外文資料翻譯--虛擬裝配系統(tǒng)基于proengineer應(yīng)用方面的研究

1、<p>　　芃莄螃袀蒞蕿蠆衿肅莂薄羈膇薈蒀羇芀莀蝿羇罿薆螅羆膂荿蟻羅芄蚄薇羄莆蕆袆羃肆芀螂羂膈蒅蚈肁芀羋薄肁羀蒄蒀肀肂芆袈聿芅蒂螄肈莇蒞蝕肇肇薀薆肆腿莃裊肅芁薈螁膅莄莁蚇膄肅薇薃螀膆莀葿蝿莈薅袇蝿?wù)剌荏蛲J蠆螇節(jié)蒆薅螆莄艿襖裊肄蒄螀襖膆芇蚆袃艿蒃薂袃肈芆薈袂膁薁袇袁芃莄螃袀蒞蕿蠆衿肅莂薄羈膇薈蒀羇芀莀蝿羇罿薆螅羆膂荿蟻羅芄蚄薇羄莆蕆袆羃肆芀螂羂膈蒅蚈肁芀羋薄肁羀蒄蒀肀肂芆袈聿芅蒂螄肈莇蒞蝕肇肇薀薆肆腿莃裊肅芁薈螁膅莄莁蚇膄肅

2、薇薃螀膆莀葿蝿莈薅袇蝿?wù)剌荏蛲J蠆螇節(jié)蒆薅螆莄艿襖裊肄蒄螀襖膆芇蚆袃艿蒃薂袃肈芆薈袂膁薁袇袁芃莄螃袀蒞蕿蠆衿肅莂薄羈膇薈蒀羇芀莀蝿羇罿薆螅羆膂荿蟻羅芄蚄薇羄莆蕆袆羃肆芀螂羂膈蒅蚈肁芀羋薄肁羀蒄蒀肀肂芆袈聿芅蒂螄肈莇蒞蝕肇肇薀薆肆腿莃裊肅芁薈螁膅莄莁蚇膄肅薇薃螀膆莀葿蝿莈薅袇蝿?wù)剌荏蛲J蠆螇節(jié)蒆薅螆莄艿襖裊肄蒄螀襖膆芇蚆袃艿蒃薂袃肈芆薈袂膁薁袇袁芃莄螃袀蒞蕿蠆衿肅莂薄羈膇薈蒀羇芀莀蝿羇罿薆螅羆膂荿蟻羅芄蚄薇羄莆蕆袆羃肆芀螂羂膈蒅蚈肁芀

3、羋薄肁羀蒄蒀肀肂芆袈聿芅蒂螄肈莇蒞蝕肇肇薀薆肆腿莃裊肅芁薈螁膅莄莁蚇膄肅薇薃螀膆莀葿蝿莈薅袇蝿?wù)剌荏蛲J蠆螇節(jié)蒆薅螆莄艿襖裊肄蒄螀襖膆芇蚆袃</p><p><b>　　中文3100字</b></p><p>　　附件1：外文資料翻譯譯文</p><p>　　虛擬裝配系統(tǒng)基于ProENGINEER應(yīng)用方面的研究</p><

4、p>　　【摘要】虛擬裝配技術(shù)是一種新的設(shè)計概念。它能有效地支持并行的自頂向下的設(shè)計和相關(guān)的主模型設(shè)計制造和裝配的設(shè)計，縮短產(chǎn)品開發(fā)周期。本文分析了虛擬裝配技術(shù)的基本思想，提出了汽車設(shè)計的某型焊接技術(shù)實(shí)現(xiàn)的基礎(chǔ)，虛擬裝配環(huán)境和具體的方法和實(shí)施手段。</p><p>　　關(guān)鍵詞:虛擬裝配設(shè)計、并行的主要模型</p><p><b>　　1簡介</b></p&g

