helical surface 中文意思是什麼
helical surface
解釋
螺旋面-
The main works are shown as followings : in order to get best economic benefits and quickest time response, the advantages and shortages of existing methods for machining twin - screws are analyzed. in view of the production of co - rotating twin - screw is various and mostly in small batch, a new approach for forming cylinder helical surface with milling cutter is put forward. it presents the theoretical foundation for machining of twin - screw
論文主要工作有如下幾點：針對同向雙螺桿產品零件的多品種、小批量的生產特點，為了取得最佳經濟效益和快速地時間響應，在查閱了雙螺桿加工有關的國內外文獻資料，研究分析了雙螺桿各種現有的加工方法的優缺點，提出了一種新的加工方法? ?用圓柱立銑刀成形加工雙螺桿螺旋面。 -
Changing the diameters and fixing angles of milling cutter can meet the machining requirements of helical surface. this method has been applied in the process of manufacturing twin - screw in rubber and plastic mechanics, which simplifies the process route and shortens the prepare time in production and at the same time saves the cost and improves technical and economic benefits
通過改變圓柱立銑刀的直徑和加工安裝角度來滿足螺旋面的加工要求，該方法已在橡塑機械用同向雙螺桿的加工中得到應用，縮短了加工工藝路線，減少了生產準備時間，節約了加工成本，取得了良好的技術經濟效益。 -
In this dissertation, for the need of engineering, berchand surface is put forward and studied which is refined and enhanced from the common characteristics of gyration surfaces, developed surfaces and normal circular - arc helical surfaces. according to which, many kinds of important surfaces can be structured
論文從工程需要出發，提出並研究了白川德曲面，這是對回轉面、可展面、法向圓弧螺旋面共性特徵的提煉與升華，據此可以構造和發展出各種有重要應用價值的曲面。 -
This essay takes the method of listing equations of gears " surface directly and installing them in appropriate coordinate system to establish the mathematic model for analyzing engagement of spiral helical gear. programs use this mathematic model to make numerical computation as well as to output the contact domains diagram and the relative velocity diagram on this foundation
本文採用直接列寫齒面方程、在適當的坐標系中安裝的方法，建立了螺旋齒輪嚙合分析的數學模型，編製程序利用該數學模型進行數值計算，並在此基礎上輸出接觸區圖和相對速度圖。 -
Through systemic analyzing on spiral helical gear transmission with different basic parameters, the essay found out rules of how can such basic parameters influence spiral helical gear engagement characteristics. so it brings forward the auxiliary assembling mode of adopting one straight gear and one helical gear on condition of little axial angle as well as treasures to ameliorate ill engagement performance on condition of large axial angle, another two jobs of the essay are to clarify the wrong concept that spiral helical gear can only transmit movement but not impetus and to provide a brief and practical method of analyzing contact for gear pairs whose surface equations can be written out directly
通過對不同基本參數的螺旋齒輪傳動進行系統研究，找出了螺旋齒輪基本參數對其嚙合特性的影響規律，提出小軸交角條件下可採用一直齒輪、一斜齒輪的齒輪副組合方式，給出了大軸交角條件下嚙合性能不良的改進措施。澄清了螺旋齒輪只能傳遞運動不能傳遞動力的誤區，為能夠直接寫出齒面方程的齒輪副進行齒面接觸分析提供了一種簡便、實用的新方法。 -
Normal section linear diagram of two gears " surfaces, which is on the arbitrary section, has also been protracted. the writing validated the correctness of the mathematical model and experimenting on contact region of spiral helical gear ' s surface validates theoretical analysis
利用計算機模擬了兩齒面在三維空間中接觸的情景；描繪了三維空間中相對速度的大小及方向；繪制了任意法截面上兩齒面法截線的圖形。對螺旋齒輪齒面接觸區進行了實驗研究，驗證了本文中數學模型及理論分析的正確性。 -
The mathematic model of co - rotating twin - screw machining with milling tool is built. according to this model the tool parameters and theoretical machining error are computed and analyzed. the technique and the approach can effectively aid the designing and choosing of cylinder helical surface machining tools for co - rotating twin - screw
建立了用圓柱立銑刀加工雙螺桿的數學模型，提出了基於接觸線的取點求距優化演算法，通過該模型和演算法實現了刀具參數的優化求解以及加工理論誤差的分析計算。 -
In this dissertation, first, based on the theory of w - n gearing, characteristic of tooth profile as well as the processing principle of helical bevel gear, a cutting meshing analysis about double circular arc profile bevel gear was carried out, the equation of meshing in the process of cutting tooth, the surface equation of generating gear as well as the general tooth surface equation of double circular arc profile bevel gear were obtained
本論文首先根據雙圓弧齒輪傳動的嚙合理論，結合其齒形特點和弧齒錐齒輪的加工原理，進行了雙圓弧弧齒錐齒輪的切齒嚙合分析，得到了切齒嚙合過程中的嚙合方程、產形輪齒面方程以及雙圓弧弧齒錐齒輪的通用齒面方程，為下一步生成雙圓弧弧齒錐齒輪的三維模型打下了基礎。 -
Bond behaviors of the interfaces between 3 surface patterns of prestressing tendons and concrete were compared, the bond mechanisms between the helical prestressing tendons and concrete were explained, and the main influencing factors on bond anchorage performance were discussed
根據試驗結果，給出3種高強預應力鋼筋在等幅重復荷載作用下的特徵荷載值與應力水平上限的關系式。 -
( 4 ) the conditions of no particle deposition or making deposited particles move along the membrane surface were determined with the help of the analysis of forces acting on particles, from which, it may be considered that in the helical flow these conditions would be easier to reach than in the axial flow. when these conditions be satisfied in the whole region, there would be no or only a dynamic cake on the membrane surface. in addition, to ensure a long time steady microfiltration, sometimes over - high flux should be avoided
（ 4 ）通過顆粒受力分析，推導出外旋流方式下顆粒不沉積膜面的條件和已沉積顆粒沿膜面滾動的條件，認為從減小顆粒的沉積到促使已沉積顆粒沿膜面的滾動等方面，外旋流方式相對外軸向流較容易實現，當膜面上所有點上都滿足上述條件時，在膜面上將無濾餅或形成一阻力較小的動態濾餅層。 -
The main contributions of this work are included as follows : ( 1 ) numerical tests of the outside axial and helical flows were carried out respectively. the velocities and pressure profiles and shear distributions have been obtained and they were compared due to the different flow field. it is concluded that when no particles are deposited, the helical flow would lower the pressure on membrane surface to some little extent but not markedly
（ 1 ）對外軸向流和外切向流兩種方式下膜器環隙內流場進行變參數數值實驗，作出流場及切應力的分佈規律，分析無顆粒沉積時層流條件下流動結構對過濾通量的影響，認為：採用外旋流的方式將對膜面壓力有削弱作用，但並不明顯。 -
Calculation of load capacity of spur and helical gears - calculation of surface durability pitting
正齒輪和斜齒輪承載能力的計算.第2部分:表面耐久性的計算 -
Calculation of load capacity of spur and helical gears - part 2 : calculation of surface durability pitting
正齒輪和斜齒輪承載能力的計算.第2部分:齒輪表面耐用性能的計算壓凹
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