helical groove 中文意思是什麼
helical groove
解釋
螺旋槽-
Abstract : this artical presents the principle and equipment for slotting large modulus gear with helical teeth and herringbone gear with narrow slot cutter groove
文摘:介紹了在大型普通滾齒機上插削大模數斜齒輪和小空刀槽人字齒輪的原理與裝置。 -
A theory for the analysis of the arbitrarily - shaped helical groove structure is obtained by means of an approximate field - theory
採用近似場論的方法，獲得了一種分析任意槽形螺旋槽結構的普遍理論。 -
Considering the influence of high evanescent modes, we have obtained the common theory. by the comparing between theoretical calculation and experimental data, we found the theory can accurately describe the high - frequency characteristic of this kind of slow - wave helical groove structure. then, five representative shapes are chosen and researched particularly ( triangle shape, cosine shape, trapezoid shape, rectangular shape and swallow - tailed shape )
主要工作成果和創新之處在於: 1 .通過考慮高次模式的影響，獲得了一種更為精確分析任意槽形螺旋槽結構的普遍理論，經與實驗測量值比較，發現它更能準確可靠地描述此類螺旋慢波結構的高頻特性，然後詳細研究了五種槽形狀（三角形槽、餘弦形槽、梯形槽、矩形槽和燕尾形槽）對螺旋槽慢波系統導波特性的影響。 -
For the first time we investigate detailedly on the theory of the conductor - centered arbitrarily - shaped helical groove structure. we divide the arbitrarily - shaped helical groove into many consecutive small rectangle area to approximate the original groove. the recurrence relation of the admittance is obtained
首次對具有中心導體軸的任意槽形螺旋槽結構的普遍理論進行了研究，通過以多層矩形階梯來近似代替任意形狀槽的邊界的方法，同時對導納的遞推關系進行了詳細的推導。 -
Various successive partial plastic forming methods for processing groove, including thread rolling, cross rolling and skew rolling, splitting, rolling of spline shaft, split rolling, open - die extrusion of spline shaft / gear, extrusion of internal screwed tooth socket parts with large helical pitch, integral cold forging for slot commutator, extrusion - ploughing for outside fin tube, drawing of tube with spiral internal / external ribs etc. have been introduced briefly
摘要介紹了用於加工槽的各種連續局部塑性成形方法，包括螺紋軋制、橫軋與斜軋、分劈、花鍵軸滾軋、劈分軋制、花鍵軸齒輪開模擠壓、花鍵套擠壓、槽型換向器整體冷鍛、外翅片管擠壓一犁削、內外螺紋管拉拔等。 -
( c ) for the helical swallow - tailed structures with same groove width, the deep groove depth one which is suitable for the use in a interaction system of high power twts, has the largest coupling impedance and the lowest phase velocity in comparison with the other different groove profiles
（ 3 ）具有相同槽日寬度的燕尾形螺旋槽結構在槽深度較深情況下用作大功率行波管的互作用系統具有最大的耦合阻抗和最低的相速。 -
( b ) when the depth of the groove is relatively shallow, the helical triangle - shaped helical groove has the widest bandwidth, the least dispersion, and the fastest phase velocity
（ 2 ）當槽的深度較淺時，三角形螺旋槽的通頻范圍最大，且色散最弱，其中波的相速和群速最大。 -
By a large amount of calculations, the influence of the structure dimensions and the dielectric parameters on dispersion characteristic and coupling impedance of this kind of slow - wave structure is obtained. then, the linear beam - wave interaction theories of the arbitrarily - shaped helical groove waveguide and the dielectric into the arbitrarily - shaped helical groove waveguide are deduced. by the numerical calculations, the relationship is got between the small signal gain, bandwidth, electromagnetic " hot " velocity and the electronic beam, the structural parameters
通過數值計算，獲得了此類慢波結構的色散特性和耦合阻抗隨結構幾何尺寸和介質參數的變化規律;在此基礎上，建立了任意槽形螺旋槽及中心加介質棒的任意槽形螺旋槽行波管的注-波互作用線性理論，並編製程序，計算了管子的小信號增益、帶寬、電磁慢波的「熱」相速與電子注參數、結構參數之間的關系，獲得了增加帶寬或增益的途徑。 -
The research on the rf characteristics of the conductor - centered helical groove sws. ( a ) in the " cold " system, we found that the changing of depth of the groove has no distinct effects on the phase velocity at the lower frequency region ; but with the increasing of the frequency, the phase velocity and bandwidth are reduced slightly, the structure is more dispersive and the coupling impedance is enhanced
對具有中心導體軸的矩形螺旋槽慢波系統的高頻特性進行了理論研究： （ 1 ）在冷系統中的研究結果表明：頻率較低時，槽深的改變對相速的影響不是很大，隨著頻率的增大相速略有減小，同時帶寬也有所減小，色散變得稍強，耦合阻抗增大。 -
The gain computation for the traveling wave tube with ridge loaded helical groove
脊加載螺旋槽行波管的小信號增益計算 -
( b ) the linear fluid model is used to study the conductor - centered helical groove twt. we have analyzed the effects of the beam parameters on the gain and the bandwidth of the twt
（ 2 ）我們用線性理論模型研究了具有中心導體軸的矩形螺旋槽行波管內的注-波互作用特性，對電子注參量對小信號增益和帶寬的影響進行了分析。 -
In this dissertation, we have made detailed theoretical study and numerical computing on some new types of helical groove sws including the conductor - centered rectangle - shaped helical groove and the conductor - centered arbitrarily - shaped helical groove ; several important new conclusions and valuable results are achieved and listed as the followings : 1
本論文從理論研究和數值計算兩方面對一類新型的具有中心導體軸的矩形螺旋槽慢波系統以及我們提出具有中心導體軸的任意槽形螺旋槽慢波系統進行了深入的研究。主要工作成果和創新點在於： 1
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