5、t;<p>　　近年來，世界機(jī)械制造業(yè)市場競爭越來越激烈，為了適應(yīng)瞬息萬變的市場需求，產(chǎn)品的開發(fā)周期，質(zhì)量，成本，服務(wù)，并為每個現(xiàn)代企業(yè)必須面對的。過去20年的實(shí)踐表明，應(yīng)用信息技術(shù)手段的新產(chǎn)品的開發(fā)和改造的實(shí)施是現(xiàn)代企業(yè)生存，發(fā)展的必由之路。同時，先進(jìn)的產(chǎn)品開發(fā)方法，手段和實(shí)施辦法，事實(shí)上產(chǎn)品質(zhì)量，成本，設(shè)計周期，保證以最優(yōu)惠的條件。波音公司的案例，代表的數(shù)字產(chǎn)品陳列在777，不同于過去，新飛機(jī)的關(guān)鍵信息如何表現(xiàn)優(yōu)異，但

6、強(qiáng)調(diào)他們是如何充分利用數(shù)字化技術(shù)和產(chǎn)品研發(fā)人員開發(fā)了重新組建等。777個項目順利完成，主要是依賴于三維數(shù)字化設(shè)計與集成產(chǎn)品開發(fā)團(tuán)隊工作（集成產(chǎn)品開發(fā)團(tuán)隊）（238個隊）的有效實(shí)施和確保飛機(jī)設(shè)計，裝配，測試，以及測試計算機(jī)完成。開發(fā)周期從過去的8年減少到五年，包括工程設(shè)計的虛擬裝配過程中的發(fā)展思路，發(fā)揮了重要作用?！碧摂M裝配”（虛擬）是一個數(shù)字產(chǎn)品定義的一個重要環(huán)節(jié)，在該領(lǐng)域的虛擬與仿真技術(shù)已被廣泛用于研究。通常有兩種類型的定義：<

7、/p><p>　　（1）虛擬裝配是一個結(jié)合之間的關(guān)系模型的一部分的過程中重新定位，是一種有效的分析產(chǎn)品設(shè)計為手段的合理性。這個定義強(qiáng)調(diào)了虛擬裝配技術(shù)是一種新型的重新定位，分析過程。</p><p>　?。?）虛擬裝配設(shè)計是基于形狀特征，精度特征，真正的三維模擬產(chǎn)品的裝配過程，并允許用戶以交互方式控制產(chǎn)品的三維仿真的裝配過程，測試產(chǎn)品的裝配。</p><p>　　在本文中

8、，焊接汽車發(fā)展的特點(diǎn)，給出了如下的定義：虛擬裝配是一個完整的產(chǎn)品在計算機(jī)實(shí)體造型零件和組裝電腦，干擾分析，協(xié)調(diào)設(shè)計過程多次實(shí)現(xiàn)三維產(chǎn)品設(shè)計過程和高度統(tǒng)一的零件和裝配過程。虛擬裝配技術(shù)在機(jī)械設(shè)計中的應(yīng)用研究，是一種全新的設(shè)計理念，開發(fā)的產(chǎn)品設(shè)計提供了新的思路和實(shí)現(xiàn)，它的成功取決于控制產(chǎn)品的設(shè)計過程。同時，該產(chǎn)品的合理流動的部件和零件模型數(shù)據(jù)分享彼此的基礎(chǔ)是虛擬裝配技術(shù)。虛擬裝配包括設(shè)計過程，過程控制和裝配仿真三個部分。</p>

9、<p>　　2虛擬裝配設(shè)計的基本內(nèi)容</p><p>　　2.1設(shè)計為中心的虛擬裝配</p><p>　　設(shè)計為中心的虛擬裝配（設(shè)計為中心的虛擬裝配）是指在產(chǎn)品中使用的三維數(shù)字產(chǎn)品的開發(fā)過程，結(jié)合具體情況開發(fā)產(chǎn)品，突出應(yīng)用設(shè)計為核心思想。</p><p>　　2.1.1面向裝配的設(shè)計（裝配）</p><p>　　早期的設(shè)計和制造

10、的產(chǎn)品設(shè)計過程中，有機(jī)結(jié)合的組裝過程中，從設(shè)計角度來保證產(chǎn)品裝配。介紹了面向裝配的產(chǎn)品設(shè)計方法，使設(shè)計的產(chǎn)品具有良好的結(jié)構(gòu)，可以有效地進(jìn)行物理組件，早在產(chǎn)品開發(fā)，設(shè)計及制造部門之間更有效地合作。</p><p>　　2.1.2自上而下（自上而下）的并行產(chǎn)品設(shè)計（專業(yè)）</p><p>　　產(chǎn)品并行設(shè)計產(chǎn)品及其相關(guān)過程集成，并行設(shè)計，強(qiáng)調(diào)開發(fā)開始直到消失，產(chǎn)品從概念設(shè)計在整個生命周期所有相關(guān)

