本文選題：網(wǎng)絡(luò)化制造　切入點：網(wǎng)絡(luò)化模型　出處：《天津大學(xué)》2011年博士論文

【摘要】：網(wǎng)絡(luò)化制造(Networked Manufacturing,NM)技術(shù)是將網(wǎng)絡(luò)技術(shù)與制造技術(shù)、特別是先進(jìn)制造技術(shù)相結(jié)合的所有相關(guān)技術(shù)和理論的總稱,是經(jīng)濟(jì)全球化和信息革命時代的必然產(chǎn)物。通過網(wǎng)絡(luò)化制造平臺,可以提供一個支持企業(yè)信息共享和工作協(xié)作的大環(huán)境,以支持企業(yè)開展網(wǎng)絡(luò)化制造的應(yīng)用。 本論文在分析國內(nèi)外相關(guān)研究成果的基礎(chǔ)上,重點研究了面向服務(wù)的網(wǎng)絡(luò)化制造平臺中一些關(guān)鍵技術(shù)問題,研究內(nèi)容和成果主要體現(xiàn)在以下幾方面: 1.研究并構(gòu)建了適合網(wǎng)絡(luò)化制造、基于產(chǎn)品數(shù)據(jù)交換標(biāo)準(zhǔn)(the STandard for the Exchange of Product model data,STEP)的產(chǎn)品模型體系。根據(jù)三維產(chǎn)品網(wǎng)絡(luò)模型的特點,本文結(jié)合STEP標(biāo)準(zhǔn)構(gòu)建了一個面向網(wǎng)絡(luò)化制造的產(chǎn)品模型體系,從產(chǎn)品在生命周期各個階段實際需求的角度分析了該體系的各種子模型,研究了基于STEP標(biāo)準(zhǔn)的網(wǎng)絡(luò)化模型構(gòu)建方法。 2.研究了三維可視化模型的網(wǎng)絡(luò)傳輸方法�？紤]到網(wǎng)絡(luò)化協(xié)同設(shè)計實時共享的要求,提出了基于流式傳輸(Stream Transmission)的增量傳輸(Incremental Transmission)方法。在運用流媒體技術(shù)的基礎(chǔ)上,對比新舊模型文件,只傳輸修改過的文件塊。實例證明,該方法能夠大大減少數(shù)據(jù)冗余,并提高傳輸效率。 3.研究并提出了基于最大團(tuán)(Maximal Cliques, MC)的三維模型特征檢索與匹配方法。為了能對三維產(chǎn)品模型進(jìn)行快速準(zhǔn)確的檢索,該方法綜合運用圖論算法和組合優(yōu)化技術(shù),將較為復(fù)雜的屬性鄰接圖簡化為合并圖,運用模擬退火算法求出不同機(jī)械零件的相似度。該方法不但大大提高了計算的效率,也具備了更好的工程實用性。 4.研究了在分布式協(xié)同制造環(huán)境下基于產(chǎn)品生命周期的智能決策模型構(gòu)建方法。通過對專家經(jīng)驗或歷史案例的分析,提取產(chǎn)品生命周期中起決定性作用的一些因素。在此基礎(chǔ)之上建立起層次結(jié)構(gòu)模型,通過計算得到不同候選伙伴的各項能力及綜合能力權(quán)重表。這樣企業(yè)就可以根據(jù)自身需要,借助一個或多個候選伙伴的優(yōu)勢進(jìn)行高效率的分布式協(xié)同制造。 在以上研究成果的基礎(chǔ)上,本文以昆山數(shù)控科技園數(shù)控機(jī)床及功能部件配套交易及會展網(wǎng)絡(luò)交易平臺項目為開發(fā)背景,以面向服務(wù)的架構(gòu)技術(shù)為支撐,實現(xiàn)了原型系統(tǒng)的設(shè)計與開發(fā)。
[Abstract]:Networked Manufacturing (NM) technology is a general term for all related technologies and theories that combine network technology with manufacturing technology, especially advanced manufacturing technology, and is an inevitable product of the era of economic globalization and information revolution. It can provide a large environment to support enterprise information sharing and work cooperation to support the application of networked manufacturing. Based on the analysis of domestic and foreign related research results, this paper focuses on some key technical issues in the service-oriented networked manufacturing platform. The research contents and results are mainly reflected in the following aspects:. 1. A product model system based on the STandard for the Exchange of Product model data Model (STEP), which is suitable for networked manufacturing, is studied and constructed, according to the characteristics of 3D product network model. In this paper, a product model system for networked manufacturing is constructed based on STEP standard, and various sub-models of the system are analyzed from the point of view of the actual requirements of the product in each stage of the life cycle. The method of constructing network model based on STEP standard is studied. 2. The network transmission method of 3D visualization model is studied. Considering the requirement of real-time sharing in networked collaborative design, an incremental transmission method based on streaming stream is proposed. Compared with the new and old model files, only the modified file blocks are transmitted. The example shows that this method can greatly reduce the data redundancy and improve the transmission efficiency. 3. A 3D model feature retrieval and matching method based on maximum maximum client (MCV) is proposed. In order to retrieve 3D product model quickly and accurately, the method combines graph theory algorithm and combinatorial optimization technique. The complex attribute adjacency graph is simplified to merge graph and simulated annealing algorithm is used to calculate the similarity of different mechanical parts. This method not only greatly improves the efficiency of calculation but also has better engineering practicability. 4. The method of constructing intelligent decision-making model based on product life cycle in distributed collaborative manufacturing environment is studied. Extract some decisive factors in the product life cycle. On the basis of this, build a hierarchical structure model, and calculate the capacity and comprehensive capacity weight table of different candidate partners, so that the enterprise can according to their own needs, Efficient distributed collaborative manufacturing with the advantage of one or more candidate partners. On the basis of the above research results, this paper takes the CNC machine tools and functional parts of Kunshan Science and Technology Park as the development background, and supports the service-oriented architecture technology. The design and development of the prototype system are realized.
【學(xué)位授予單位】：天津大學(xué)
【學(xué)位級別】：博士
【學(xué)位授予年份】：2011
【分類號】：TH166

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