轉動坐標 的英文怎麼說
中文拼音 [zhuǎndòngzuòbiāo]
轉動坐標
英文
rotational coordinates-
Analyse the tooth geometry of klingelnberg cyclo - palloid spiral bevel gear., according to the relative position and kinematic relation of the cutter heads, virtual crown gear and the processed wheel blank, established the system of coordinates of the gear cutting, dedcuced the tooth face equation of the virtual crown gear, according to relations of the gear cutting and space theory of engagement, deduced the tooth face equation of klingelnberg cyclo - palloid spiral bevel gear, and drawing the three - dimensional graphs of the virutal crown gear and klingelnberg cyclo - palloid spiral bevel gear according to the design and setting parameters
對克林貝格擺線齒錐齒輪進行齒面幾何分析。根據銑齒加工中刀盤、搖臺和輪坯的相對位置和相對運動關系建立了切齒嚙合坐標系,由矢量的旋轉推導了產形輪齒面方程;根據空間嚙合原理和切齒嚙合關系推導了被加工齒輪的齒面方程;由設計參數和銑齒調整參數計算得到齒面離散數據,繪制了產形輪和擺線齒錐齒輪的三維齒形。The integral equations governing the three - dimensional viscous flow inside the turbo - machinery in the rotating coordinate system are presented in this paper, the viscous effects are simulated by the distributed body force described by professor denton j. d. the time - marching method and explicit finite volume difference scheme are employed to solve the flow inside the turbo - machinery
本文給出了相對旋轉坐標系下葉輪機械內部三維粘性流動的守恆型積分型方程組,利用dentonj . d .教授的粘性體積力法來模擬粘性對葉輪機械內部流動的影響,採用時間推進法和有限體積差分格式對葉輪機械內部的流動進行求解。After introducing some backgrounds and the state of art of motion editing and motion synthesis, we introduce some basic operations of motion editing and show implementation results in eidolon. chapter 3 describes inverse kinematics, and two real time algorithms : ccd and jacobian transpose are discussed in detail. in chapter 4, we introduce the principle of multiple level b - spline, and motion path editing is achieved with such spline
在介紹了運動編輯和合成的一些背景知識和研究現狀后,本文第二章概述了運動編輯的一些基本操作並給出了在eidolon中的實現結果;第三章介紹了逆向運動學演算法,著重講述了兩個具有實時性的演算法:循環坐標下降法和雅克比轉置法;第四章詳細介紹了多層次b樣條原理和用其進行運動路徑編輯的方法。The 3d coordinate measurement machine form usa, universal tool microscope from germany, intellectual flatness check device, metalloid graphic analyzer, electric and pneumatic measurement instruments and high performance steering test equipment ensure the products quality and play the important role for the products development
從國外進口的三坐標測量儀、德國萬能工具顯微鏡、智能平面度檢查儀、金相圖像分析系統、電動量儀、氣動量儀和日本的高性能動力轉向系統試驗設備,保證動力轉向器的性能質量。The angular motion mathematical model of rotative vehicles is established in the body coordinate system and the quasi - body coordinate system
摘要在彈體坐標系和準彈體坐標系中建立了旋轉飛行器角運動數學模型。Permanent magnet synchronous motor ( pmsm ) drived by triphase sinusoidal current is research object in this paper. its mathematics models in several coordinate are set up, controlling principles of flux linkage and torque are discussed under dtc and the block diagram of pmsm with dtc is presented
本文以三相正弦波驅動的永磁同步電機( pmsm )為研究對象,建立了其在不同坐標系下的數學模型,並深入探討直接轉矩控制中永磁同步電機的磁鏈和轉矩的控制思想,給出控制方案。Due to the moving base existence of the minehunting and the frame structure characteristic of the sonar array, a new modeling thought in which the boat body coordinates is regarded as moving coordinates and the whirligig equation of sonar array compared with the self coordinates is founded on the basis of the euler ' s theorem and the coordinate transform is introduced. the dynamic equations of minehunting sonar array with the state matrix form are founded by settling the dynamic models with the vector form. so it offers theory foundation for analyzing the dynamic characteristic and designing robust control