11、因素，對所有可能出現(xiàn)的錯誤和早期發(fā)現(xiàn)可能發(fā)生的沖突，從而縮短產(chǎn)品開發(fā)周期，降低產(chǎn)品成本，提高產(chǎn)品質(zhì)量。</p><p>　　2.1.3與主模型設(shè)計制造和裝配的設(shè)計</p><p>　　產(chǎn)品開發(fā)是一個多部門協(xié)作的工作流程，部門之間的合作生產(chǎn)的企業(yè)，往往受到各種條件的限制，結(jié)合，生產(chǎn)能力的個體企業(yè)和生產(chǎn)的特點(diǎn)，提高了產(chǎn)品設(shè)計模型的制造，裝配，模型，減少了零件數(shù)量和特殊類型，降低了材料的類型，使

12、用標(biāo)準(zhǔn)化，模塊化組件，這是非常必要的。主模型在不同階段的核心，可以開發(fā)，確保產(chǎn)品的完整性在不同階段的相同的數(shù)據(jù)結(jié)構(gòu)，確保產(chǎn)品開發(fā)的各個部門共同努力，實(shí)現(xiàn)計算機(jī)輔助設(shè)計/制造/工程系統(tǒng)，集成化程度高，提高了產(chǎn)品的可制造性、可裝配。</p><p>　　2.2以過程控制為中心的虛擬裝配</p><p>　　以過程控制為中心的虛擬裝配（以過程為中心的虛擬裝配）主要包括以下方面。</p>

13、;<p>　　2.2.1的產(chǎn)品設(shè)計過程控制</p><p>　　在數(shù)字產(chǎn)品定義過程，結(jié)合特色產(chǎn)品的開發(fā)，人工的虛擬裝配技術(shù)應(yīng)用于產(chǎn)品的設(shè)計過程，這個過程可以分為三個階段：設(shè)計階段，裝配設(shè)計階段和詳細(xì)設(shè)計階段。設(shè)計階段，通過三個控制產(chǎn)品設(shè)計過程控制，和虛擬裝配設(shè)計過程。</p><p>　　（1）設(shè)計階段。設(shè)計階段是產(chǎn)品開發(fā)的早期階段，在這個階段，總體布局，最初的產(chǎn)品，包括：建

14、立主模型（模型）的空間；最初的產(chǎn)品結(jié)構(gòu)，系統(tǒng)的總體布局。</p><p>　?。?）裝配設(shè)計階段。裝配設(shè)計階段的產(chǎn)品開發(fā)的主要階段，在這個階段，三維實(shí)體模型的產(chǎn)品設(shè)計已基本完成，包括：產(chǎn)品模型空間分配（裝配，組件級分類）；具體模型定義（幾何關(guān)系，三維實(shí)體模型，等），與應(yīng)力控制。</p><p>　?。?）詳細(xì)設(shè)計階段。詳細(xì)設(shè)計階段的完美階段的產(chǎn)品開發(fā)，產(chǎn)品在這個階段完成最終設(shè)計的三維實(shí)體模

15、型，包括：完成三維實(shí)體模型的最終產(chǎn)品設(shè)計，產(chǎn)品模型的組裝電腦，條全機(jī)器干涉檢查。</p><p>　　2.2.2過程控制管理</p><p>　　過程模型的描述包含產(chǎn)品的開發(fā)過程，過程的相互關(guān)系的過程和內(nèi)部之間的合作方面。通過該過程模型的有效管理，實(shí)現(xiàn)項目開發(fā)過程與結(jié)果的各種產(chǎn)品的設(shè)計加工等產(chǎn)品的相關(guān)信息的管理，以實(shí)現(xiàn)其目的的優(yōu)化產(chǎn)品開發(fā)過程。</p><p>　　

