線槽形式 的英文怎麼說
中文拼音 [xiàncáoxíngshì]
線槽形式
英文
slot form-
Disigning coolant channel on the firebox of liquid rocket engine to loxodrome ( equal - angle helix ) groove can improve firebox coolant capability greatly. because the width dimension of loxodrome groove is narrow and the depth is deep, some machining methods are incapable, such as end - milling or electrochemistry. according to the peculiarities, a cnc disk - cutter - milling method which is composed of five motion axes with four simultaneously interpolated ones is researched. because most firebox generatrix is composed of complex curves, it is very difficult to get cnc cutting program with manual means. in order to deal with the problem, the loxodrome mathematics model is studied, and an auto - programming software system is developed. the software system can generate cnc cutting program of loxodrome on many kinds of turned surface. the constriction - distension segment of firebox is the most representative workpiece. the sharp changing of its generatrix slope makes loxodrome milling difficult. with the theory analyzing and practice cutting experiment, some applied techniques, which include milling mode and direction, choosing cutter diameter and cutting start point setting, are developed. adopting the technology above, tens regular workpiece have been manufacturing. the two - year manufacture practice has confirmed the validity and feasibility of developed loxodrome coolant channel milling method. the developed technology is also worth to be referenced to other similar workpiece
將液體火箭發動機燃燒室的冷卻通道設計為斜航線（等傾角螺旋線）槽形，可以大幅度改善燃燒室的冷卻性能.斜航線冷卻槽的槽寬尺寸較小而槽深尺寸較大，所以無法使用棒銑刀銑削、電化學等加工方式.針對這些特點，提出了五軸控制、四軸聯動的數控片銑刀銑削加工方法.由於燃燒室外表面的母線輪廓復雜，手工編制數控加工程序難度大.為了解決數控加工程序的編制問題，研究了斜航線的數學模型，開發了自動編程軟體系統.使用該系統，可以生成多種母線輪廓回轉體外表面上的斜航線數控加工程序.燃燒室收斂-擴張段的母線斜率變化大，加工難度大，是斜航線冷卻通道加工的最典型工件.經過理論分析和實際切削實驗，研究了針對該類型工件的片銑刀直徑選擇、銑削方式和方向、刀具調整和起刀點的設置等多項實際的加工方案.採用上述的一系列技術，已經成功地加工了數十個合格工件.經過兩年多的實際生產過程應用，驗證了所開發的斜航線冷卻通道加工方法的正確性和可行性.這些加工技術的研製成功，對其他相似類型零件的加工亦具有參考意義We can use the mm5 model in definite time, definite area weather forecasting. we conclude that : : the moving route of this necw in its developing progress was direct - south along latitude, the cold air is rough, and just this made the rough vertical velocity ; the necw southern moving and conflicting with the west pacification sub - tropical high makes rough jet steam. the plenty south - west warm and wet air made by the jet stream gave the rainstorm demanded vapor ;. the rough vertical velocity by jet stream is a main reason in this rainstorm ; the mm5 model uses four - direction analysis data as its input, this avoids some errors occurred in observe and transfer, thus made the result more useful
綜合分析認為： （ 1 ） 、這次冷渦在其發生發展過程中，其移動路徑是沿經圈直線南壓，攜帶的冷空氣勢力較強，形成槽后較強的垂直運動； （ 2 ） 、西太平洋副熱帶高壓偏北位置與東北冷渦南壓形成的急流軸，把源源不斷的西南暖濕氣流輸送到遼西地區，也就是急流軸的左前方位置，為這次暴雨的產生提供了充足的水汽來源； （ 3 ） 、低空急流不但為暴雨輸送水汽，其造成的較強的垂直環流也是產生強降水的一個主要原因； （ 4 ） 、 mm5模式以四維同化資料作為初始場，最大限度地避免了觀測誤差可能造成的積分不穩定，提高了模擬結果的參考價值。Swing riveting technology, and using the screw pole going up and down the bench the head part is fixed admittedly, the mesa possesses t - slot of clamping apparatus, bench center aperture and axis coaxial, and
該機應用有第五代擺輾鉚接技術外，同時採用絲桿升降式工作臺機頭部分固定，臺面具有夾具梯形槽，工作臺中心孔徑與主軸軸線同軸，可用於夾具定位。This paper puts out the edge shapes curvilinear equations, of the edge shapes of double circular gear hob, and analyzes the tooth surfaces characterist. it also points out that the gear hob is a kind of approximate shape building cutting too ls in the whole course of using
本文提出了直槽雙圓弧齒輪滾刀刃形曲線方程式，並進一步分析了該滾刀的齒面特性，指出該滾刀從整個使用過程看，是一種近似造型的刀具。Abstract : this paper puts out the edge shapes curvilinear equations, of the edge shapes of double circular gear hob, and analyzes the tooth surface ' s characterist. it also points out that the gear hob is a kind of approximate shape building cutting too ls in the whole course of using
