質心矩 的英文怎麼說

中文拼音 [zhíxīnjǔ]
質心矩 英文
centroidal moment
  • 質 : Ⅰ名詞1 （性質; 本質） nature; character; essence 2 （質量） quality 3 （物質） matter; substance;...
  • 矩 : 名詞1. （畫直角或正方形、矩形用的曲尺） carpenter's square; square2. （法度; 規則） rules; regulations 3. [物理學] moment
  1. Because it is impossible to adjust the air bearing absolutely balance, the difference between mass center and rotation center must lead to a notable gravity disturbance torque. in the process of identification, modeling and identification of gravity disturbance torque is considered, and an extended kalman filter is educed for identifying air bearing inertia matrix and gravity disturbance torque, and then the algorithm is validated

    由於氣浮臺平衡調試方法和手段的限制，實驗過程中氣浮臺質心與轉動中心有一定的位置偏差，必將導致較大的重力干擾力矩，在辨識演算法的推導過程中，重點考慮了重力干擾力矩的建模和參數辨識問題，推導了氣浮臺的轉動慣量和重力干擾力矩辨識的擴展卡爾曼濾波演算法，並對演算法進行了數學模擬和全物理模擬驗證。
  2. Areal patterns may be rectangular or along concentric circles, depending on the nature of the noise and on the space available for the array.

    面積組合可以是矩形的，或者沿著同心圓周布置，這取決于噪音的性質以及允許的組合間距。
  3. Abstract : large time delay exists in complicated practical processes. for example, in fccu ( fluidized catalytic cracker unit ) reactor - regenerator, the feed is preheated through heat exchanging from fractional column slurry, thus results in large time delay. a predictive control system is designed for such processes, where the kernal algorithm is dynamic matrix control. application results show that the control behavior is improved than original pid control

    文摘:實際的復雜工業過程，往往具有大的時滯，例如：煉油廠催化裂化裝置的反應再生系統，其原料油預熱通過油漿換熱實現，因此時滯特別大.本文針對這一類大的時滯過程，設計了以動態矩陣控制為核心演算法的預測控制系統，運行實踐表明：這一控制方案比原pid控制在控制質量上有較大提高
  4. The key components in laser gyro is he - ne ring laser, and the reciprocal action theory between light and medium is the base in studying the ring laser, use the lamb half classical theory, and on the base of density matrix theory, the optical brounch equation was established, which described the movement of amplifying medium atom in the ring syntonic cavity, and according to the medium polarize theory the self consistent equations was deduced, which describe the light intensity and phasic of the counter - propagating wave. on the basis of this equations, adopted the simulation software matlab and virtual instrument programming language labwindows / cvi, we can do some simulated experiments in study the phenomenas such as amplify and dispersive characteristic of medium, mode pushing effection, burned hole effection and pattern competition, lock - in of frequency and the characteristic of light intensity and phasic of the counter - propagating wave in laser gyro

    激光陀螺的核心部件為he - ne環形激光器，而掌握光與介質的相互作用理論是研究激光器的關鍵，採用拉姆半經典理論為主，在密度矩陣理論的基礎上，推導環形諧振腔中描述he - ne氣體增益介質原子運動的光學布洛赫方程，運用介質極化理論得出描述激光陀螺反向行波的光強、位相所滿足的自洽場方程組，在此基礎上，運用matlab模擬軟體和虛擬儀器編程語言labwindows / cvi ，對激光陀螺中的介質增益色散特性、頻率牽引效應、燒孔效應及模競爭、閉鎖效應及環激光的光強和相位特性進行模擬試驗研究，並且運用全量子理論，對激光工作原理進行分析，得出二能級系統單模輻射場的光子數密度分佈，得出激光場的光子統計分佈，模擬激光場的動態建立過程。
  5. Two kinds of interpolation algorithms are analyzed and concluded that the centroiding algorithm is better for star spot position estimation. the noise effects on the centroding are analyzed by numeric simulation, educes the noise rms model