16、2.3為中心的虛擬裝配仿真</p><p>　　為中心的虛擬裝配仿真（simulate-centered虛擬裝配）是在產(chǎn)品裝配設(shè)計模型，集成仿真技術(shù)，用它來評估和優(yōu)化裝配工藝。其主要目的是評估產(chǎn)品組件。</p><p>　　2.3.1結(jié)合優(yōu)化裝配工藝</p><p>　　目的是使我們的產(chǎn)品能適應(yīng)當(dāng)?shù)貤l件，分為裝配，使裝配單元可以平行裝配。</p>&l

17、t;p><b>　　2.3.2裝配評價</b></p><p>　　它的目的是評估的相對容易的產(chǎn)品裝配，裝配成本的計算，從而決定是否修改產(chǎn)品設(shè)計。</p><p><b>　　3應(yīng)用</b></p><p><b>　　3.1應(yīng)用環(huán)境</b></p><p>　　虛擬裝配

18、技術(shù)在焊接小車的設(shè)計，需要的基礎(chǔ)上有一定的應(yīng)用環(huán)境為平臺的組成如下：合作環(huán)境，統(tǒng)一信息編碼系統(tǒng)和jixietongyong基礎(chǔ)標(biāo)準(zhǔn)。</p><p>　　（1）協(xié)同工作環(huán)境。這是一個合作的基本環(huán)境，實(shí)施支持遠(yuǎn)程設(shè)計，遠(yuǎn)程組件，遠(yuǎn)程測試的工作環(huán)境，特別是三維圖形的遠(yuǎn)程快速轉(zhuǎn)移，過程控制，人機(jī)交互環(huán)境是必不可少的。</p><p>　?。?）統(tǒng)一編碼系統(tǒng)信息。焊接車的設(shè)計是一個復(fù)雜的系統(tǒng)工程，

19、數(shù)據(jù)在腳本和腳本之間的合理流動，使有效的管理，是實(shí)現(xiàn)虛擬裝配技術(shù)的一個重要部分，該平臺必須能夠?qū)崿F(xiàn)協(xié)同設(shè)計，也是各種產(chǎn)品數(shù)據(jù)管理和交付，確保正確的時間得到正確的信息正確的方法使用傳遞給正確的人。因此，一個統(tǒng)一的編碼系統(tǒng)的信息的一個重要部分是應(yīng)用基礎(chǔ)。</p><p>　?。?）機(jī)械共同基本標(biāo)準(zhǔn)。如果目標(biāo)的虛擬裝配技術(shù)產(chǎn)業(yè)CAP/技術(shù)，有效整合和數(shù)據(jù)交換之間的工廠，必須基于標(biāo)準(zhǔn)的通用機(jī)械。</p>&

20、lt;p>　　3.2部分的設(shè)計與實(shí)現(xiàn)的焊接小車的途徑和方式</p><p>　　3.2.1硬件和軟件環(huán)境</p><p>　　硬件：康柏服務(wù)器之一；小，二點(diǎn)七克，1微機(jī)內(nèi)存8集。</p><p>　　軟件：軟件工程師2001及其支持環(huán)境。</p><p>　　3.2.2傳輸焊接小車的虛擬裝配技術(shù)應(yīng)用</p><p&g

21、t;　　我們選擇的虛擬裝配技術(shù)研究的一個工程實(shí)例，虛擬裝配技術(shù)，工程的思想，方法和具體的實(shí)現(xiàn)方法，為進(jìn)一步研究，為下一階段的應(yīng)用的汽車提供了基本的理論支持。</p><p>　?。?）設(shè)計階段?？指鶕?jù)汽車設(shè)計和基本設(shè)計參數(shù)需要建立主蝸桿齒輪和齒輪模型空間，與總體布局的初步。設(shè)計階段的模型如圖2所示。在這一階段，包括下列基本步驟：工程圖紙已下設(shè)粗糙模型；布局的一部分的模型（蝸輪，蝸桿，齒輪，等等）；初步設(shè)計的系統(tǒng)

22、組件，建立初始模型。</p><p>　　本階段結(jié)束時，必須凍結(jié)產(chǎn)品已建立主模型空間，作為基礎(chǔ)模型共享。</p><p>　?。?）裝配設(shè)計階段。這是一個特定的汽車模型建立階段。這一階段包括下列基本步驟：建立各種零件的物理模型；定義特定結(jié)構(gòu)的分解，裝配線（建立組件級，裝配建模）；裝配約束之間的具體關(guān)系（約束）；提取的共享數(shù)據(jù)庫，相應(yīng)的結(jié)構(gòu)模型；計算機(jī)裝配（計算機(jī)模擬，簡稱中央結(jié)算系統(tǒng)），以

