基于遺傳算法的醫(yī)療顯示器支架虛擬裝配技術(shù)研究
本文選題:虛擬裝配 + 裝配序列規(guī)劃; 參考:《合肥工業(yè)大學》2017年碩士論文
【摘要】:虛擬裝配技術(shù)是虛擬制造的重要組成部分,虛擬裝配主要研究內(nèi)容有:裝配信息模型的建立、裝配工藝的規(guī)劃以及干涉檢測等方面。裝配序列規(guī)劃是裝配工藝規(guī)劃的核心內(nèi)容之一,在很大程度上影響了產(chǎn)品設(shè)計制造的效率和質(zhì)量,本文對利用遺傳算法的裝配序列規(guī)劃進行了深入的研究。在醫(yī)療顯示器支架的研發(fā)過程中應用虛擬裝配技術(shù),能夠在產(chǎn)品設(shè)計階段發(fā)現(xiàn)裝配中的問題,并對產(chǎn)品模型進行改進,從而提高了產(chǎn)品研發(fā)的效率、降低了生產(chǎn)成本、提高了企業(yè)的競爭力。本文主要做了如下的研究工作:(1)描述了虛擬裝配技術(shù)在國內(nèi)外的研究現(xiàn)狀,并對裝配序列規(guī)劃的發(fā)展做了總結(jié)。對虛擬裝配技術(shù)的概念、分類以及關(guān)鍵技術(shù)進行研究,簡單論述了裝配路徑規(guī)劃和裝配序列規(guī)劃的方法。(2)對醫(yī)療顯示器支架進行設(shè)計并建立三維CAD模型,對其模型進行層次劃分,以便進行裝配序列規(guī)劃,并詳細說明其各組成部分的結(jié)構(gòu)。(3)對干涉矩陣的生成進行詳細的說明,并簡單介紹了遺傳算法。在干涉矩陣的基礎(chǔ)上,采用遺傳算法對裝配序列進行優(yōu)化,以裝配工具改變的次數(shù)和裝配方向改變的次數(shù)為依據(jù),建立相應的適應度函數(shù),并選擇適當?shù)倪z傳算子,對產(chǎn)品進行裝配序列規(guī)劃。(4)以醫(yī)療顯示器支架為研究對象,采用上述方法對其裝配序列進行優(yōu)化,并得到可行的最優(yōu)裝配序列。(5)用達索公司的DELMIA軟件構(gòu)建虛擬裝配環(huán)境,并基于最優(yōu)裝配序列,采用拆卸法對醫(yī)療顯示器支架進行裝配仿真,對其裝配路徑進行規(guī)劃,并進行碰撞干涉檢測以發(fā)現(xiàn)裝配中存在的問題。最后,對醫(yī)療顯示器支架的物理樣機進行裝配實驗,以驗證虛擬裝配的合理性和可行性。
[Abstract]:Virtual assembly technology is an important part of virtual manufacturing. The main research contents of virtual assembly include the establishment of assembly information model, assembly process planning and interference detection. Assembly sequence planning is one of the core contents of assembly process planning, which to a great extent affects the efficiency and quality of product design and manufacture. In this paper, the assembly sequence planning using genetic algorithm is deeply studied. The application of virtual assembly technology in the research and development of medical display bracket can find the problems in the product design stage and improve the product model, thus improving the efficiency of product development and reducing the production cost. Improved the competitiveness of the enterprise. In this paper, the following research work is done: 1) the research status of virtual assembly technology at home and abroad is described, and the development of assembly sequence planning is summarized. The concept, classification and key technologies of virtual assembly technology are studied. The method of assembly path planning and assembly sequence planning is briefly discussed. The model is divided into layers for assembly sequence planning, and the structure of each component is explained in detail. The generation of interference matrix is described in detail, and genetic algorithm is briefly introduced. On the basis of interference matrix, genetic algorithm is used to optimize the assembly sequence. According to the times of assembly tool change and assembly direction change, the fitness function is established, and the appropriate genetic operator is selected. The assembly sequence planning of the product. (4) taking the medical display bracket as the research object, the assembly sequence is optimized by the above method, and the feasible optimal assembly sequence is obtained. Finally, the virtual assembly environment is constructed with the DELMIA software of Dassault Company. Based on the optimal assembly sequence, the disassembly method is used to simulate the assembly of the medical display bracket, the assembly path is planned, and the collision interference detection is carried out to find the problems in the assembly. Finally, the physical prototype of medical display bracket was assembled to verify the rationality and feasibility of virtual assembly.
【學位授予單位】:合肥工業(yè)大學
【學位級別】:碩士
【學位授予年份】:2017
【分類號】:TH77;TG95
【參考文獻】
相關(guān)期刊論文 前10條
1 張浩;孫承鑫;馬萬元;陸禹豪;孫欣;馮硯博;;顯示器升降調(diào)整裝置設(shè)計[J];中外企業(yè)家;2016年09期
2 陳建;張勝良;李鑫;陳琨;;拆卸序列規(guī)劃中子裝配體的識別與生成[J];工程設(shè)計學報;2016年01期
3 于嘉鵬;王成恩;張聞雷;;復雜產(chǎn)品裝配關(guān)系矩陣自動生成方法[J];計算機集成制造系統(tǒng);2010年02期
4 劉檢華;寧汝新;萬畢樂;熊珍奇;;面向虛擬裝配的復雜產(chǎn)品裝配路徑規(guī)劃技術(shù)研究[J];系統(tǒng)仿真學報;2007年09期
5 周開俊;李東波;黃希;;基于遺傳算法的裝配序列規(guī)劃研究[J];機械設(shè)計;2006年02期
6 董天陽,童若鋒,張玲,董金祥;運用有向聯(lián)接件知識求解裝配序列規(guī)劃[J];計算機輔助設(shè)計與圖形學學報;2004年01期
7 樓健人,張樹有,譚建榮,金哲凡;虛擬現(xiàn)實環(huán)境下產(chǎn)品裝配特征信息的提取[J];機械設(shè)計;2002年02期
8 楊錕,劉繼紅;面向虛擬裝配的裝配建模技術(shù)[J];機械科學與技術(shù);2001年02期
9 劉振宇,譚建榮,張樹有;面向虛擬裝配的產(chǎn)品層次信息表達研究[J];計算機輔助設(shè)計與圖形學學報;2001年03期
10 廖小云,陳湘鳳;基于遺傳算法的自動裝配順序規(guī)劃[J];重慶大學學報(自然科學版);2000年05期
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