外文翻譯---面向對象的液壓系統分析研究

1、<p>　　英文原版資料一：摘至〈〈Fluid Power Transmission And Control〉〉（流體傳動與控制）</p><p><b>　　2004年第5期</b></p><p>　　The facing target hydraulic system analyses and researches</p><p&g

2、t;　　first, facing target analysis brief introduction in the development item of the large-scale software, no matter real-time control system , database system , artificial intelligence system , reach the automatic code t

3、o produce specifically , or expand to the CIMSs of a factory, a common demand exists , set up systematic information model at network analysis stage. In numerous systematic analytical methods, the target -oriented analys

4、is (OOA ) the method approaches the human mode of thinking even </p><p>　　Hold to the person facing target's view and think , the structure of the computer program should keep the same with necessary pro

5、blem solved , but not keep unanimity with a certain analytical method. Experience indicates , as to any software system, among them the most steady composition is the compositions of talking about the land (PROBLEM DOMAI

6、N ) of the corresponding problem. It goes wrong to be because question talk about some compositions of land too usually systematically. So, carry on ab</p><p>　　Then what is the target on earth? Say popularl

7、y , the target means the objective entity in the world , it can " know some things " (store the data ), encapsulate serve " do by some work ",and "it is with targets other in coordination with &q

8、uot;(pass by news of exchanging), thus finish (module ) all functions of the system. Why interested in the target? Answer can reply of usinging simple. Though from that computer produce the beginning, we reply code of us

9、ing already, face target technology allow , </p><p>　　Face target analytical method based on target , attribute , kind belong to and member , whole and some the basic conception. The large Great Britain'

10、s encyclopaedia is pointed out: "The mankind is generally using three structure rules during the process of knowing and understanding the real world: Distinguish target and his attribute . For example, distinguish t

11、he size of a tree and tree or space position relation. Distinguish whole target and his component . For example, distinguish a tree and </p><p>　　OOA is based on daily rule of the above three. OOA model desc

12、ribed that shows some talk about the target in the land , and various structural relations and communication relations particularly . OOA model has two uses. First of all, each software set up among particular real world

13、, OOA model use formalization " view " of real world this. It is set up to various targets , says separately the institutional framework with main software system and real world impose on various rules of the s

14、oftware s</p><p>　　英文原版資料二：摘至〈〈Fluid Power Transmission And Control〉〉（流體傳動與控制）</p><p><b>　　2004年第6期</b></p><p>　　the traditional hydraulic pressure and control</p>

15、<p>　　the hydraulic automation equipment and make more and more complicated, besides general controlling electrically , and also increase sports to control, users have also put forward more requirements , there sh

16、ould be flexible and changeable control procedure , should network the networks and databases to factory, and also reduce the fabrication cost , shorten development time , even will add the function live after the appara

17、tus sells out, these are not merely the challenge that you meet, and the </p><p>　　the automatic technology changes with each passing day, the automated system is more and more complicated, so one that bring

18、 is more and more to automatic demands, for instance servo cylinder sports are controlled, because ladder-shaped picture , flow diagrams and order predicative speeches face the hardware artificial, so receive very great

19、restriction while finishing these new functions, and increase by a lot of expenses. In order to remedy these defects, traditional PLC transfers some functio</p><p>　　英文原版資料三：摘至〈〈DEVELOPMENT ＆ INNOVATION OF M

20、ACHINERY ＆ELECTRICAL PRODUCTS〉〉（機電產品開發(fā)與創(chuàng)新） 2005年第一期</p><p>　　The large-scale component computer controls the hydraulic pressure to promote in step ...</p><p>　　The hydraulic pressure of large-s

21、cale component promotes the construction mounting technique that technology is a novel one in step . It different from traditional promotion method, adopt flexible steel cut with scissors line or rigidity post bearing ,

22、riser cluster, computer is controlled, the hydraulic pressure promotes the new principle in step , combine modernized construction method, ton of components until ground assembled, whole bring up to and is booked to high

23、ly install and take one's p</p><p>　　In our country, this technology begins from the end of the eighties, apply Shanghai stone entrance to a cave second power plant to successively and Waigaoqiao Bonded

24、Zone power plant the chimney of the tube was inverted and constructed, Oriental Pearl Broadcasting and TV Tower steel aerial mast of Shanghai is promoted wholly, the steel arch over a gate of room of main website of Beij

25、ing West Railway Station is promoted wholly, Beijing Capital Airport four seat hangar network sets of roofing prom</p><p>　　is promoted in the hydraulic pressure of large-scale component in systematic contro

26、l in step , the control algorithm of the computer control system and control strategy are the key to keeping the precision that is promoted in step . Adopt general PID to control algorithms, the static error is great, an