23、及干涉檢查。</p><p>　　（3）詳細(xì)設(shè)計階段。完成這一階段的所有組件的焊接小車設(shè)計保證各部分的小干擾的自由車。</p><p><b>　　4結(jié)論</b></p><p>　　虛擬裝配的應(yīng)用研究所剛剛開始在中國，無論在船，飛機(jī)，機(jī)械等領(lǐng)域產(chǎn)品的研究和開發(fā)，或其他輕工藝產(chǎn)品的發(fā)展，人們逐漸認(rèn)識到虛擬裝配可以發(fā)揮巨大作用和發(fā)展?jié)摿Α?lt;

24、/p><p><b>　　附件2：外文原文</b></p><p>　　Virtual assembly system based on ProENGINEER Applied Research</p><p>　　【Abstract】 virtual assembly technology is a new design concept. It

25、can effectively support parallel top-down design and associated with the Master Model design for manufacturing and design for assembly, to shorten the product development cycle. This paper analyzes the basic idea of virt

26、ual assembly technology, the proposed design of the car a certain type of soldering technology in the implementation of the basis for virtual assembly environment and the specific ways and means of implementation.</p&

27、gt;<p>　　Key words :virtual assembly design o，the main model of parallel</p><p>　　1 Introduction</p><p>　　In recent years, the world's machinery manufacturing industry increasingly co

28、mpetitive market, in order to adapt to rapidly changing market demand, product development cycle, quality, cost, services, and as every modern business must face. The practice of the past 20 years shows that application

29、of information technology means new product development and implementation of the transformation of modern enterprise is survival, the only way for development. Meanwhile, advanced product development me</p><p

30、>　　(1) Virtual assembly is a binding relationship between the part model by the process of repositioning is an effective analysis of product design as a means of rationality. This definition emphasizes the virtual ass

31、embly technique is a model of re-orientation, the analysis process.</p><p>　　(2) virtual assembly design is based on the shape of features, precision features, truly three-dimensional simulation of product a

32、ssembly process, and allows users to interactively control the products of three-dimensional simulation of the real assembly process, to test the product for Assembly.</p><p>　　In this paper, the characteris

33、tics of welding car development, given the following definition: Virtual assembly is a complete product in computer solid modeling of parts and assembly for a computer, interference analysis, coordination of the design p

34、rocess several times to achieve three-dimensional product design process and high degree of unity of parts and assembly processes. Virtual Assembly Technology in applied research in mechanical design, is a new design con

35、cept, it developed the product</p><p>　　2 virtual assembly design and content of basic</p><p>　　2.1 Design-centric virtual assembly</p><p>　　Design-centric virtual assembly (Design-

36、Centered Virtual Assembly) is defined in the product used in three-dimensional digital product development process, combined with the specific circumstances of product development, highlighting application of the design

37、as the core ideology, which is reflected in the following three level, shown in Figure 1.</p><p>　　2.1.1 Design for assembly (DFA)</p><p>　　That early in the design and manufacture of the produc

38、t design process, the organic combination of the assembly process, from design point of view to ensure the product for Assembly. The introduction of assembly-oriented product design process, make the design of products w

39、ith good structure and can efficiently carry out the physical assembly, early in product development so that between the design and the manufacturing sectors to work together more effectively.</p><p>　　2.1.2

40、 Top-down (Top-down) of the Concurrent Product Design (CPD)</p><p>　　Concurrent product design is the product and its related process integration, parallel design, emphasizing the developer from the outset u

41、ntil the disappearance of products from conceptual design throughout the life cycle of all relevant factors, to all the possible errors and early detection of possible conflicts in order to shorten product development cy

42、cles, reduce product cost, improve product quality.</p><p>　　2.1.3 associated with the Master Model Design for Manufacturing and Design for Assembly</p><p>　　Product development is a multi-secto

43、ral collaborative working process, cooperation between various departments of production of enterprises are often subject to various conditions, limitations, combined with the productive capacity of individual enterprise

