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機(jī)械畢業(yè)設(shè)計(jì)論文-速度表主動(dòng)齒輪模具設(shè)計(jì)及工過(guò)程的動(dòng)畫(huà)設(shè)計(jì)【全套圖紙三維動(dòng)畫(huà)】(參考版)

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【正文】 Add up to ten conditions. Where condition is satisfied, its value is . Otherwise, its value is . Four output knots represent drilling, reaming, subfinish boring and finish boring respectively. Hidden level has nine knots. Table 1 is a part of learning sample to train BP network. Many neural network modules form neural network array to represent selection knowledge and link with the main system. Knowledge base and inference stratery of neural network bine tow into one. The knowledge representation of neural network is hidden. It’ inference stratery is realized by parallel putation.Table 1 The part learning sample to train BP networkInput knotoutput knot1234567891012344. Inference stratery The problem which should be solved in inference is: in every state of problem solution, how control the selection and application of knowledge, or determine control stratery and inference way.The process design task is divided into many subtasks to form a task tree in this paper. The hierarchy structure of inference is formed by the hierarchy program method, and the knowledge unit too solve subtask is found by the task control mechanism of inference. Its process is shown in .Because of the introduction of neural network and the realization of parallel mechanism the system has solved the problems such match conflict and bination explosion etc.5. Conclusion 1).The description of workpiece is plete, including geometry and manufacturing information. It is used not only in CAD, CAPP but also NC.2).According to characteristic of process design, the system employs new representation of multiknowledge, and realizes an organic bination of artificial intelligence and neural network.3).The hierarchy inference stratery provides convenience for realizing explanation of CAPP expert system. StartWorkpiece inforfationformation Knowledge base: frame structure production rule neural network Resolution of taskEngineering Data base YTranfer knowledge unit of subtask Is the task solve? NFailureDraw the knowledge of conclusion Put conclusion into the current data basesuccess The process diagram of the forward the inferenceReferences1 王先逵等. 2 3. Vant Erv。 position degree is divided there conditions。 Neural network。最后,對(duì)所有曾經(jīng)傳授我知識(shí)的老師,給過(guò)我?guī)椭耐瑢W(xué)們說(shuō)一聲謝謝,感謝你們!參考文獻(xiàn)1 ,2003年2月2 ,2004年7月3 鄭大中,房金妹,譚平宇,1998年3月5 何銘新,(第四版).高等教育出版社,1997年7月6劉品,2003年1月 (第四版).高等教育出版社,1997年7月(新版).機(jī)械工業(yè)出版社,2004年8月9李世國(guó),李強(qiáng)等主編. Pro/ENGINEER ,2004年1月10 郝利劍,張宏波,李曉輝等主編. Pro/ENGINEER ,2004年3月11 鄭文緯,(第七版).高等教育出版社,1997年7月12 詹友剛主編. Pro/ENGINEER ,2003年4月13 孫江宏,黃小龍,高宏編著,Pro/ENGINEER WildFire/2001結(jié)構(gòu)分析與運(yùn)動(dòng)運(yùn)動(dòng)仿真.中國(guó)鐵道出版社,2004年1月14 和青芳,徐征等主編.Pro/ENGINEER WildFire產(chǎn)品設(shè)計(jì)與機(jī)構(gòu)動(dòng)力學(xué)分析.機(jī)械工業(yè)出版社,2004年1月15 唐志玉主編.模具設(shè)計(jì)師指南.國(guó)防工業(yè)出版社,1999年4月16賈潤(rùn)禮,程志遠(yuǎn)主編.實(shí)用注塑模設(shè)計(jì)手冊(cè).中國(guó)輕工業(yè)出版社,2000年8月17 馮炳堯,韓泰榮,蔣文生主編.模具設(shè)計(jì)與制造簡(jiǎn)明手冊(cè).上??