27、d the error is changed big, can't apply to project reality . This text combine project reality, recommend one improved PID control algorithm- pairs of amplitude limiting PID control algorithms, it </p><p&g

28、t;　　前面是我的英文原版資料，因為畢業(yè)設計也要檢查我們的英文水平，即英文的聽說和寫，由于在畢業(yè)設計上只有寫能夠體現出來。這里我就我的一些英文原版資料作為我的英語翻譯成中文和一些在大性英文雜志上的文章作為翻譯資料。</p><p>　　英文原版資料一（英譯漢）：</p><p>　　面向對象的液壓系統分析研究</p><p>　　一、面向對象的分析簡介 在大型軟件開

29、發(fā)項目中，無論是實時控制系統、數據庫系統、人工智能系統，還是具體到自動代碼生成，或擴展到一個工廠的計算機集成制造系統，都存在著一個共同的需求，就是在系統分析階段建立系統的信息模型。在眾多的系統分析方法中，面向對象的分析（OOA）方法更接近于人類的思維方式，正在被越來越多的系統分析人員使用。  持面向對象觀點的人認為，計算機程序的結構應該與所需解決的問題一致，而不是與某種分析方法保持一致。經驗表明，對任何軟件系統而言，

30、其中最穩(wěn)定的成份是相應問題論域（PROBLEM DOMAIN）的成份。而系統出問題通常也是由于問題論域的某些成份。因此，對問題論域進行充分分析及準確理解是保證系統穩(wěn)定的重要基礎。   那么對象到底是什么呢？通俗地講，對象指的是客觀世界中的實體，它能“知道一些事情”（即存儲數據），“做一些工作”（即封裝服務），并“與其它對象協同“（通過交換消息），從而完成（模塊化）系統的所有功能。為什么對對象感興趣呢？答案是簡單的棗即可

31、復用性。盡管從計算機產生之初，我們就已經在復用代碼，但面向對象技術允許復用的不僅僅是代碼，還有其它許多的</p><p>　　英文原版資料二（英譯漢）：</p><p><b>　　傳統液壓控制</b></p><p>　　液壓自動化設備變得越來越復雜，除了一般的電氣控制，又要增加運動控制，用 戶又提出了更多的要求，要有靈活多變的控制流程，要聯

32、網到工廠的網絡和數據庫，又要降低造價，縮短研制時間，甚至在設備賣出去后還要去現場添加功能，這些不僅僅是您遇到的挑戰(zhàn)，也是液壓技術的發(fā)展而面臨的挑戰(zhàn)。</p><p>　　由于控制系統都要求并行工作，因此采用程序掃描方式運行， 自動化技術日新月異，自動化系統越來越復雜，因此帶來的對自動化的需求也越來越多，如伺服油缸運動控制等， 由于梯形圖、流程圖和指令表語言都是面向硬件仿真的，因此在完成這些新功能時就受到了很大的限

33、制，并且增加許多費用。為了彌補這些缺陷，傳統的PLC將某些功能轉移到別的單獨的模塊或設備中，然后用另一套語言來編程。這又造成了大量的軟件接口和數據交換。例如伺服運動控制都需單獨編程，增加了編程的復雜程度、費用和時間。 為了滿足自動化的新需求，開發(fā)并發(fā)展面向運動過程控制的可編程控制器，為自動化技術尋求新的出路，提供新的選擇。</p><p>　　英文原版資料三（英譯漢）：</p><p>　

34、　大型構件計算機控制液壓同步提升...</p><p>　　大型構件液壓同步提升技術是一項新穎的的建筑施工安裝技術。它與傳統的提升方法 不同，采用柔性鋼鉸線或剛性立柱承重、提升器集群、計算機控制、液壓同步提升新原理， 結合現代化施工方法，將成千上萬噸的構件在地面拼裝后，整體地提升到預定高度安裝就位 。在提升過程中，不但可以控制構件的運動姿態(tài)和應力分布，還可以讓結構件在空中長 期滯留和進行微動調節(jié)，實現倒裝施工和空

35、中拼接，完成人力和現有設備難以完成的施工任 務，使大型構件的起重安裝過程既簡便快捷，又安全可靠?！　≡谖覈?，這項技術從八十年代末開始，先后應用于上海石洞口第二電廠和外高橋電廠六座24 0m鋼內筒煙囪倒裝施工、上海東方明珠廣播電視塔鋼天線桅桿整體提升、北京西客站主站 房鋼門樓整體提升、北京首都機場四機位機庫網架屋面提升以及上海大劇院鋼屋架整體提升 等一系列重大建設工程中，獲得了巨大成功，取得了顯著的經濟效益和社會效益。工程實踐 證明，它