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the underlying representation of the geometry must also recognize it as being shared. Normally, geometry imported from external CAD packages (not the DesignModeler application) does not satisfy this condition and so separate meshes will be created for each part/body. However, if you have used Form New Part in the DesignModeler application to create the part, then the underlying geometry representation will include the necessary information on shared faces when faces are conformal (., the bodies touch). Parts are groups or collections of bodies. Parts can include multiple bodies and are then referred to as multibody parts. If your geometry contains multiple parts then each part will be meshed with separate meshes with no connection between them, even if they apparently share faces. The Mechanical application Remended if you plan to stay within the Mechanical application to continue your work (preparing and solving a simulation). Also, if you are planning to perform a FluidStructure Interaction problem with CFX, and desire to use a single project to manage your ANSYS Workbench data, you should use the Mechanical application to perform your fluid meshing. This is most conveniently done in a separate model branch from the structural meshing and structural simulation. Step 13: Exit the ANSYS program. 1. Toolbar: QUIT 2. (check) “Quit No Save!” 3. [OK] Congratulations! You have pleted this tutorial. Even though you have exited the ANSYS program, you can still view animations using the ANSYS ANIMATE program. The ANIMATE program runs only on the PC and is extremely useful for: Step 10: Solve. 1. Main Menu Solution Solve Current LS 2. Review the information in the status window, then choose: File Close (Windows), or Close (X11 / Motif), to close the window. 3. [OK] to initiate the solution. 4. [Yes] 5. [Yes] Based on previous discussions, the warnings are accepted. The messages presented in the verification window are due to the fact that PLANE182 elements have been defined but not used in the analysis. They were used to mesh a 2D crosssectional area. 6. [Close] to acknowledge that the solution is done. .Step 7: Unselect 2D elements. Before applying constraints to the fixed end of the wing, unselect all PLANE182 elements used in the 2D area mesh since they will not be used for the analysis. 1. Utility Menu Select Entities 2. (first drop down) “Elements” 3. (second drop down) “By Attributes” 4. (check) “Elem type num” 5. “Min,Max,Inc” = 1 6. (check) “Unselect” 7. [Apply] .Step 4: Define element types. Define two element types: a 2D element and a 3D element. Mesh the wing crosssectional area with 2D elements, and then extrude the area to create a 3D volume. The mesh will be extruded along with the geometry so 3D elements will automatically be created in the volume. 1. Main Menu Preprocessor Element Type Add/Edit/Delete 2. [Add...] 3. “Structural Solid” (left column) 4. “Quad 4node 182” (right column) 5. [Apply] to choose the Quad 4 node ( PLANE182) 6. “Structural Solid” (left column) 7. “Brick 8node 185” (right column) 8. [OK] to choose the Brick 8 node ( SOLID185) 9. [Options] for Type2 SOLID185 10. Choose “Simple Enhanced Str” for the element technology. 