    利用誤差統計理論，採用數值模擬的方法，分析了各種噪聲對矩心法質心計算精度的影響，推導整理了噪聲誤差模型。
  6. Properties of 2m 1 order generalized anti - centro - symmetric matrix

    1階廣義中心對稱矩陣的性質
  7. The centrosymmetric structural dynamical systems with damping were studied. the nearest triple matrix of the centrosymmetric with satisfying characteristic equations was found to a given triple matrix ( mass 、 stiffness and damping matrices ). finally, numerical examples were given

    3 .研究了阻尼中心對稱結構動力模型修正問題，對給定的三重矩陣（質量矩陣、剛度矩陣和阻尼矩陣） ，求滿足譜約束條件且具有中心對稱特性的「最接近」的三重矩陣，並給出數值算例。
  8. First, after the overall structure of the differential balance mechanism is determined considering the given requirement, the concrete structure of the mechanism is designed with the reference of the design method of the differential which is widely used in autos. the differential gearing system is optimized and more appropriate parameters are got with which the functional requirements can be satisfied and the weight of the mechanism can also be reduced. the surface type structure is adopted on the rocker shift, so the mechanical performance of the differential gearing system and the rocker shifts may be improved

    本文根據整車的性能要求確定了差動平衡機構的總體結構形式，以汽車驅動橋差速器及半軸的設計方法為參考，對差動平衡機構的原理樣機進行了完整的結構設計;對核心的差動輪系部分進行了優化，得出了既能滿足功能要求又可以有效減小機構質量的較合理的參數;在搖臂軸中使用了類似汽車驅動橋半軸的浮式結構，使搖臂軸所受彎矩大大降低，從而改善搖臂軸和差動輪系的力學性能。
  9. The influence of the eccentricity mass moment, position of mass center and the bearing stiffness to the vibration characteristics of the rotor system is discussed in detail ; 3. to verify the exactness of fem and learn the principle of vibration of dredge pump further, the orbit of the rotor shaft of the pump in the dredger is measured, the measurement results show : the repeat of the orbit of the rotor shaft is very bad when dredge pump is in the dredging mud condition

    模態分析確定了泥泵的振動特性（固有頻率和振型） ；諧響應分析確定了泥泵轉子軸在偏心力的作用下軸截面處的最大響應位移；研究了轉子軸的質心位置、軸承剛度和質量偏心矩對轉子軸振動特性的影響； 3 、採用軸心軌跡法，實船測量了泥泵軸工作時振動響應值。
  10. In order to analyze the effect of aberration of amplitude and phase of laser beam on centroid position of focal spot, based on the fraunhofer formula for light wave scaler diffraction theory, according to the definition of first order moment centroid position, the general expression of focal spot centroid position directly depending on the complex amplitude of near field is derived

    摘要為分析振幅和相位發生畸變情況下光束焦斑質心位置所受的影響，以光波標量衍射理論中的夫瑯和費衍射公式為基礎，根據光斑強度分佈一階矩質心位置的定義，推導了直接依賴于光束近場復振幅分佈的焦斑質心位置的一般表達式。
  11. The basic parameters of pms of the powertrain mount system are measured by the experiments, simply introduce the certainty of mass center and mass inertia quadrature, and the experimental results are obtained finally

    通過實驗對動力總成的基本參數進行了測試，分別對動力總成重心的確定和質量慣性矩的計算進行了簡要的介紹，最後給出了實驗結果。
  12. Matrices, vector and vector calculus, newtonian mechanics - single particle, oscillations, nonlinear oscillations and chaos, gravitation, some methods in the calculus of variations, hamilton ' s principles lagrangian and hamiltonian dynamics, central - force motion, dynamics of a system of particles, motion in a noninertia reference frame, dynamics of rigid body

