擬四元數的 的英文怎麼說

中文拼音 [nǐsìyuánshǔde]
擬四元數的 英文
quasi-quaternionic
  • 擬 : 動詞1. （設計; 起草） draw up; draft 2. （打算; 想要） intend; plan 3. （模仿） imitate
  • 四 : Ⅰ數詞（三加一后所得） four Ⅱ名詞1 [音樂] （中國民族音樂音階上的一級） a note of the scale in gong...
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 的 : 4次方是 The fourth power of 2 is direction
  1. In view of bearing capacity of the elastoplastic theory analysis, the author made a comparison between the achieved bearing capacity limit load pi / 4 of round base ( space problem ) and the limit load pi / 4 of bar groundwork foundation design ( plane problem ) from soil mechanics at home and abroad as well as foundation criterion, and explained why the value of formula in present design criterion from soil mechanics is inclined to be conservative. in the light of the author ' s many years experience of vibration test on the spot and the research work of relevant projects, the author worked over the dynamic pile testing of the bearing capacity of foundation and batholith, and gathered the parameter of dynamic analysis and testing. the author also talked over the difficult point of pile foundation design criteria in present batholith engineering world, i. e. the confirmation of batholith bearing capacity of pile end, from the following aspects : a ) confirmation of single axis counter - pressure strength of rock in house ; b ) f. e. m calculation of elastoplastic model ; c ) calculation of soil mechanics ; d ) deep well load test

    然後，對巖土工程領域至今尚未解決，甚至不為人注意的考慮地基變形的地基承載力問題進行了實用化的探討，提出了考慮地基變形的地基承載力上程計算方法；對基於彈塑性理論分析的地基承載力國內尚未見報道的空間問題得到了圓形基礎（空間問題）的承載力界限荷載p _ （ 1 / 4 ） ，並與國內外土力學專著及地基基礎設計規范中的條形基礎（平面問題）的界限荷載p _ （ 1 / 4 ） ，進行了對比，從而定量上解釋了目前設計規范引用土力學承載力公式值偏於保守的這一情況；根據本文作者多年從事現場地基工程振動試驗及相關課題的研究工作，本文以截頭錐模型模擬地基，對地基（巖基）承載力的動測法進行了研究，為各類地基（包括巖基） ，匯總了動力分析和檢測川的參數：針對日前巖土工程界應用樁基設計規范中的難點? ?樁端巖基承載力的確定問題，從巖石室內單軸抗壓強度確定、基於彈塑性模型的有限單元法計算、土力學計算及深斤載荷試驗四方面進行了深入討論；本文作者根據多年現場載荷試驗的工程實踐，對深井荷試驗裝置的核心部分? ?反力裝置，設計了側壁支撐反力加載系統，該加載系統具有實用、簡便、穩定及安個等優點。
  2. The approximation analysis result of band dipole model is obtained on the basis of the theory of mfl. the electromagnetic distribution feature of the defect in the steel panel is studied by means of simulation. the leakage magnetic distribution of the two defects and four defects plural and the defects in the column differently in the width are also assayed. conclusions that factors affecting flaw magnetic leakage to the panel also affect the column and magnetic leakage bx should be the feature of the flaw identification to several flaws are drawn

    在對漏磁檢測原理進行詳細介紹的基礎上，得出了帶偶極子模型的近似解析解，並以有限元數值模擬分析為主要手段，以鋼板上缺陷為對象，分析了各因素對缺陷漏磁場產生影響的不同規律，同時模擬分析了板上平行的兩條裂紋，四條裂紋以及柱體上寬度不同時的裂紋的漏磁場分佈特徵，得出結論:影響板上缺陷漏磁場的諸因素會對柱體上缺陷漏磁場產生同樣的影響;對于多條裂紋，宜用漏磁分量bx作為缺陷識別的特徵量。
  3. Four tem - horn antennas have been made. using these antennas two - element rain gutter tem - horn array, two - element stacked tem - horn array, four - element rain gutter tem - horn array and four - element stacked tem - horn array are been mades up of. the results of experiment accord with theory and numerical stimulation

    最後，對tem喇叭天線陣列進行了原理性實驗研究，設計了帶地板結構的半tem喇叭天線，組成二元槽狀陣列、二元疊狀陣列、四元槽狀陣列、四元疊狀陣列等，應用小信號測試，得到的結果與理論和數值模擬相一致。
  4. Using the three ? arameter solid model and the burgers four - parameter model to fit the creep curve separately, it was found that the burgers model can describe the creep process more well, and then provide parameters for finite element analysis of asphalt concrete cores for embankment dams