茖W(xué)技術(shù)出版社,1998年7月附錄A The design and realization of CAPP systemGao Peng Yuan Zhejun Gao DongDept. of Mechanical Engineering, Harbin Institute of Technology Harbin, Heilongjiang Province, China AbstractIn this paper, CAPP system is built based on the description of workpiece information and the representation of process knowledge and inference. The system uses feature technique to describe workpiece, which are divided into the most essential feature units, The expression method of multiknowledge is given according to characteristic of process design. The neural network technique is introduced successfully in building knowledge base. The formation of process route uses the forward inference of data driving.Keyword: CAPP。我將用我的知識(shí)去回饋社會(huì)。同時(shí),我也認(rèn)識(shí)到了自身知識(shí)的不足,在今后的人生道路上,我還需要不斷的學(xué)習(xí)。同時(shí),這也是一次完全不同于以往的設(shè)計(jì),它需要我們?cè)讵?dú)立完成的同時(shí),對(duì)過(guò)去所學(xué)的知識(shí)進(jìn)行完善和總結(jié)。在此,對(duì)老師所給予的無(wú)私幫助表示誠(chéng)摯的謝意。模具在當(dāng)今社會(huì)生活中運(yùn)用得非常廣泛,掌握模具設(shè)計(jì)方法對(duì)我們以后的工作和發(fā)展有著十分重要意義。圖618 回放對(duì)話(huà)框              圖619 動(dòng)畫(huà)對(duì)話(huà)框結(jié)論歷經(jīng)近三個(gè)月的畢業(yè)設(shè)計(jì)即將結(jié)束,敬請(qǐng)各位老師對(duì)我的設(shè)計(jì)過(guò)程作最后檢查。圖613 伺服電動(dòng)機(jī)定義對(duì)話(huà)框             圖614 回放對(duì)話(huà)框步驟3:定義運(yùn)動(dòng),在主工具欄中單擊“分析”按鈕,系統(tǒng)彈出分析對(duì)話(huà)框如圖615,單擊“新建”按鈕打開(kāi)“分析定義”對(duì)話(huà)框,輸入運(yùn)動(dòng)定義名稱(chēng)“運(yùn)動(dòng)定義1”,在電動(dòng)機(jī)選項(xiàng)中(如圖616)添加每個(gè)電動(dòng)機(jī)的起始和終止時(shí)間,將終止時(shí)間填在優(yōu)先選項(xiàng)中(如圖617),單擊確定,運(yùn)行,完成后單擊“關(guān)閉”按鈕。圖612 彈簧定義圖步驟2:添加伺服電動(dòng)機(jī),在模型樹(shù)窗口中右擊“機(jī)械”下“連接”選項(xiàng),顯示所有的連接,選擇連接“xiamo1”單擊右鍵選擇“添加伺服電動(dòng)機(jī)”,系統(tǒng)彈出伺服電動(dòng)機(jī)定義對(duì)話(huà)框如圖613所示,名字命名為驅(qū)動(dòng)器1圖中顯示出電動(dòng)機(jī)的運(yùn)動(dòng)方向把方向設(shè)置為向下,單擊選項(xiàng)卡中的輪廓如圖614所示,規(guī)范設(shè)置為“速度”,清除“當(dāng)前”復(fù)選項(xiàng),模設(shè)置為常數(shù)10,單擊確定。圖610 推板子組件圖611 裝配圖 動(dòng)畫(huà)設(shè)計(jì)步驟1:在Pro/ENGINEER野火版中打開(kāi)模具總裝圖,在菜單欄中選擇應(yīng)用程序機(jī)構(gòu),在模型樹(shù)窗口中右擊“機(jī)械”下“彈簧”選項(xiàng),選擇新建選項(xiàng),打開(kāi)彈簧對(duì)話(huà)框。步驟4:重復(fù)步驟3完成“”的連接,連接類(lèi)型都為“滑動(dòng)桿”,將推板與下模連接在一起,名字命名為“tuiban1”,“對(duì)齊軸”設(shè)在拉料桿和底板的中心孔上。步驟2:插入元件裝配,在文件夾中選擇“”,確定后系統(tǒng)彈出元件放置對(duì)話(huà)框,選擇放置固定當(dāng)前位置。 圖68 上模子組件重復(fù)子組件1的裝配過(guò)程,完成下模板部分,最后將塑件與動(dòng)模型腔做成圓桿連接,連接的名字命名為“sujian1” “sujian2” “sujian3” “sujian4”,約束類(lèi)型中軸對(duì)齊元件參照選擇塑件的中心軸,組件選擇動(dòng)模型腔的中心軸顯示完全連接單擊確定,接下來(lái)將廢料件與下模板用滑動(dòng)桿連接,連接的名字命名為“feiliao1”,把主澆道部分的廢料的中心軸和動(dòng)模型腔板的中心軸作為他們的軸對(duì)齊約束,選擇元件和組件的互相平行的兩個(gè)基準(zhǔn)面作為他們的選轉(zhuǎn)約束顯示完全連接單擊確定(圖69),推板部分(圖610)的子組件的裝配。重復(fù)添加約束,直至符合要求的裝配定位,單擊確定。步驟2:插入元件裝配,在文件夾中選擇定模型板,彈出元件放置對(duì)話(huà)框,選擇放置固定當(dāng)前位置,單擊確定。 裝配將模具分成五部分進(jìn)行裝配:上模板部分,下模板部分,推板部分。如圖66 沉頭孔創(chuàng)建圖 完成另外的兩個(gè)孔的繪制,如圖67所示。圖65 孔截面創(chuàng)建圖,單擊鏡向工具按鈕,選擇right為相對(duì)于其進(jìn)行鏡像的平面,單擊按鈕完成沉頭孔的繪制。 圖64 基準(zhǔn)平面創(chuàng)建圖,選擇[放置]→[編輯],彈出草繪窗口,選取DTM1平面為定義草繪平面,選取草繪參照平面為top,單擊草繪,進(jìn)入草繪界面, 在DTM1平面繪制孔的截面,旋轉(zhuǎn)角度為306,單擊按鈕完成沉頭孔的繪制。如圖63 孔創(chuàng)建圖,選擇right為參考面,偏移量輸為105 mm,單擊確定完成基準(zhǔn)平面DTM1的繪制。如圖62 矩形拉伸圖,選擇front為主參考right和top為次參考,偏移量都為0,屬性特征輸入孔的直徑為35mm,選擇,單擊按鈕完成中心孔的繪制。260mm的矩形,單擊按鈕,在屬性特征中輸入拉伸高度為22mm,單擊按鈕完成拉伸。如圖61所示。在本設(shè)計(jì)中采用反推桿復(fù)位和彈簧先復(fù)位結(jié)構(gòu),彈簧先復(fù)位結(jié)構(gòu)如圖54所示。其優(yōu)點(diǎn)是結(jié)構(gòu)簡(jiǎn)單,安裝和更換都很方便??偟囊笫欠赐茥U布置應(yīng)該對(duì)稱(chēng),這樣回程容易平衡,不易產(chǎn)生偏斜,保護(hù)推出機(jī)構(gòu)。反推桿一般固定在固定推桿的板上,隨同推桿運(yùn)動(dòng)。表51 動(dòng)模墊板厚度參考尺寸塑料制品澆注系統(tǒng)投影面積A (cm3)墊 板 厚 度 (mm)≤5155~1015~2010~5020~2550~10025~30100~20030~4020040塑料制品及澆注系統(tǒng)在分型面上的投影面積A為:A=4[(d1/2)2(d2/2)2]+4L1L2+(d3/2)2 =(d12d22)+4L1L2+d3
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