環首螺 的英文怎麼說
中文拼音 [huánshǒuluó]
環首螺
英文
eyebolt-
The main popular theoretical method adopted to study end - plate connection is finite element technique under monotonic loading at present. this paper applies nonlinear ( material, geometry and contact ) finite element method to analyze the behaviors of connections under cyclic load at fist time. contact elements are set between end plate and column flange, screw cap and neighborhood plane, bolt bar and hole
對于端板連接的理論分析，目前國內外的研究主要局限在單向加載有限元分析范疇，本文首次採用三維非線性（包括材料、幾何與狀態非線性）有限元對端板連接進行了循環加載分析，端板與柱翼緣間、螺栓頭（帽）與相鄰板件間、螺栓桿與孔壁間都設置了反映邊界狀態的接觸單元。In the course of developing and before application, the performance of carrier - borne aircraft illuminated guidance system under the environmental state of movement should be tested firstly, especially the performances and state measures of glide indicator, rolling indicator and gyrohorizon which offer ship ' s movement postures to carrier - borne aircraft in the illuminated guidance system, this needs to offer a artificial carrier on the land that can imitate ship ' s movement in the water. at present, simulating table only has single degree of freedom at home application to carrier - borne aircraft illuminated guidance system which need change test and measurement situation and adjust benchmark in the course of experiment
艦載機燈光引導系統作為艦載機著艦引導特輔裝置是載機艦船上不可或缺的特種裝置，是保證飛行員的生命安全和艦載機安全回收的重要手段。其在開發過程中以及正式安裝使用前，首先要通過在運動環境狀態下的性能測試，特別是燈光引導系統中為艦載機提供艦船運動姿態的下滑指示器、橫搖指示器以及陀螺地平儀的性能和狀態檢測，這就需要在陸地上為它們提供一個可模擬艦船在水面運動的載體。Based on the review, the fluid flow and heat transfer in the curved circular and rectangular pipes have been researched by employing perturbation method and numerical simulation with a physical model under the rotational orthogonal curvilinear coordinate in a rotating curvilinear pipe with multi - parameters. we firstly analyzed the fully developed fluid flow and heat transfer, mixed convection heat transfer, the development of flow and heat transfer in the inlet in different cross section ( circular, elliptical, annular and rectangular crossection ). the variations of the secondary flow, axial velocity, distribution of temperature, the friction force on the wall, the ratio of friction factor as well as the nusselt number with different dimensionless parameters had been examined in detailed
本文在總結和分析了一個世紀以來有關曲線管道流動和換熱特性的研究成果的基礎上，以旋轉正交曲線坐標系統下的多參數旋轉螺旋管道中的對流傳熱為物理模型，通過攝動方法和有限體積法，首次對各種截面（圓截面、橢圓截面、環形截面、矩形截面）旋轉曲線管道內充分發展流動的流動結構和傳熱特性（包括耦合對流傳熱特性）以及旋轉曲線管道開口段發展流動的流動結構和換熱特性進行了系統的數值模擬和理論分析，詳細討論了各種無量綱參數對管道內軸向速度分佈、二次流結構、溫度分佈、壁面摩擦力、摩擦系數比以及管道nusselt數的影響，獲得了若干創新性成果。3 using current injecting frequency modulation method and modulating sine wave around the resonator point, the lock - in phenomena is observed in a comparatively short period of time. this has achieved the basic goal for a closed loop r - fog
3 、採用電流注入法，在諧振點附近進行正弦調制，實現了對諧振點的短時間鎖定，達到了閉環光纖陀螺設計的首要基本要求。The method of torque - angle is adopted as the control method of the intelligent screw tightening machine on the basis of analyzing the excellence and deficiency of all kinds of control methods and taking practical situation into account. secondly, the design of the machinery of the tightening machine is explained in detail, almost all parts of the structure principle diagrams are given and an introduction of function of each part in the diagram is made concisely
文章首先對螺紋擰緊的控制方法進行了探討，在分析各種方法優缺點和結合實際情況的基礎上採用扭矩轉角法為螺紋自動擰緊機的控制方法。然後，文章詳細地介紹了擰緊機的機構部分設計，給出了擰緊機的各部分的結構原理圖，並對原理圖中的各個環節的功能作了簡要介紹。The effects of the slipstream boundary are solved by the slipstream boundary condition met using the so - called vortex image method. based on these considerations, the change in the circulation around the wing is obtained, and the velocities induced by the original vortices and the imaged vortices at the wing are subsequently derived. the present research also gives an analytical expression of the drag change due to the slipstream interference
對于滑流邊界的影響，用「鏡像法」來使滑流邊界條件得到滿足，導出了由於滑流影響機翼環量的改變，求得渦及其鏡像在機翼處的誘導，並首次導出了螺旋槳滑流對機翼阻力特性的影響的解析表達式。In this thesis, a novel structure of silicon - based passive ring waveguide resonation cavity is firstly introduced and designed. the design is combined with the mems technology, which gets rid of the curved waveguides in the previous waveguide ring resonation cavity and facilitates optical integration. the structure has characteristic of " the smaller the resonation cavity, the smaller the loss ", which has a promising future of miniaturization and fits the field of resonation rmog
本文首次提出並設計了一種新結構的硅基無源環形波導式諧振腔，該設計與微機械技術相結合利用集成反射鏡實現光波導直角轉彎，擺脫了以前的波導式環形諧振腔中必需包含的彎曲波導，易於光學集成；同時該結構具有諧振腔越小損耗就越小的特點，有很好的微型化前景，很適合應用於諧振式微光陀螺（ rmog ）領域。In this paper, for the first time, it is proved that oct is an open loop system, so that the adaptive optical transducing principle on independent variables and the solenoid collecting magnetic field optical transducing principle are presented. based on the above two principles, the methods are gained to improve the precision and stability of oct, and the new adaptive optical current transducer ( aoct ) had been developed
本論文在深入研究oct的原理、結構和運行特性的基礎上，首次在理論上證明了oct是開環系統，並首次提出了獨立量自適應光學傳感原理和螺線管聚磁光學傳感原理，進而得到了提高oct測量精度和長期運行穩定性的有效方法…光電獨立量自適應光學傳感原理和螺線管聚磁光路結構，並以此研製成功了新型的自適應光學電流互感器（ aoct ） 。On the base of brief introduction simple theory of genetic algorithms, we discuss the value of each genetic operator and the means of genetic operation. correct scheme of genetic algorithms is given out according to the special bolted sphere node. the genetic algorithms optimal program is compiled in the environment of matlab using the method of transferring parameters among the main function and the sub - function
為此，首先分析了螺栓節點球的球心誤差，並通過矩陣變換理論給出計算球心誤差的公式，進一步討論了自動分度角度的計算方法；在簡介遺傳演算法的基本原理的基礎上，對各遺傳運算元的取值及遺傳操作方法進行了討論，針對典型的螺栓節點球零件給出了具體的遺傳演算法執行方案；通過matlab軟體編程環境進行程序的編制，利用主函數和子函數之間參數傳遞的方法實現了遺傳演算法優化，並且編制了圖形用戶界面，對優化結果採用圖文結合的形式輸出。分享友人