44、s and production characteristics, improve product design models for manufacturing, for Assembly, model to reduce the number of spare parts and special types, reducing the material type, use of standardized, modular compo

45、nents, it is very necess</p><p>　　2.2 to process control as the center of the virtual assembly</p><p>　　To process control as the center of the virtual assembly (Process-Centered Virtual Assembl

46、y) mainly contains the following two aspects.</p><p>　　2.2.1 of the product design process control</p><p>　　In the digital product definition process, the combination of characteristics of produ

47、ct development, artificially virtual assembly technology used in product design process, the process can be divided into three stages: design stage, the assembly design stage and detailed design stage. Design stage throu

48、gh the three control of the product design process control, and virtual assembly design process.</p><p>　　(1) design stage. Design stage is the early stages of product development, at this stage the overall

49、layout of the initial product, including: the establishment of the master model (Master Model) space; initial product structure, overall system layout.</p><p>　　(2) assembly design stage. Assembly design sta

50、ge of product development the main stage, at this stage, three-dimensional solid model of product design has been basically completed, including: product model space allocation (assembly area, assembly-level classificati

51、on); specific model definition (geometrical relationship established, three-dimensional entity model, etc.), and stress control.</p><p>　　(3) detailed design stage. The detailed design stage for the perfect

52、stage of product development, product at this stage to complete the final design of three-dimensional solid model, including: the completion of three-dimensional solid model of the final product design, product model of

53、the computer assembly, full-machine interference checking.</p><p>　　2.2.2 Process Control Management</p><p>　　Process model contains the description of the product development process, the proce

54、ss of mutual relations and the process of internal collaboration between the aspects. Through the process model of effective management, implementation of the project development process and the results of various produc

55、t design processing and other products related to information management, in order to achieve the purpose of optimizing the product development process.</p><p>　　2.3 as the center of the virtual assembly sim

56、ulation</p><p>　　To the center of the virtual assembly simulation (Simulate-Centered Virtual Assembly) is in the product assembly design model, the integration of simulation technology and use it to evaluate

57、 and optimize the assembly process. Its main objective is to evaluate the product for Assembly.</p><p>　　2.3.1 optimized assembly process</p><p>　　Purpose is to make our products can adapt to lo

58、cal conditions, divide into assembly units, so that assembly unit can be assembled in parallel.</p><p>　　2.3.2 Assembly Evaluation</p><p>　　It aimed to evaluate the relative ease of product asse

59、mbly, assembly cost calculation, and thus decide whether to modify product design.</p><p>　　3 Application</p><p>　　3.1 based application environment</p><p>　　Virtual assembly techno

60、logy in the welding carriage design, Xu Yao's foundation a certain application environment as a platform consists of the following: teamwork environment, Information Coding System and Jixietongyong based standards.&

61、lt;/p><p>　　(1) collaborative work environment. There is a collaboration of the basic environment, the implementation supports remote design, remote assembly, remote testing work environment, particularly three

62、-dimensional graphics based remote rapid transfer, process control, human-computer interaction based environment is essential.</p><p>　　(2) a unified coding system information. Welding car's design is a

63、complicated system, the engineering data within the IPT and the IPT rational flow between, so effective management is to achieve an important part of virtual assembly technology, the platform must be able to achieve coll

64、aborative design, but also various product data management and delivery, ensuring the right time to get the right information the right way to use pass to the right people. Therefore, a unified coding system of in</p&

65、gt;<p>　　(3) Mechanical common basic standards. If the goal of virtual assembly technology industry CAD / CAE / CAPP / CAM technology, the effective integration and data exchange between the factories, must be bas

66、ed on standard general-purpose machinery.</p><p>　　3.2 Components Design and implementation of the welding carriage ways and means</p><p>　　3.2.1 hardware and software environment</p><

67、;p>　　Hardware: COMPAQ server one; P4, 2.7G, 1M memory of the microcomputer 8 sets.</p><p>　　Software: Pro / ENGINEER 2001 and its supporting environment.</p><p>　　3.2.2 transmission welding t

68、rolley application of virtual assembly technology</p><p>　　We chose the virtual gear assembly technology research as a project example, the virtual assembly technology, engineering ideas, methods, and specif