文摘:本文提出了直槽雙圓弧齒輪滾刀刃形曲線方程式，並進一步分析了該滾刀的齒面特性，指出該滾刀從整個使用過程看，是一種近似造型的刀具。Abstract : a new waveguide which can change the wide wall of a rectangular waveguide into a symmetric arc wall is named as a cam - rectangular waveguide. comparing to sectoral waveguide, the new waveguide has the same voltage characteristics and is easier to be produced and fixed. an approximate formula of the dominant mode fields and the normalized conductance of a longitudinal resonant slot cut in the curved wall of a cam - rectangular waveguide are given. a resonant slot linear array in c & x band is designed, in which the slot voltage distribution is equiphase and the input is matched. the input voltage stationary ware ratio and the h - plane pattern of the antenna are measured. the experimental results show the conformance with theoretical results
文摘:把常用的矩形波導一個寬面改成圓弧形構成的波導稱為圓突-矩形波導.這種波導與扇面波導相比：電性能相當；波導管結構更加簡單，容易加工，便於安裝.文中給出圓突-矩形波導中主模場，圓曲面上縱向槽歸一化諧振電導近似公式.設計了c和x波段波導曲面縱向諧振縫隙線陣，縫隙電壓相位為同相分佈，輸入端匹配.實際測量了天線輸入端電壓駐波比和h面方向圖，理論與實驗相吻合According to the special shape and operate requirements of the torpedo, the structure and moulding process of the torpedo shell are established, in which the body and overlay block with grooves are moulded by fiber winding, and close moulding respectively with the adhesive by limited stop compression. in the light of the selection of raw material system, composite system with outstanding performance are defined, based on which the mechanical properties are tested., with the overall consideration of structural characters and design demands, the main factors which may have effects on the strength and stability ( including stiffness section dimension, stiffeners space, skin thickness and skin lay angle ) is optimized one by one for the structure design parameters on the base of the fem model of skin, stiffness and layover block by fem. as a result, the prototype with 1 : 1 proportion and its structure and lay optimization design are completed. the moulding technology for polyurethane foam moulding the stiffened shell is obtai ned in terms of the design, manufacture moulding, experimental mould and tooling
依據在研產品特殊的外型結構和使用要求，確定了該型號水雷復合材料殼體的具體結構形式和復合成型工藝路線，即由纖維纏繞工藝成型主體異形件，閉模成型帶通槽外貼塊，用限位加壓工裝實現粘接的工藝路線；通過對原材料體系的篩選，確定了綜合性能較好的復合材料體系，以此為基礎進行了力學性能測試；運用有限元方法，建立了蒙皮、筋條和外貼塊的分析模型，綜合考慮結構特點和設計要求，對影響結構強度與穩定性的主要因素（包括筋截面尺寸、筋間距、蒙皮厚度、蒙皮鋪層角度）分別進行了結構設計參數的優選，最終完成了復合材料異形耐外壓殼體1 : 1樣件和縮比實驗件結構及鋪層優化設計；完成了聚氨酯泡沫胎成型內置加筋殼體的成型工藝技術研究；對縮比件進行外壓性能測試，並給出了應力、應變測試結果。In this part, the first work is pretreatment of a numerical model, including creating calculating grids automatically, improvement of the linear boundary technique and so on. the second work is to estimate the siltation of a basin or channel by liu ' s equation. the third work is to build an edbms ( engineering data base management system ) for the result of mathematical model
其中主要的工作是：其中主要的工作一是數學模型的前處理，計算網格自動生成，線邊界法的優化；二是應用劉家駒公式在長江口深水航道治理工程地理信息系統的支持下實現港池、航槽開挖的實時回淤估算；三是將計算成果形成gis管理和支持下的工程數據庫系統（ engineeringdatabasemanagementsystem ） ，同時嘗試解決時間序列數據如地形沖淤變化，潮位、流速過程的分析、查詢和顯示問題，並實現實時、互動的動態演示及三維可視化。The original flow rate formula of parobolic throat flume used for u - shaped channel is implicit function and is not convenient for calculation in irrigation districts. an simplified formula is developed in this paper, with a di fference between results calculated with the original formula and the new formul a being less than 0. 5 %
用於u形渠道量水的拋物線形喉口式量水槽原流量公式為隱函數形式，針對其使用不便的現狀，通過理論分析推導出了顯函數形式的量水槽流量公式，計算結果與原流量公式比較相對誤差值0 . 5 % 。Through the flume experimental research, the velocity distribution formulas for rectangular open channel have been found, including parabola form of velocity distribution on the vertical and power form of mean velocity distribution on the transverse direction ; meanwhile, the means of ascertaining correlative coefficient have been given in this paper
