曲線包絡 的英文怎麼說

中文拼音 [xiànbāolào]
曲線包絡 英文
envelope of curve
  • : 曲名詞1 (一種韻文形式) qu a type of verse for singing which emerged in the southern song and ji...
  • : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
  • : 絡構詞成分。
  • 曲線 : [數學] curve; bight; bought; profile; net曲線板 french curve; irregular curve; curve board; splin...
  1. The demonstration of the conic section is an envelope of family of straight lines

    圓錐是直族的的證明
  2. This function describes the envelope of the displacement curve.

    這函數描繪出位移
  3. 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環面蝸桿傳動的參數優化設計和校核軟體系統:括幾何參數設計計算模塊,強度校核模塊,繪制齒面接觸模塊,蝸桿齒厚變化模塊和蝸桿根切判別模塊;開發了平面二次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,建立了平面二次環面蝸桿傳動公差及極限偏差數據庫;開發了平面二次環面蝸桿減速器參數化建模軟體: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。
  4. 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上可展面造型的方法:一個是作為單參數平面族面的可展面構造,另一個是作為脊的切面的可展面構造。
  5. 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、瞬時接觸方程式、根切界限方程式、嚙合界限的方程式及其存在條件,相對運動速度方向與接觸方向的夾角及接觸上各點的誘導法率;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,自動生成接觸族及嚙合界限,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。
  6. The results indicated that the efficiency of turbine was enhanced obviously, the efficiency curve overcasts the unchanged one completely. given the same output, the efficiency after retrofit design was higher than that before retrofit design, which was more distinct in high load area

    結果表明,水輪機效率特性明顯增加,其效率完全改造前的效率以上區域,在發出相同效率的情況下,改型後效率均比改型前高,在高負荷區表現尤為明顯。
  7. 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(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漂移和突跳現象;根據目標運動軌跡特點,採用二次擬合的方法,將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。
  8. The 11th pacific conference on computergraphics and applications, 2003, pp. 90 - 101. 24 hartmann e. parametric g n blending of curves and surfaces

    給定空間和正值函數,由它們定義的所謂管道面是由一族中心在上以為半徑的球體生成的
  9. We transformed the nonlinear equation of the light - wave envelope in lossy dispersion - managed optical fibers and obtained numerical curve of the equation with the use of mathematical software, then the approximate solution was found by fitting of the curve, also the envelope propagation of the quasi - soliton was analysed

    摘要對有損耗的色散光纖中光波的非性方程進行變換,藉助數學軟體得到非性方程的數值,並通過對的擬合得到方程的近似解,對色散管理類明孤子的傳輸進行了分析。
  10. This paper relates to some problems about the determination of design ground motion parameters, which include the choice of the attenuation relationship of rock horizontal acceleration response spectrum, the impact of focal depth to rock peak horizontal acceleration and rock response spectrum curves, the choice of intensity envelops function and random input phase, the choice of soil nonlinearity and shear wave velocity, scale of design ground motion response spectrum etc. in the researches of relative aspect, based on a typical section plane of the engineering site, influence of the change of some parameters on design ground motion parameters and the existing errors and corresponding rules are studied by using the method of one dimension model of equivalent linearization

    摘要研究了確定設計地震動參數中涉及的若干問題,其中括基巖水平加速度反應譜衰減關系的選擇、震源深度對基巖水平加速度峰值及基巖反應譜的影響、強度函數及輸入隨機相位的選擇、土體非性特性參數和土層剪切波速值的選擇、設計地震動反應譜的標定等問題。
  11. The influences of soil structure, confining pressure and strain amplitude on dynamic properties of recently deposited soils of nanjing and its surrounding areas are discussed. furthermore, based on test results and theoretical analysis, the averaging curves, recommended values and envelopes of dynamic shear modulus ratio ggmax and damping ratio versus dynamic strain for recently deposited soils of nanjing and its surrounding areas are presented. by use of vibration triaxial apparatus, nanjing silty clay and fine sand interbedded strata and nanjing fine sand were tested and their test results are discussed

    通過自振柱試驗,探討了土的結構性、有效圍壓和應變幅值大小對動荷載作用下南京及其鄰近地區新近沉積土的動剪切模量、阻尼比和應力?應變關系的影響;通過試驗和理論分析,給出了南京及其鄰近地區的粘土、淤泥質粉質粘土、粉質粘土、粉質粘土與粉砂互層土、粉土以及砂土等六類新近沉積土中典型土類的動剪切模量比和阻尼比隨剪應變幅值變化的平均和推薦值。
  12. The convex hull of sbgb and subdivision algorithms are also discussed

    此外,還討論了sbgb及細分演算法。
  13. The envelopes of sbgb curves and subdivision algorithms are also discussed

    此外,還討論了sbgb及細分演算法。
  14. The fabrication of specimens, the program and phenomenon of the experiment are described in detail, and the phenomenon of the experiment is interpreted also. experimental hysteretic curves are compared with calculation results utilizing integral method, and agree well. the effects of these parameters on hysteretic behaviors, monotonic curves, elastic rigidity and ductility are analyzed according to p - a monotonic curve from the experiment

    文中具體地介紹了試件的製作,試驗過程以及試驗現象;詳細分析了試驗現象;將試驗所得的p -滯回與數值計算結果進行比較,吻合良好;通過分析各參數對構件滯回性能、單調形狀、彈性剛度、延性等的影響。
  15. 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,重點闡述子午光焦度漸增形式和漸變面的構造方式。
  16. 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圖及撓度圖。
  17. Abstract : based on ks function fitting characteristics, this paper presents a new mixed envelopment method and its realization and application in smoothing propeller force curve of tilting mechanism for tilting passenger train

    文摘:基於ks函數擬合特性,提出了混合新概念及實現方法,並闡述了這種方法在光滑擺式列車傾擺機構推力上的應用。
  18. Eventually, the rehabilitated specimens were retested under low cyclic loading. the loads and displacements of the beam end as well as the steel or plate strain were measured in detail ; and furthermore, crack patterns and failure model of the specimens were also observed during the test

    在對試驗結果的整理分析后,本文對比研究了加固前後以及用不同加固方法加固的試件的開裂荷載、屈服荷載和極限承載力、梁端荷載?轉角滯回及其特徵、延性和耗能性能。
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