    用三元固體模型和burgers四元模型來擬合瀝青混凝土的蠕變曲線，發現burgers模型能夠更好的描述瀝青混凝土的蠕變過程，為土石壩瀝青混凝土心墻的有限元計算提供參數。
  5. Research work described in this dissertation consists of four parts : application of finite element methods ( fem ) in the study of pull out tests of single fiber reinforced composites ( sfrc ), fem study of fragmentation tests for single fiber reinforced composites, monte carlo simulation of fragmentation tests for single fiber reinforced composites, and a simulation of impact failure behaviors of fiber composites with a mesh free method - the sph method

    全文論述從四個方面展開的工作：單纖維復合材料抽拔試驗的有限元數值模擬，單纖維復合材料逐節斷裂試驗的有限元數值模擬，蒙特卡羅方法模擬單纖維復合材料受拉破壞過程，無網格sph演算法在復合材料受沖擊破壞過程中的v _ （ 50 ）數值模擬。
  6. In order to make the sensitivity of 2 - demension accelerometer along the two main arbors almost identical, symmetric four - beam structure that embeds a double - sides interdigitated differential capacitive with puckered beam in two directions was used as sensitive component. in addition, the differential capacitive accelerometer fabricated by bulky silicon micromechanical technique has high sensitivity, wide measurement scope, less nonlinear error, and simple converting circuit. then, the structure parameters of the sensitive component were calculated and stimulated, which results in a set of the optimized structure design parameters, main fabrication procedure and several key fabrication technology

    為使二維振動傳感器在兩主軸方向的靈敏度大致相同，敏感元件採用高度對稱的四梁結構，其中每個軸向上均採用帶折疊梁的雙側叉指電容結構，採用體硅微機械工藝製作的高深寬比叉指電容式敏感元件，具有高靈敏度、寬量程、非線性誤差小、外圍電路簡單等優點;對設計的敏感元件結構參數進行了計算，並利用有限元法進行了模擬分析，根據模擬結果得出了優化參數;在確定敏感結構的基礎上，研究了敏感元件採用體硅微機械加工工藝製作的工藝流程和關鍵工藝技術;對敏感晶元內部的c - v介面電路進行了原理設計與分析，利用差動測量技術得到由振動引起的微小電容變化量，經c - v介面電路進行相位調制處理，然後通過解調輸出與加速度成正比的電壓信號。
  7. Through analyzing all kinds of construction methods of building metro station under shield driven method in many countries, this paper studies the construction technique ( method ) of building metro station under shield driven method, taking in guangzhou no. 3 metro line, and linhe xilu station as the actual object. according to station class, function and topography and geology, the station schemes of twin - bore tunnel ( island ), firstly, three parallel tunnels ( island ), tri - bore tunnel ( island or side ) and four parallel tunnels ( island or side ) are proposed. secondly, the shape and main parameters of station structure on two schemes are analyzed with load - structure mode, for different overburden depth of tunnel and lining thickness, etc. thirdly, the construction process is simulated in 2d fem.,

    根據建站的規模、使用功能及站位地形地質條件，提出了兩連拱結構島式站臺車站、三條平行隧道島式站臺車站、三連拱結構島式和側式站臺車站以及四條平行隧道島式和側式站臺車站方案；採用荷載?結構模式，對四種方案的主體結構的形式和重要參數進行分析研究，分不同的埋深、襯砌結構厚度和拱形結構的拱跨比進行了多組數值計算；採用平面有限元方法對四種車站結構的開挖施作過程進行了模擬分析。
  8. Adopt project practical quaternion algorithm of strapdown navigation system, analyze systematic error source, emulation prove the output change of sins in there is device error of inertia and the initial condition of collimation error

    採用了工程上實用的四元數捷聯導航系統的演算法，分析了系統誤差源，模擬驗證了捷聯慣導系統在有慣性器件誤差及初始對準誤差情況下的輸出變化。
  9. The thesis describes the conception of the object - oriented modeling and integrated simulaton enviroment, and discusses the below topics : ( 1 ) describe the reasonable structure of the modern fighter simulation system, and design the data transfer interface. ( 2 ) discuss the modeling method of the key subsystem of future fighter system especially the aerodynamics and the control system in detail. ( 3 ) construct the 3d model of the aircraft and scene, and verify the graphic simulation technique based on pc

