本文選題：單元構建 + 多周期�。� 參考：《浙江工業(yè)大學》2012年碩士論文

【摘要】：單元制造系統(tǒng)因為能兼顧大批量制造的經(jīng)濟性和中小批量的靈活性,而受到學術界和企業(yè)的廣泛關注,單元構建作為單元制造系統(tǒng)設計的首要問題,也成為關注的重點。本文通過對單元構建技術和學習-遺忘曲線相關理論的研究,考慮人的學習-遺忘效應,在多個周期下建立單元構建的數(shù)學模型。 本文的研究內容主要包括： 首先,將學習-遺忘曲線與單元構建問題相結合,建立在多個周期下的單元構建數(shù)學模型,以單元間物料處理時間、機床載荷偏差及機床操作人員加工準備時間為目標函數(shù),引入數(shù)值算例,驗證模型的有效性。 其次,對于數(shù)值算例,利用遺傳算法的相關設計流程,對模型進行求解,并得到相應的最優(yōu)單元劃分方案和人員分配方案。在遺傳算法的設計方面,選用“輪盤賭”和“精英保留”策略對個體進行選擇,對于人員信息位的變異部分,采取“關聯(lián)變異”和懲罰函數(shù)相結合的方法,保證種群的進化同時排除非可行解。 再次,結合工程實例,根據(jù)公司的歷史數(shù)據(jù),利用線性回歸法建立各項操作的學習率表,通過市場調查和歷史數(shù)據(jù)建立多個周期零件的需求表,結合基于學習-遺忘曲線的多周期單元構建數(shù)學模型,運用遺傳算法進行求解,得到最優(yōu)解下的單元劃分方案。
[Abstract]:Cell manufacturing system (CMS) has been widely concerned by academia and enterprises because it can take into account the economy of mass manufacturing and flexibility of medium and small batch manufacturing. Cell construction as the primary issue of cell manufacturing system design has also become the focus of attention. In this paper, the mathematical model of unit construction is established with the consideration of human learning-forgetfulness effect through the study of unit construction technology and the theory of learning-forgetting curve. The main contents of this paper are as follows: First of all, the learning-forgetting curve is combined with the problem of unit construction, and the mathematical model of unit construction is established under multiple cycles. The objective function is the material processing time between units, the load deviation of machine tool and the processing preparation time of machine operators. A numerical example is introduced to verify the validity of the model. Secondly, for numerical examples, the model is solved by using the relevant design flow of genetic algorithm, and the corresponding optimal unit partition scheme and personnel allocation scheme are obtained. In the design of genetic algorithm, the strategy of "roulette" and "elite reservation" is used to select individuals, and the method of "association mutation" and penalty function is adopted for the mutation part of personnel information level. The evolution of the population is guaranteed and the infeasible solution is excluded at the same time. Thirdly, according to the historical data of the company, the learning rate table of each operation is established by linear regression method, and the demand table of multi-cycle parts is established by market survey and historical data. A mathematical model based on the learning-forgetting curve is constructed, and the genetic algorithm is used to solve the problem, and the unit partition scheme under the optimal solution is obtained.
【學位授予單位】：浙江工業(yè)大學
【學位級別】：碩士
【學位授予年份】：2012
【分類號】：TH165

【參考文獻】

相關期刊論文 前1條

1 趙春偉,吳智銘;一種新的制造單元設計方法[J];上海交通大學學報;1998年08期

相關碩士學位論文 前2條

1 黃志成;可重構制造系統(tǒng)性能評價的研究[D];浙江大學;2003年

2 王銀年;遺傳算法的研究與應用[D];江南大學;2009年

，

本文編號：1851823