螺紋導程 的英文怎麼說
中文拼音 [luówéndǎochéng]
螺紋導程
英文
flight lead-
Then the nonlinear coupled electromagnetic and electron motion equations were obtained from the lorentz equation. and numerical calculation and analysis of cold cavity by pic software were applied to analyze the both hot and cold dispersion characteristic of this waveguide
接下來，從電子運動方程出發得到了自洽非線性方程組，通過一階線性近似導出了螺紋波導中注波互作用色散關系，從中分析該波導超寬帶特性。In chapter 2, an accurate modified reynolds equation is derived. the modified reynolds equation is solved numerically with the finite different method, the generated axial thrust force, minimal mucus film thickness, load capacity of hydrodynamic pressure and circumferential friction under the rectangular screw are obtained. at last, using numeral methods and coordinate graphs, the influences of rectangular screw parameters on the generated axial thrust force, minimal mucus film thickness, load capacity of hydrodynamic pressure and circumferential friction are studied and analyzed
第二章，首先推導了非牛頓流體的變形雷諾方程，化簡了雷諾方程，得出了矩形螺紋下有限差分方程；還推出了矩形螺紋作用下軸向摩擦牽引力、粘液膜厚度、粘液膜承載能力、周向摩擦阻力無量綱表達式，最後用數值計算方法求解，通過坐標圖分析了矩形螺紋參數對軸向摩擦牽引力、最小粘液膜厚度、粘液膜承載能力、周向摩擦阻力的影響。This paper studied the dispersion and the field distribution of the wave - guide with helical corrugation operating in 8mm wave band. the main works of this dissertation are listed as following : 1. based on the theory of coupled - wave, using the method of perturbation, the coupled - wave equations are derived and the rule of coupling is gotten. 2
2 .利用螺旋波紋波導的耦合波方程和模式耦合規則，得到波導色散方程，利用visualfortran平臺編程進行數值模擬，分析相關物理參數對色散特性的影響;對波導的行波幅值耦合方程進行數值模擬，從而簡化了耦合方程，在此基礎上利用visualfortran平臺編程進行數值模擬，分析螺旋波紋波導的場分佈情況。Ball screws. part 2 : nominal diameters and nominal leads. metric series
滾珠絲杠.第2部分:公稱直徑和公稱螺紋導程.米制系列In chapter 3, the modified reynolds equation is solved numerically with the finite different method, and the generated axial thrust force, minimal mucus film thickness, load capacity of hydrodynamic pressure and circumferential friction under the trapezoidal screw are obtained. at last, using numeral methods and coordinate graphs, the influences of trapezoidal screw parameters on the generated axial thrust force, minimal mucus film thickness, load capacity of hydrodynamic pressure and circumferential friction are studied and analyzed
第三章，首先求出梯形螺紋下有限差分方程，然後推導了梯形螺紋作用下軸向摩擦牽引力、粘液膜厚度、粘液膜承載能力、周向摩擦阻力無量綱表達式，並用數值計算方法求解，通過坐標圖分析了梯形螺紋參數對軸向摩擦牽引力、最小粘液膜厚度、粘液膜承載能力、周向摩擦阻力的影響。Lead error would be occurred during process thread by nc lathe. aiming at this issue, accurate thread excess was calculated. this way is simple and effectiveness in practice
摘要用數控車床加工精密螺紋時，在開始段和結束段會出現導程誤差。針對這個問題，進行了準確的螺紋裕量計算。在實際加工中，簡單易行，效果良好。分享友人