曲面的包絡面 的英文怎麼說
中文拼音 [qūmiàndebāolàomiàn]
曲面的包絡面
英文
envelope of surfaces-
Proceed from the angle of enhancing the backing off grinding accuracy of the special shaped convex curved rake surface, and in accordance with the enveloping theory of differential geometry and the designing model of new configured carbide gear shaper cutters, the mathematical model for backing - off and grinding the special shaped convex curved rake surface of the new configured gear shaper cutters was derived
從提高新構形硬質合金插齒刀異形凸曲前刀面鏟磨精度的角度出發,根據微分幾何的包絡理論及新構形硬質合金插齒刀設計模型,推導出鏟磨新構形插齒刀異形凸曲前刀面的數學模型。The thesis developed the optimization design software of geometric parameter for the worm gear including strength check module, the drawing contact lines module, the change lines of tooth thickness of worm, and the parametric modelling software for the reducer which includes parametric modelling of parts and assembly. the cad prototype system is very convenient because of its accessible interfere, simple operation and written in chinese. by input design parameters , the cad system can make optimization design and strength check for the worm gear , draw contact lines of tooth flank of worm - gear and change line of tooth thickness of worm , judge if the tooth flanks of worm undercut and if the sideward tooth of worm - gear hob come to a point , make project design and structure design for the reducer and draw its 2d parts and assembly
研究和開發了平面二次包絡環面蝸桿傳動的參數優化設計和校核軟體系統:包括幾何參數設計計算模塊,強度校核模塊,繪制齒面接觸線模塊,蝸桿齒厚變化曲線模塊和蝸桿根切判別模塊;開發了平面二次包絡環面蝸桿減速器外形與結構尺寸數據庫以及傳動效率數據庫,建立了平面二次包絡環面蝸桿傳動公差及極限偏差數據庫;開發了平面二次包絡環面蝸桿減速器參數化建模軟體:包括零部件的參數化建模模塊和裝配圖的參數化建模模塊,其中零部件的參數化建模包括蝸桿軸系的參數化建模、蝸輪軸系的參數化建模、箱體的參數化建模、端蓋的參數化建模、軸承的參數化建模和其它零部件的參數化建模軟體模塊。3. by using the dual concept between points and planes in 3d projective space, two classes of developable surfaces on c - b zier curve are constructed. the former is as a envelope of one - parameter plane family
Zier曲線上可展曲面造型的方法:一個是作為單參數平面族包絡面的可展曲面構造,另一個是作為脊線的切線曲面的可展面構造。Equations of mesh, shorting contact line, undercutting limit line, meshing limit lines and the existence conditions, angle between the direction of relative speed and the direction of contact line, induced normal curvature about every point on the contact line are established. moreover, the paper also theoretically analyzed the error of the grinded gear surface. on the basis of the theory, the computer program is worked out to automatically produce the contact line and the boundary curves of mesh. analysis of meshing circs under different parameters can be done so that we can gain the best process condition
首先對漸開面二次包絡理論進行了深入的探討,推導出了兩次嚙合的嚙合方程式、瞬時接觸線方程式、根切界限線方程式、嚙合界限線的方程式及其存在條件,相對運動速度方向與接觸線方向的夾角及接觸線上各點的誘導法曲率;此外,還對磨齒后工件的齒面誤差進行了理論分析;並在理論基礎上編制了相應的計算機程序,自動生成接觸線族及嚙合界限線,對不同參數條件下的嚙合情況進行分析,可以使工藝條件達到最佳狀態;最後研究了磨齒裝置,設計了磨齒機的傳動系統。In practice, it ’ s very hard to find any ideal scatter points to track, so this thesis focuses on the motion compensation algorithm base on motion parameters estimation, which is used in r - d fft imaging algorithm and verified by simulation. work of this thesis contains : first analyze the signal - processing model of isar system in detail, and establish a 3 - dimensional mathematical scattering model of moving target. then some improvements are made on existing compensation algorithm, to get a higher image quality and reduce compute burden
本論文有以下幾點創新: 1 .在距離向的補償(包絡對齊)方面,採用基準相關法代替相鄰相關法或積累相關法,一定程度上解決了可能出現的包絡漂移和包絡突跳現象;根據目標運動軌跡特點,採用二次曲線擬合的方法,將包絡對齊時的局部誤差轉化為全局的誤差,以便實現較優的整體對齊效果。The 11th pacific conference on computergraphics and applications, 2003, pp. 90 - 101. 24 hartmann e. parametric g n blending of curves and surfaces
給定空間曲線和正值函數,由它們定義的所謂管道曲面是由一族中心在曲線上以為半徑的球體生成的包絡。Furthermore, we carry out motion simulation to the spherical gear, gear ' sfluted disc and flexible wrist, thus confirm the theoretical analysing model. 5. we bring forward the generating cutting method based on spherical gear drive, and develop experimental cutting set - up in principle. in theory, the generating mehtod bases that the tooth form of a pair of gear is conjugated
范成法加工的理論依據在於一對球齒輪的齒廓曲面互為共扼曲面,它們在傳動過程中互為包絡面,如果將其中的一個球齒輪的齒廓做成刀具,另一個為被加工齒輪的毛坯,由機床傳動系統保證兩者之間的嚙合運動,就可以加工出球齒輪。Next, the soft method based on the dirichlet principle is given in detail. emphasis is put on the pattern of power addition along its main meridian line and the construction of the envelope of the nonrotationally symmetrical aspheric surface
其次,應用基於狄利克雷原則的軟設計方法,重點闡述子午線光焦度漸增曲線形式和漸變包絡面的構造方式。The initial strain must be the optimum value obtained by multiple - trial method. 5. in the static analysis of the bridge model under live load, assuming a shifting concentrated load on the girder, analyzing the relation map of each section deflection and the location of the concentrated load, finishing the load - on of the worst - case live load, then the moment and deflection envelope diagrams of the girder were obtained
成橋模型建立后,在後續活載作用下的靜力分析必須首先在主樑上作用移動集中荷載,分析主梁各斷面的活載撓度與集中荷載作用位置關系曲線圖,完成最不利活載的加載,從而最後得到懸索橋主梁的彎矩包絡圖及撓度包絡圖。分享友人