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面向增材制造的蜂窩結(jié)構(gòu)生成設(shè)計(jì)方法

發(fā)布時(shí)間:2018-05-06 21:19

  本文選題:蜂窩結(jié)構(gòu) + 增材制造; 參考:《計(jì)算機(jī)集成制造系統(tǒng)》2017年10期


【摘要】:為解決增材制造中的蜂窩結(jié)構(gòu)設(shè)計(jì)建模問題,提出一種模仿自然界蜂巢構(gòu)建過程的蜂窩結(jié)構(gòu)生成設(shè)計(jì)方法。通過對(duì)蜜蜂構(gòu)筑六邊形巢穴的內(nèi)在機(jī)理進(jìn)行研究,將蜂窩結(jié)構(gòu)生成建模分為蜂窩結(jié)構(gòu)平面主線生成和蜂窩壁板構(gòu)建兩個(gè)過程。分析了自然界蜂窩結(jié)構(gòu)"由曲轉(zhuǎn)直"的變化原理,根據(jù)其演化進(jìn)程中存在的相切關(guān)系,提出了基于切線構(gòu)造法的均勻蜂窩平面主線生成方法,并利用改進(jìn)后的修補(bǔ)算法實(shí)現(xiàn)了非均勻蜂窩平面主線的生成設(shè)計(jì);模仿蜜蜂蜂蠟堆積形成蜂窩壁的方式,提出了等壁厚蜂窩結(jié)構(gòu)構(gòu)建方法。最后結(jié)合通用軟件驗(yàn)證了仿自然式的蜂窩結(jié)構(gòu)生成設(shè)計(jì)方法的可行性。
[Abstract]:In order to solve the problem of honeycomb structure design modeling in material augmentation manufacturing, a design method of honeycomb structure generation is proposed, which mimics the process of honeycomb construction in nature. By studying the internal mechanism of honeybee building hexagonal nests, the honeycomb structure generation modeling is divided into two processes: honeycomb structure plane main line generation and honeycomb panel construction process. In this paper, the changing principle of "straight from curving" of honeycomb structure in nature is analyzed. According to the tangent relation existing in the evolution of honeycomb structure, a method of generating homogenous honeycomb plane master line based on tangent construction method is proposed. An improved patch algorithm is used to design the main line of non-uniform honeycomb plane, and a method of constructing honeycomb structure with equal thickness is proposed, which mimics the way of honeybee wax accumulation to form honeycomb wall. Finally, the feasibility of the natural-like honeycomb structure design method is verified by general software.
【作者單位】: 北京航空航天大學(xué)機(jī)械工程與自動(dòng)化學(xué)院;北京機(jī)電工程研究所;
【基金】:國(guó)家科技支撐計(jì)劃資助項(xiàng)目(2015BAF18B01)~~
【分類號(hào)】:TH122;TH16


本文編號(hào):1853916

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