    本文詳細討論了面向對象建模方法以及一體化模擬環境的基本概念框架及基本結構並在此基礎上提出了合理的現代戰斗機模擬系統結構，設計了模擬系統的數據傳遞介面；詳細討論了現代戰斗機模擬系統關鍵子系統? ?飛機本體、飛行控制系統建模方法；建立了用於研究的飛機以及視景的三維顯示平臺；並在此基礎上實現了實驗性的基於pc的現代戰斗機圖形模擬平臺，對模擬模型有效性確認和驗證工作做了初步的探討，研究比較了傳統飛行動力學和運動學方程和四元數法在飛行模擬中的效果。
  10. Under the condition of space moving changed system and the engineering practice, a function of the pixel dimension, the mtf of ccd sensor imaging, the width of target strip and the image motion has been acquired 4. under the condition of one pixel image motion and the nyquist frequencies, adopting the convolution method, the ratios of the mtf with image motion to the idea mtf are 0. 667

    這樣就為在工程實際中，在空間移變條件下，求取了ccd探測器影像的mtf 、像元尺寸、影像分辨力和像移量四者之間的一個簡潔的函數關系:材了萬二1一（ 2 + n一m ） 2 ? o4n4 .採用模擬的方法和採用卷積方法的比較。
  11. Further, analyse the characteristic of the seismic wavefield of fractural reservoir and the influence caused by fracture density, property of the filled material and the strike of fracture. fifthly, in term of research of zhangshulun et al., concisely discuss the arithmetic of the plane wave forward modeling and migration with phase shift method, in prestack common offset gathers and check the arithmetic by numerical simulation

    第四，用基於彈性?聲學近似的反射系數計算公式和本文提出的付氏變換子波生成法得到縫洞模型的反射系數模型和子波模型並用vrselrf波場延拓運算元對其進行地震波場數值模擬；進一步分析了縫洞儲層的地震波場特徵及縫洞密度、充填物性質和裂縫走向對其波場特徵的影響。
  12. In succession, the theory of chirped - pulse amplifier system is given in detail, firstly, studying from designing experimental light road and optical components to theoretical analysis, we par ' tly finished the system by ourselves. about ultr a - shoft pulse with a pulse - width of 9. 8f s and output power of 650mw and band - width of about l 20nm is output from oscillator source, secondiy, the stretching capacity of single grating four - pass stretcher is measured using abcd matrix combining collins function, and the effect of relativ e parameters to the streching ratio is also simulated. thirdly, a new type of disjunctional frequency moduiating function is provided according to the gain - narrowing and gain - saturation which are appeared in the co urse of amplification, under modulating the two effects are both controlled on some e xtent, fourthiy, the effect of ase that is often ignored by people is analyzed and the resolving methods are also given

    從光路、光學元件的自行設計到理論分析計算，初步建立了一臺實驗系統；採用abcd矩陣法結合collins公式計算了四通式單光柵展寬器的展寬量，並模擬了相關參數對展寬比的影響，對實驗具有指導意義；評價了再生放大器和多通放大器的優缺點，對放大過程中通常忽略的放大自發輻射現象（ ase ）進行了分析，並提出了相應的解決方法；針對放大過程中出現的增益窄化和增益飽和現象，對輸入種子脈沖提出了一種新的分段頻率調制函數，實現了對增益窄化效應和增益飽和效應的共同抑制；提出了系統的材料（包括放大介質和光路中的普通介質）正是融合高階色散的來源。
  13. Using commercial finite element software ansys, the numerical simulations of the forming processes of decorated rib and handle, which are key positions in the door outer are conducted and investigated the differences of vpf and tradition forming. by using numerical simulation that investigates the effects of viscous injection flow rate on plank ’ s vpf formability and based on those investigated four - aluminum alloy ’ s vpf. the die has been designed for the door outer ’ s viscous pressure forming

    首先採用商用有限元分析軟體ansys對車門成形中的關鍵部位裝飾筋和把手的成形進行了數值模擬，對比分析了粘性介質壓力成形與剛性模成形的特點;分析了粘性介質壓力成形過程中，粘性介質的注入速率對成形試件壁厚分佈的影響，在此基礎上對四種常用的6000系列鋁合金板材的粘性介質壓力成形進行了有限元數值模擬。
  14. In the model, components of upper frame structures, such as beams and columns, are simulated with plane 4 - node quadrilateral parametric elements, and soils with plane 4 - node quadrilateral parametric elements

