本文關(guān)鍵詞：含能材料3D打印實驗系統(tǒng)總體設(shè)計及工藝參數(shù)影響分析　出處：《南京理工大學》2017年碩士論文　論文類型：學位論文

  更多相關(guān)文章： 3D打印技術(shù) 含能材料 熔融沉積成型 正交實驗 熵權(quán)TOPSIS模型

【摘要】：本文針對含能材料3D打印技術(shù),以溶塑型含能材料為成型材料,對含能材料3D打印實驗系統(tǒng)進行總體設(shè)計和系統(tǒng)搭建,并著重就工藝參數(shù)對成型精度的影響進行了實驗研究。論文主要工作及結(jié)論如下:(1)以熔融沉積成型技術(shù)為基礎(chǔ),結(jié)合溶塑型含能材料成型特點,對含能材料3D打印實驗系統(tǒng)進行了總體設(shè)計,并依據(jù)此完成對實驗系統(tǒng)的搭建與調(diào)試,為后續(xù)成型實驗的開展提供了實驗平臺;(2)基于傳熱學和熱力學基本理論,利用ANSYS有限元分析軟件,結(jié)合生死單元技術(shù)和ANSYS參數(shù)化設(shè)計語言,分別對噴頭及成型過程的溫度場分布進行了仿真研究。結(jié)果發(fā)現(xiàn),噴頭和成型過程整體溫度分布均在安全溫度范圍內(nèi),成型過程安全,為工藝參數(shù)影響實驗的安全進行提供了依據(jù);(3)基于正交實驗設(shè)計法,就填充速度、擠出速度、分層厚度以及填充方式對制件尺寸精度及密實度的影響規(guī)律進行了實驗研究,并利用極差分析法對實驗結(jié)果進行了單目標分析,得出了各工藝參數(shù)對單個優(yōu)化目標的影響主次關(guān)系;(4)基于熵權(quán)TOPSIS模型,對正交實驗結(jié)果進行多目標綜合優(yōu)化分析,并得出了最優(yōu)工藝參數(shù)組合方案。經(jīng)驗證實驗發(fā)現(xiàn),在綜合工藝目標上,優(yōu)選出的最優(yōu)方案較正交實驗中最優(yōu)方案提升了2.72%,驗證了熵權(quán)TOSIS模型在含能材料3D打印工藝參數(shù)優(yōu)化中應(yīng)用的可行性;(5)依據(jù)優(yōu)選出的工藝參數(shù)組合方案,以溶塑型含能材料真料為成型材料,完成對條狀、單孔及星孔藥柱的3D打印成型,驗證了含能材料3D打印的可行性。
[Abstract]:According to the energetic material 3D printing technology, the solution model of energetic materials as raw materials, the experimental system of energetic material 3D printing design and system construction, and focus on the influence of process parameters on forming accuracy was studied. The main work and conclusions are as follows: (1) in fused deposition modeling technology as the foundation, combined with the solution model of energetic materials forming characteristics of the experimental system, 3D printing materials for the design, and on the basis of the completion of the building and debugging of the experimental system, provides experimental platform for further molding experiments; (2) the basic theory of heat transfer and thermodynamics based on the use of ANSYS Co. element analysis software, combined with the life and death element technology and ANSYS parametric design language, respectively. The temperature field distribution of nozzle and molding process are simulated. The results show that the nozzle and the forming process of the temperature distribution In a safe temperature range, the forming process of safety, process parameters affect the security provided a basis; (3) orthogonal experimental design method based on filling speed, extrusion speed, layer thickness and filling mode of experiment study of the influence of the size accuracy and compactness of the law, and the experimental results are the single objective analysis by using range analysis method, obtained the influence of process parameters on the relationship between primary and secondary single objective optimization; (4) entropy TOPSIS model based on the analysis of multi objective optimization of the orthogonal experiment, and the optimum process parameters were obtained. The combination scheme of the experiments showed that in the comprehensive process target, optimal the optimized scheme is orthogonal experiment optimum scheme improved 2.72%, verified the entropy TOSIS model in the application feasibility of the optimization of the process parameters of energetic materials 3D printing; (5) according to the selected. The parameters combination scheme, the dissolving of energetic materials is really material plastic molding materials, the completion of the strip, 3D print single hole Jixing grain, verified the feasibility of energetic material 3D printing.

【學位授予單位】：南京理工大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TQ560.1;TP391.73

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