11. [OK] 12. [CLOSE] 13. Toolbar: SAVE_DB .Define Materials .Approach and Assumptions Assume the side of the wing connected to the plane is pletely fixed in all degrees of freedom. The wing is solid and material properties are constant and isotropic. Solid modeling is used to generate a 2D model of the crosssection of the wing. You then create a reasonable mesh and extrude the crosssection into a 3D solid model which will automatically be meshed. Additionally, the mesh used in this example will be fairly coarse for the element types used. This coarse mesh is used here so that this tutorial can be used with the ANSYS ED product. .s natural frequencies and mode shapes. .參考文獻[1]賴衛(wèi)平.《臭氧紫外線餐飲具消毒柜的設(shè)計》.《家用電器科技》.1997年5月10日:2526.[2]丹妮.《健康家電——消毒柜》.《綠色中國》.2008年10月26日.[3]楊玉森.《消毒餐具盒》.《農(nóng)村青少年科學探究》.2011年78期.[4]袁強.《紫外線消毒燈的轉(zhuǎn)動裝置[J]》. 《中國醫(yī)療器械信息》. 2006(02).[5]熊詩波,黃長藝.《機械工程測試技術(shù)基礎(chǔ)》.2012年6月第3版.[6]閻邦椿.《機械設(shè)計手冊(第5版)》.[7]童心.《消毒柜:健康生活每一天》.《化學清洗》.2002年1月25日.[8]韋萬春,李瑩.《“筷子消毒機”真能消毒嗎》.《中國國門時報》.2013年3月22日.[9]趙芳.《餐具消毒方法和消毒效果的探討》.《疾病檢測與控制》.2013年1月20日.[10]潘存云,唐進元.《機械原理》.[11]濮良貴,紀名剛.《機械設(shè)計(第八版)》..文獻翻譯外文資料.唐老師在百忙之中抽出時間,每周舉行例會,關(guān)心我們的設(shè)計進度,細心詢問我們設(shè)計時遇到的困難,指出許多存在的問題,帶領(lǐng)我一步一步解決設(shè)計難題。我們當代大學生應(yīng)該具有開拓精神,既有較扎實的基礎(chǔ)知識和專業(yè)知識,又能發(fā)揮無限的創(chuàng)造力,再通過不斷學習進步,才能不斷解決實際工作中出現(xiàn)的新問題,取得事業(yè)的成功。有時一點粗心,就造成大量工作需要重做??梢钥闯霎厴I(yè)設(shè)計不只只是對這幾年來所學知識的單純總結(jié),而是對自己活學活用專業(yè)能力的一種考驗,是一種綜合的再學習、再提高的過程,這一過程對我的學習能力、獨立思考及工作能力都有很大提升作用。這件設(shè)計作品只是一個雛形,與實際產(chǎn)品有一定差距,這就是我將來要努力完善之處。經(jīng)過導(dǎo)師指導(dǎo),以及多次改進,才設(shè)計出了這么一種合理,穩(wěn)固的取筷機構(gòu),它結(jié)構(gòu)簡單,運行可靠,可以通過改變其中的一個桿件零件長度,達到適合多型號筷子的目的,滿足設(shè)計初衷。 第6章 總結(jié) 新型衛(wèi)生筷子盒取筷機構(gòu)和紫外線消毒機構(gòu)設(shè)計已全部完成,和其他部分機構(gòu)能很好組合裝配起來。最終的設(shè)計結(jié)果滿足了這些條件,考慮到了多方面的細節(jié)處理。底座四個支撐角固定,進行劃分網(wǎng)格和運算仿真。底座與筷槽為一體設(shè)計,減少零件數(shù)量,維護清洗更加方便,筷槽部分設(shè)計依照筷槽設(shè)計章節(jié)要求進行完成。底座上端為3部分,左右兩斜面,斜角同為20度,與筷子盒底部一致,后面高于斜面的部分作為對筷子盒定位的作用。右壁開有孔,用于手搖桿從中穿過。圖 燈管安放位置 本章小結(jié) 對消毒裝置的設(shè)計包括燈管選擇,安裝及照射部位的設(shè)計,從節(jié)能和尺寸兩方面考慮,選擇了飛利浦tuv6w型燈管,針對3個位置進行照射消毒,達到徹底消毒滅菌目的,滿足新型筷子盒的要求。2. 設(shè)計方案 按照筷子盒的設(shè)計,筷子盒底部為重點對筷子消毒區(qū)域,對應(yīng)在兩斜面位置應(yīng)當左右各設(shè)一盞紫外線滅菌燈。 TUV消毒燈是具有管狀的玻璃外殼的低壓汞氣放電燈,發(fā)射短波紫外輻射, (UVC),起到殺菌的作用。型號:直管型TUV(低壓汞蒸汽放電燈)。臭氧型紫外線燈管除了產(chǎn)生254nm波長的紫外線外,還產(chǎn)生185nm波長的紫外線。預(yù)熱電路需要每支燈管具有四個電極,燈管啟動有輕微的延時。同時,冷陰極燈管具有良好的運行特性,在其使用壽命內(nèi)可維持很高的紫外穿透率,甚至是在較低的溫度下。燈管的使用壽命由電極及開啟的頻率決定。殺菌燈管包括高強Slimine系列,冷陰極及預(yù)熱型燈管。為了能夠增強金屬鹵化物燈的用途,實現(xiàn)進一步的調(diào)整好燈具的輸出光譜,我們在金屬鹵化物燈的內(nèi)部設(shè)置紫外燈管,并填充一點汞在里面,這樣就會使得金屬鹵化燈的光譜分布區(qū)域完備,在通電之后能夠增強紫外區(qū)的輻射能量,從而使得金屬鹵化物燈具有更好的照明效果。(秒單位)照射,就能起到殺菌目的;;、藥液等處理;、環(huán)保無二次污染。用照射紫外線進行殺菌可完全避免以上問題。推出距離=初始位置(14mm至44mm)+滑塊行程(42mm)+筷子長筷槽長(270mm)且滿足:筷子長+初始位置<盒體長(262mm)1)設(shè)計圖: 手搖桿(單位:mm)2) 設(shè)計說明: 手搖桿設(shè)計為花鍵連接轉(zhuǎn)輪,然后用螺栓配合擋圈將轉(zhuǎn)輪固定與手搖桿一端,手柄位置設(shè)計長100mm,方便握持,然后突出的一段圓柱端是卡在底座右壁外的,限制搖桿自由度。2. 連桿設(shè)計1)設(shè)計圖:圖 連桿(