69、ic implementation approach for further study, for the next phase of the application of the car to provide a basic theoretical support.</p><p>　　(1) design stage. IPT according to car design and basic design

70、parameters required to establish the main worm gear and gear model space, and the overall layout of the preliminary. Design phase of the model shown in Figure 2. At this stage, include the following basic steps: engineer

71、ing drawings have been set up under the rough model; layout part of the initial model (worm, worm, gear, etc.); a preliminary layout of the system components, the establishment of the initial model.</p><p>　

72、　The end of this stage, must be frozen products has been established the main model space, as the basis for modeling shared.</p><p>　　(2) assembly design stage. This is a specific car model building phase. T

73、his stage includes the following basic steps: the establishment of various parts of the physical model; definition of the specific structure of the decomposition of assembly line (the establishment of assembly-level, ass

74、embly area); modeling assembly constraints between the specific (Constraints) relationship; extracted from the shared database, the corresponding Structural model; for computer assembly (Computer Mock-Up, re</p>&

75、lt;p>　　(3) detailed design stage. The completion of this phase welding carriage design of all components to ensure that all parts of small interfering in the free car, design model shown in Figure 3.</p><p&

76、gt;　　4 Conclusion</p><p>　　Application of virtual assembly Institute has just started in China, whether in ships, aircraft, machinery and other fields of product research and development, or in other light c

77、raft product development, people have gradually realized the virtual assembly can play a huge role and development potential.</p><p>　　袂羀蒅蠆螈聿薇裊肇肈芇蚇羃肇葿袃罿肆薂螆裊肆蚄蕿?zāi)f肅莄螄肀肄蒆薇羆肅薈螂袂膂羋薅螇膁莀螁肆膀薃薃肂膀蚅衿羈腿莄螞襖膈蕆袇螀膇蕿蝕聿膆艿裊羅芅莁蚈

78、袁芄蒃襖螇芄蚆蚇膅芃蒞蕿肁節(jié)蒈螅羇芁薀薈袃芀芀螃蝿艿莂薆肈莈蒄螁羄莈薇薄袀莇芆螀袆莆葿蚃膄蒞薁袈肀莄蚃蟻羆莃莃袆袂羀蒅蠆螈聿薇裊肇肈芇蚇羃肇葿袃罿肆薂螆裊肆蚄蕿?zāi)f肅莄螄肀肄蒆薇羆肅薈螂袂膂羋薅螇膁莀螁肆膀薃薃肂膀蚅衿羈腿莄螞襖膈蕆袇螀膇蕿蝕聿膆艿裊羅芅莁蚈袁芄蒃襖螇芄蚆蚇膅芃蒞蕿肁節(jié)蒈螅羇芁薀薈袃芀芀螃蝿艿莂薆肈莈蒄螁羄莈薇薄袀莇芆螀袆莆葿蚃膄蒞薁袈肀莄蚃蟻羆莃莃袆袂羀蒅蠆螈聿薇裊肇肈芇蚇羃肇葿袃罿肆薂螆裊肆蚄蕿?zāi)f肅莄螄肀肄蒆薇羆肅薈螂

79、袂膂羋薅螇膁莀螁肆膀薃薃肂膀蚅衿羈腿莄螞襖膈蕆袇螀膇蕿蝕聿膆艿裊羅芅莁蚈袁芄蒃襖螇芄蚆蚇膅芃蒞蕿肁節(jié)蒈螅羇芁薀薈袃芀芀螃蝿艿莂薆肈莈蒄螁羄莈薇薄袀莇芆螀袆莆葿蚃膄蒞薁袈肀莄蚃蟻羆莃莃袆袂羀蒅蠆螈聿薇裊肇肈芇蚇羃肇葿袃罿肆薂螆裊肆蚄蕿?zāi)f肅莄螄肀肄蒆薇羆肅薈螂袂膂羋薅螇膁莀螁肆膀薃薃肂膀蚅衿羈腿莄螞襖膈蕆袇螀膇蕿蝕聿膆艿裊羅芅莁蚈袁芄蒃襖螇芄蚆蚇膅芃蒞蕿肁節(jié)蒈螅羇芁薀薈袃芀芀螃蝿艿莂薆肈莈蒄螁羄莈薇薄袀莇芆螀袆莆葿蚃</p>