    模型中採用平面四結點等參數單元模擬上部框架結構的樑柱構件。
  15. According to the principles 、 the implement processes and application examples of the finite element numerical simulation method, this paper has forecast fractured reservoirs of the structural fractures in sichuang basin and evaluated the favorable exploration blocks for natural gas with this method, and good results has been gained in guiding the natural gas exploration of marine strata

    依據有限元數值模擬法的原理、實現過程和應用實例，對四川盆地裂縫性儲層的構造裂縫進行了預測，並用該方法對天然氣勘探有利區塊進行了評價，對指導海相天然氣勘探取得了較好的效果。
  16. At the meantime, the rock mass may alternate between loading and unloading and it exists in certain kind of liquid, such as surface water, unconfined water, confined water etc for its intrinsic crannies. the practical rock mass concerned project must solve the key stability pr oblem after the understanding of the complicated mechanical characteristic and the deformation trends to guide the following project design and construction for the demand of security, economy, feasibility and validity. however, the intrinsic nonlinearness and complexity of the engineering rock mass become the main difficulty to predict the stability and deformation, the corresponding structure design must ensure enough safety with all the determinate or random force combination, so a model without the geometry distortion and constitutive equation warp is necessary to be built for the quantificational analysis of practical structure ' s stress, for the simulation of the real process and for the determinate evaluation system and optimization

    由於實際工程巖體其固有的非線性和復雜性，使得求解對應的諸如其穩定性、變形等問題面臨較大的困難，而有關的工程結構的設計必須保證該結構在外來因素的作用下具有足夠的安全度、經濟性和合理性，這必然要求對巖體及其工程結構的受力與變形有一套量化評判體系和優化技術，抓住實際工程問題的本質特徵並建立可行的符合幾何模擬、本構模擬、受力模擬、過程模擬四原則的求解模型，通過該模型的數值模擬成果來指導巖體工程的設計、施工及運營、管理；而巖體結構面的存在使得基於傳統連續介質力學理論的理論分析和數值模擬面臨巨大的挑戰，物理模擬的試驗周期和成本也大大增加，而巖土體工程問題則成為典型的數據有限、了解程度有限類問題，這類問題的解決需要綜合應用理論分析、經驗判斷、物理模擬和數值模擬等方法，數值模擬可以完成目前許多技術手段無法完成的實驗，如參數控制，復雜條件下的邊界條件的處理，同時數值模擬具有高可重復性，且數值模擬的成本和人力開銷等遠低於物理模擬，因此研究巖土體工程問題的流形元數值模擬方法是一項具有理論和實際工程應用價值的重要課題。
  17. Visual modeling and simulation of coaxial optic system based on quaternion method

    基於四元數方法的光學系統可視化建模與模擬
  18. The quaternion feedback control laws was studied for the three - axis stabilization control using reaction wheels, a design method for the pid controller parameters was presented and the simulation results indicated that the control algorithm works efficiently

    針對以反作用飛輪作為執行機構的三軸穩定控制情形，研究了四元數反饋控制演算法，給出pid控制器參數的設計，模擬結果驗證了控制器設計是合理的。
  19. Then the simulative model of six - degree of freedom in ocean current is established. 3 the ultimate angle in the simulation can be resolved when the law of quaternion is applied

    3 、為防止模擬過程中出現奇異解，將四元數原理運用到模擬建模過程中，解決了模擬過程中可能出現的極限姿態角無法求解的問題。
  20. Push - pull current mode hfl inverter also is composed of four power switches. the simulation and experiment of a 500va experimental prototype indicates that this circuit has the advantages of less components, simple topology, the ability of four quadrant operation and high efficiency. the inverter does not need the symmetry of the components " parameters and can be applied to dc to ac conversion with single low input voltage source

    推挽雙向電流源高頻鏈逆變電路也是由四個功率管組成， 500va的原理樣機的模擬和實驗研究結果表明，該電路元器件少、電路拓撲簡單、能夠四象限可靠運行、變換效率高，並不要求器件參數的完全對稱，適合於輸入電壓較低的場合。
分享友人
分享到 Line

分享到臉書