整供應(yīng)鏈中的庫(kù)存偏差獲得合適的庫(kù)存誤差調(diào)整參數(shù)Ti,進(jìn)而獲得最優(yōu)的供應(yīng)鏈動(dòng)態(tài)性能。然后采用比例因子的方式對(duì)調(diào)整結(jié)果進(jìn)行微調(diào),使管理人員的經(jīng)驗(yàn)?zāi)軌蚍闲碌那闆r。比例因子調(diào)節(jié)的方式使得模糊控制具有更大的靈活性和具有較強(qiáng)的適應(yīng)性。
[Abstract]:There are many uncertain factors in the process of clothing supply chain operation, such as market demand change, weather change and so on.These factors make the clothing supply chain system more difficult to manage.In order to control the apparel supply chain system better, save more cost and obtain higher profit rate for garment enterprises, this paper analyzes the dynamic behavior of clothing supply chain.In this paper, the dynamic control model of apparel supply chain is established by using the classical control theory.In the model, the factors of raw material supplier, semi-finished product inventory and terminal inventory are fully considered, which makes the dynamic behavior of supply chain more close to the behavior of supply chain in actual operation.On this basis, the effects of parameters such as inventory error adjustment parameter (Ti), work-in-process inventory error adjustment parameter (Tws), production delay (TP) and market demand prediction smoothing index (Ta) are studied by simulation.The change of inventory behavior under different parameters is obtained by simulation. Finally, the method of judging whether the supply chain model is stable or not is introduced by the law theorem.Through the analysis of simulation results, it can be concluded that adjusting inventory error adjustment parameter Ti can make inventory dynamic behavior change most obviously, and then effectively obtain optimized inventory dynamic performance .2 on the basis of overall dynamic behavior analysis of clothing supply chain.In this paper, the dynamic behavior of the clothing supply chain integrated inventory system under the condition of price fluctuation is studied more deeply.Supply chain integrated inventory system considers channel inventory and terminal inventory in supply chain sales logistics as a whole.In this paper, it is assumed that the price fluctuation is caused by the price discount strategy of the retailer's promotional activities.When the retailer's inventory and channel inventory reach a certain level, in order to improve the clothing sales and adjust the inventory level, the retailer should take the price discount strategy to promote the sales.The demand fluctuation caused by sales promotion is determined by channel inventory and terminal inventory.In this paper, in order to study the dynamic behavior of integrated inventory system better, the weights of channel inventory and terminal inventory are given respectively.Then, the range of decision parameters in the stability domain of the system is obtained by Lyapunov theorem.The effects of different price discount parameters, terminal inventory weight and decision parameters on the behavior of each part of the integrated inventory system are studied by simulation.Finally, the optimization method of the integrated supply chain system is proposed in this paper.This optimization method uses artificial intelligence method-fuzzy control, carries on the modeling.In this paper, the optimal dynamic performance of the supply chain is obtained by adjusting the inventory deviation in the supply chain by adjusting the inventory error adjustment parameter Ti.Then the adjustment results are fine-tuned by the scale factor, so that the manager's experience can adapt to the new situation.The way of scaling factor makes fuzzy control have more flexibility and adaptability.
【學(xué)位授予單位】:天津大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2014
【分類號(hào)】:F274;F407.86

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