由於獵雷艇作為動基座的存在和聲納基陣的框架結構特點,提出了以艇體坐標系為運動坐標系,運用變形的歐拉定理和坐標變換建立聲納基陣相對自身坐標系的旋轉運動方程的建模思想;將所建立的矢量形式的動力學模型展開整理,獲得了狀態矩陣形式的獵雷聲納基陣動力學方程,為系統動力學模型的實用化奠定了基礎。This thesis make a study on vector - contorl wvf system of asynchronous motor. in the course of study, making use of the mathematical model of asynchomous motor in mt axes. then both open - loop control system and close - loop vector - control system are respectively simulated with simulation block simulink in matlab
本文對異步電動機變頻調速系統進行了研究,利用異步電動機在二相同步旋轉mt坐標系下的數學模型,使用matlab中的模擬工具箱simulink分別對開環控制系統和閉環矢量控制變頻調速系統進行了模擬。Abstract : it is observed that the sommerfeld ' s formula for a progressive spherical wave is not covariant with respectro the rotation of the coordinate system. it contains complex partial waves that are not physical. the standing wave representation of the same formula is shown to be covariant and physical. it is applied to solve the boundary value problem of fiber optics. the radiation modes as well as the guided normal modes are obtained in closed forms. the intensity distribution in various modes is obtained. it is remarked that the mode of critical refraction is missing
文摘:說明了球面行波的索末菲公式在坐標轉動下不協變.證明了球面波的駐波表示是協變的,因而是一個物理的關系式,故適用於圓柱坐標中各類波動方程的定解問題.作為一個例,應用於光纖光學,導出了受導簡正模和輻射模的表達式,以及各模式的強度分佈First of all, we bring forward the basic project of tadil, which adapts to combined operations. it is suggested to use tdma ( the abbreviation of time division multiple access ) as the working pattern and utilize the concept of mobile ad hoc network to construct the data link network. aiming at the impact of time delay on data link and the characteristic of cooperative combat under the command of director aircraft, this thesis applies a kind of kalman filtering algorithm in polar coordinates to compensate the error of time delay, and then does the transformation of target motion parameters to obtain the current information of target
本文結合空軍裝備部某「十五」預研課題,圍繞著戰術數據鏈、多機協同多目標攻擊、超機動攻擊、空對地攻擊這四個方面展開了一系列的研究工作:本文首先給出了適應三軍聯合作戰的戰術數據鏈系統的基本方案,建議採用時分多址的工作模式,並利用移動自組織網路的概念構建數據鏈網路,同時針對數據鏈傳輸信息的時間延遲特性和指揮機指揮下的多機協同作戰特點,應用一種極坐標系下的卡爾曼濾波演算法對該傳輸延遲誤差進行補償,並在此基礎上進行目標運動參數的轉換,以獲得目標相對于某無人機的當前運動信息,且利用模擬驗證了方法的有效性。The vector control mathematical model of linear induction motor is established under the synchronization reference frame
摘要在同步旋轉坐標系下,建立了直線感應電動機的矢量控制數學模型。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。To the large - scale atmosphere, we separate the terms of the horizontal vorticity converting into the vertical vorticity, which considered as the baroclinic terms, from the terms that not including horizontal vorticity by the rules of the p coordinate transforming to the z coordinate in the traditional vorticity equation, and carry out the scale analysis, and then conclude that the baroclinic terms are able to reach the same magnitude grade as the partial derivative of the vertical vorticity to time when it takes place the large scale precipitation in the summer monsoon period in china. by