【摘要】：由于大型液壓機(jī)零部件多、尺度大,新產(chǎn)品研發(fā)、銷(xiāo)售展示和教學(xué)實(shí)驗(yàn)中,采用虛擬三維模型不能直觀呈現(xiàn),試制樣機(jī)成本較大,周期較長(zhǎng),本研究將3D打印技術(shù)應(yīng)用于大型液壓機(jī)教學(xué)展示模型設(shè)計(jì)制造,縮短了產(chǎn)品研發(fā)周期,降低了制造成本。然而,基于用戶(hù)體驗(yàn)、生產(chǎn)實(shí)際以及耐用性等方面的考慮,大型液壓機(jī)的3D打印模型需要進(jìn)行一系列的結(jié)構(gòu)優(yōu)化設(shè)計(jì),從而滿足許多特殊的需求。本文以三梁四柱大型液壓機(jī)為例,從3D打印模型的機(jī)械強(qiáng)度、剛度、穩(wěn)定性、材料節(jié)約性、整體美觀性、實(shí)用性等要求出發(fā),對(duì)大型液壓機(jī)3D打印模型進(jìn)行結(jié)構(gòu)優(yōu)化設(shè)計(jì)研究,分別提出了大型液壓機(jī)3D打印模型的拓?fù)鋬?yōu)化方案和蒙皮框架結(jié)構(gòu)設(shè)計(jì)方案。為了在拓?fù)鋬?yōu)化時(shí)保護(hù)模型外形細(xì)節(jié),對(duì)部件模型進(jìn)行了特殊的抽殼處理,并利用ANSYS Workbench軟件的Shape Optimization模塊和Static Structural模塊分別對(duì)受載荷及邊界復(fù)雜的大型液壓機(jī)部件模型內(nèi)部實(shí)體實(shí)施了拓?fù)鋬?yōu)化分析,以及優(yōu)化前后的應(yīng)力、應(yīng)變、總變形位移、Y向變形位移的分析對(duì)比,進(jìn)一步驗(yàn)證其拓?fù)鋬?yōu)化結(jié)果是否滿足強(qiáng)度和剛度要求;采用板殼理論以及材料力學(xué)等理論,結(jié)合大型液壓機(jī)輔助部件模型的不同受力情況,設(shè)計(jì)出符合要求的蒙皮框架結(jié)構(gòu),并對(duì)蒙皮框架結(jié)構(gòu)的基本尺寸進(jìn)行計(jì)算校核,拓?fù)鋬?yōu)化和蒙皮框架結(jié)構(gòu)設(shè)計(jì)之后的各部件模型被進(jìn)一步拆分打印實(shí)現(xiàn)。各部件模型優(yōu)化和設(shè)計(jì)前后的質(zhì)量變化被呈現(xiàn)出來(lái),并通過(guò)計(jì)算和分析優(yōu)化和設(shè)計(jì)前后各部件模型的質(zhì)量比率和實(shí)際耗材質(zhì)量比率,驗(yàn)證了本研究中的大型液壓機(jī)3D打印模型的優(yōu)化設(shè)計(jì)方案的可行性和必要性。
[Abstract]:Because the large hydraulic press has many parts and large scale, new product research and development, sales display and teaching experiment, the virtual 3D model can not be visualized, the cost of the prototype is high and the period is longer. In this study, 3D printing technology is applied to the design and manufacture of large hydraulic press teaching demonstration model, which shortens the product development cycle and reduces the manufacturing cost. However, based on the considerations of user experience, production practice and durability, 3D printing model of large hydraulic press needs a series of structural optimization design to meet many special needs. Taking a large hydraulic press with three beams and four columns as an example, from the requirements of mechanical strength, stiffness, stability, material saving, overall aesthetics and practicability of 3D printing model, the structural optimization design of 3D printing model of large hydraulic press is studied in this paper. The topology optimization scheme of 3D printing model of large hydraulic press and the design scheme of skin frame structure are put forward respectively. In order to protect the shape details of the model during topology optimization, a special shell extraction process is carried out for the component model. Using the Shape Optimization module and Static Structural module of ANSYS Workbench software, the topology optimization analysis of the internal entity of the large hydraulic press component model with complex load and boundary is carried out respectively, and the stress and strain before and after optimization are also analyzed. The analysis and comparison of the total deformation displacement and Y direction deformation displacement further verify whether the topological optimization results meet the requirements of strength and stiffness, and adopt the theory of plate and shell and material mechanics, etc. According to the different force condition of the auxiliary parts model of large hydraulic press, the skin frame structure which meets the requirements is designed, and the basic dimensions of the skin frame structure are calculated and checked. After topology optimization and skin frame structure design, each component model is further split and printed. The quality changes before and after the optimization and design of each component model are presented, and the mass ratio of each component model and the actual material quality ratio before and after optimization and design are calculated and analyzed. The feasibility and necessity of the optimal design of 3D printing model of large hydraulic press in this study are verified.
【學(xué)位授予單位】：合肥工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類(lèi)號(hào)】：TG315.4

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 陳巖;王士瑋;楊周旺;劉利剛;;FDM三維打印的支撐結(jié)構(gòu)的設(shè)計(jì)算法[J];中國(guó)科學(xué):信息科學(xué);2015年02期

2 徐文鵬;王偉明;李航;楊周旺;劉秀平;劉利剛;;面向3D打印體積極小的拓?fù)鋬?yōu)化技術(shù)[J];計(jì)算機(jī)研究與發(fā)展;2015年01期

3 朱小明;;三種用于實(shí)驗(yàn)教學(xué)的三維打印工藝對(duì)比[J];機(jī)械工程師;2014年07期

4 張曙;;三維打印的現(xiàn)狀與未來(lái)[J];中國(guó)電子科學(xué)研究院學(xué)報(bào);2013年06期

5 余冬梅;方奧;張建斌;;3D打印:技術(shù)和應(yīng)用[J];金屬世界;2013年06期

6 盧秉恒;李滌塵;;增材制造(3D打印)技術(shù)發(fā)展[J];機(jī)械制造與自動(dòng)化;2013年04期

7 李枝東;劉辛軍;;導(dǎo)重法求解單工況的拓?fù)鋬?yōu)化問(wèn)題[J];機(jī)械工程學(xué)報(bào);2011年15期

8 謝濤;劉靜;劉軍考;;結(jié)構(gòu)拓?fù)鋬?yōu)化綜述[J];機(jī)械工程師;2006年08期

9 崔明濤,陳建軍,姜培剛;隨機(jī)參數(shù)連續(xù)體結(jié)構(gòu)的動(dòng)力學(xué)拓?fù)鋬?yōu)化[J];應(yīng)用力學(xué)學(xué)報(bào);2005年02期

10 左孔天,陳立平,鐘毅芳,王書(shū)亭,張?jiān)魄?基于人工材料密度的新型拓?fù)鋬?yōu)化理論和算法研究[J];機(jī)械工程學(xué)報(bào);2004年12期

，

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