摘要通過對明渠流速的水槽試驗研究，建立了矩形斷面明渠沿垂線流速的拋物線分佈公式和橫向平均流速的乘冪函數分佈公式，同時給出了相關系數的確定方法。Nhmc fire extinguishing wire tank can be separated into two categories : nhmc - a and nhmc - b. please refer to the following chart for your reference : pattern
2 nhmc系列防火母線槽依據結構型式防火絕緣處理形式的不同，分nhmc - a ， nhmc - b ，其對應的在通電狀況下的耐火極限The ascend and descend of work bench by screw pole and it can control the rough adjust effectively, and micro - adjust by screw cap of power head, the center hole of bench are coaxial with the spindle, and it put the holder available, and added the aerosol lubricate system in the air current it has the function of filter
該機應用有國際先進的徑向鉚接技術外，同時採用絲桿升降式工作臺機頭部分固定，臺面具有夾具梯形槽，工作臺中心孔徑與主軸軸線同軸，可用於夾具定位。電控部分加裝數顯時間繼電器，數顯計數器，方便操控。Firstly, considering the molecular pump is small and the elimination of heat condition is bad, this paper presents the structure of the mb, including the material of the rotor and stator, the number of magnetic poles, the stator slot shape of mb, the layout of the magnetic poles, the coins winding and so on
首先綜合考慮了分子泵體積小、磁軸承散熱條件不好的特點，設計了分子泵磁懸浮軸承的結構，選擇了軸承鐵芯的材料，設計了磁極的布置、槽的形狀、磁極數目和線圈纏繞方式。It has adopt the advance cold rolling technology, broadened work bench and center hole is coaxial with spindle, the t - slot fix the clamping device available. the hydraulic current added the regulator to control the riveting speed effectively
該機應用有第五代擺輾鉚接技術外，同時採用絲桿升降式工作臺機頭部分固定，臺面具有夾具梯形槽，工作臺中心孔徑與主軸軸線同軸，可用於夾具定位。The handle makes the power head ascend and descend easily and t - slot on the bench are fixes the clamping tool available. the center hole on the bench is coaxial with the riveting spindle and it can put the jig on it at the accurate position
該機應用有國際先進的徑向鉚接技術外，同時採用絲桿升降式工作臺機頭部分固定，臺面具有夾具梯形槽，工作臺中心孔徑與主軸軸線同軸，可用於夾具定位。It has adopt the advanced orbital technology, process by cold rolling, broadened work bench and center hole is coaxial with spindle, the t - slot fix the clamping device available. the hydraulic current added the regulator to control the riveting speed effectively
該機應用有第五代擺輾鉚接技術外，同時採用絲桿升降式工作臺機頭部分固定，臺面具有夾具梯形槽，工作臺中心孔徑與主軸軸線同軸，可用於夾具定位。Bm12 t is a kind of medium sized orbital riveting machine and driving by hydraulic. its adopted the advanced orbital technology, process by cold rolling. the ascend and descend of power by screw pole and it can control the rough adjust effectively, and micro - adjust by screw cap of power head, the center hole of bench are coaxial with the spindle, and it put the holder available
Bm12t是液壓類中型徑向鉚接機，該機應用有第五代擺輾鉚接技術外，同時採用絲桿升降式動力頭機頭部分不固定，臺面具有夾具梯形槽，工作臺中心孔徑與主軸軸線同軸，可用於夾具定位。This thesis researches on the stability of fibre suspensions applying theoretical, numerical and experimental methods. first the linear stability analysis is performed to fibre suspensions utilizing flow stability, slender - body and orientation tensor theories. the governing equations of channel and pipe suspensions of different stability handling modes and tensor closure approximations are derived
首先綜合應用流體動力穩定性理論、細長體理論以及纖維方向張量工具，對纖維懸浮流進行線性穩定性分析，推導槽流和管流的穩定性方程，並對槽流導出在不同的穩定性分析模式以及不同的方向張量封閉格式下的多種形式方程。Simplified theories are also presented for curved beams with commonly used sections, such as i - shape, channel and h section without any symmetrical axis. linear analysis is also performed in combination with finite element method
其後就常見的截面形式（單軸對稱工字形、槽形和無對稱軸的形截面） ，對所提出的曲梁理論進行簡化，並結合有限元方法求解曲梁的線性問題。Loading different shapes of slots in the patches of antennas will cut off the original surface current and the current has to flow around the slots that make its route longer. this course is equally satisfactory in result of inserting cascade inductances in the equivalent circuit of antenna
當在貼片表面開不同形式的槽或細縫時，切斷了原來的表面電流路徑，使電流繞槽邊曲折流過而路徑變長，在天線等效電路中相當于引入了級聯電感。分享友人