analyzing the game reanalysis data from april to august in 1998 in the region of chinese continent, we found that the baroclinic terms is important to the large - scale cyclone developing above the 600hpa, and the magnitude changing of the baroclinic terms is nearly in - phase as the monsoon movement, so which imply exactly that the magnitude changing of the baroclinic terms is the one of the natural characters of the summer monsoon evolution and equivalent to the movement rule of the subtropical high of the western pacific
在p坐標垂直渦度方程中,利用p坐標向z坐標轉換的公式將水平渦度向垂直渦度轉化的所有項分離出來,這些項具有明顯的斜壓特徵,對其進行尺度分析后,得出在可以忽略潛熱釋放對渦度影響的對流層中、高層,此轉化項是大尺度斜壓渦度發展的重要項。通過對1998年48月的game再分析資料進行實際計算也發現,轉化項在東亞夏季風上升支的600hpa及以上層次對垂直渦度的局地變化貢獻很大,不能忽略。同時發現水平渦度向垂直渦度的轉化在南海季風爆發時和江淮梅雨入梅及發展過程中均有指示性意義,在南海季風爆發以後,在中國東南部地區,轉化項的大小與夏季風的活躍和中斷等活動有著幾乎一致的變化規律,這從側面也指出了,此轉化項的變化是夏季風演變所具有的本質特徵,並且它反映出了西太平洋副高在中國大陸的活動情況。A dynamics model for complete vehicle is set up in natural coordinates, and a simulation on speed changing and steering of a 4wd electric vehicle with motor - in - wheel drive is conducted
摘要採用自然坐標系下的整車動力學模型,模擬變速或轉向過程中可能存在的變化情況,進行了四電動輪獨立驅動的電動汽車模擬。By means of vector analysis, dymazttic model of sssc is deduced in dq orthogonal co - ordinate within synchronously rotating reference frame, and dynamic characteristics is invcstigatcd
採用矢量分析方法,推導了基於同步旋轉坐標系的sssc的動態數學模型,並在此基礎上研究了sssc控制潮流的動態特性。After that, according to thermal conduction theories of anisotropic materials that were irradiated with continuously modulated laser, a photothermal measuring method about the thermal conductivity tensor and the orientation of the principal axis of the conductivity of arbitrarily opaquely anisotropic materials in the descartes coordinate axes was given by virtue of the theories of so ( 3 ) group rotation
隨后又以在連續調制光輻照下的各向異性介質的熱傳導理論為基礎,通過so ( 3 )群轉動理論,導出確定任意不透明各向異性介質在笛卡兒坐標下的熱導張量和熱導主軸方向的測量方法。( 5 ) aiming at the sls technology, the relationship between the rotation angle of mirror and x, y coordinates of scanning point are derived theoretically, according to which the cli file can be translated into pmac instructors
( 5 )針對sls工藝,從理論上推導了振鏡式掃描系統中振鏡轉角與x 、 y坐標之間的關系,為cli格式文件向pmac運動程序的數據轉化提供了理論依據。At first the paper begin to study the foundation of digital curved face and space meshing principle, introduce the basic knowledge of curve theory and curved face theory, explain the mathematical tools of vector turning and coordinate conversion in the paper ; analyse the motion and relative motion of rigid body, provide the condition of gear driving continuous contact and equation of conjugate meshing
論文首先從參數化曲面和空間嚙合原理基礎出發,介紹了曲線論和曲面論的基本知識,對課題研究重的數學工具矢量回轉和坐標變換進行了說明;分析了剛體的運動和相對運動,根據空間嚙合原理給出了輪齒傳動連續接觸的條件和共軛條件方程。The assignment of the load of the steam turbine can be solved by the reverse follow, the assignment of the load of the boiler can be solved by dsfd
根據兩種規劃問題的特點,汽輪機系統負荷分配問題採用分枝限界反向跟蹤的優化演算法來求解,鍋爐系統負荷分配問題採用轉動坐標軸直接搜索可行方向法( dsfd法)來求解。And then moving coordinate system is used to transform the solving problem into a " conjunction " problem. finally, the solution of the problem can be reduced to a series of algebraic equations and solved numerically by truncating the finite terms of infinite algebraic equations
利用移動坐標法將問題轉化為「契合」問題進行求解,最終歸結為一組無窮代數方程組並用截斷有限項的方法進行計算。分享友人