    矩陣和向量的計算、單一質點的牛頓力學、線性與非線性的振動運動、重力、微積分上的變分法介紹、哈密頓原理、拉氏及哈氏力學、連心力下的運動、質點系的運動力學、在非慣性座標中的運動、剛體的運動。
  13. The paper also discusses the means how to perform a strategy - oriented bpr program : it makes comparisons and analyses on application of critical success factors ( csf ), proportion analysis, importance and performance matrix in selections of processes objects to be reengineered, it also lays emphasis on the application of quality function deployment ( qfd ) into bpr implementation for the " bottleneck " activities in the selected processes

    接著研究了如何以戰略為導向實施流程再造的方法：比較分析了csf法、權重分析法、績效性重要性矩陣等方法在再造對象的選取中的應用，解決了尋找企業核心流程的方法；重點研究了質量功能配置（ qfd ）法在再造實施中的應用，以尋找流程環節中的瓶頸問題。
  14. By using transfer matrix method and corresponding boundary conditions, the steady - state responses of the counter - rotating dual - rotor system were analyzed, and the changing characteristics of the disks ' orbits and the centroids ' locations were studied experimentally, proving the relevant conclusions from calculations

    針對這種結構，應用傳遞矩陣法，結合邊界條件，分析了反向旋轉雙轉子結構穩態不平衡響應的變化規律，研究了內、外轉子盤軸心軌跡和質心的變化特點，並進行了相應的試驗研究，驗證了計算模擬的相關結論。
  15. To improve the performance of the traditional icp method for the large data models of mesh watermarking, this thesis develops a new icp variant based on the framework of mesh multiresolution analysis. the author presents a novel method for acquiring the initial approximate transformation in terms of the distribution feature of points around the centroid

    為避免迭代落入局部而非全局最優解，本方法利用網格的多解析度表示特性和網格上點到質心距離分佈的特徵信息，快速有效地確定初始矩陣。
  16. As the legged system has a similar dynamics to that of three - dimensional inverted pendulum mode, whose supporting point is equivalently located at the zmp, what is more, there is dynamical relationship between the zero moment point ( zmp ) and the center of gravity ( cog ), so this paper proposed the method that controls the cog of the whole humanoid body system in real - time through the 3 - d inverted pendulum based on variable zmp : first, the irregular terrain analyzed and described, the author proposed an usual obstacles - spanning method, based on the position and the shape of obstacles, the author programmed the smooth trajectory of anklebones

    由於機器人的腿系統和三維倒立擺模型有著相似的動力學特徵，模型的支撐點就是機器人的零力矩點zmp ，另外零力矩點zmp和重心cog之間存在著動態關系，本文採用基於可變zmp的三維倒立擺動力學原理來對類人猿機器人進行質心軌跡生成。首先，通過對復雜地況進行分類統一描述，提出了一套通用的越障軌跡規劃方法，結合復雜地況下障礙的位置和形狀，規劃了機器人連續的踝關節軌跡。
  17. Overlapped seeds are separated by certain algorithm. the key problem in hole - drill planter test is locating of holes centers, which is solved by using geometry moments of discrete masses. and then the holes distance is calculated from holes centers with fairly high precision

    針對穴播機檢測中穴距測量的關鍵問題，研究了基於幾何中心矩的穴播質心、穴間距離檢測演算法，獲得較高的檢測精度；研究了基於數學形態學的重疊種子圖像檢測演算法，定義了串聯、並聯的種子分佈形式，對重疊、擠挨種子的分割進行了有效的工作。
  18. Using gyro measurements during periods of thruster firing, with thruster outputs, mass property identification is achieved through recursive least squares algorithms on the basis of the refined dynamics equation. the approach addresses the issue by segmenting the problem into two sub - problems which both allow closed form solution to reduce computation load

    該方法利用衛星上的陀螺輸出和推力器控制指令作為演算法的輸入，在修正的衛星姿態動力學模型基礎上，推導了衛星質量特性在線辨識遞推最小二乘演算法，將質心位置和轉動慣量矩陣的辨識解耦以降低辨識演算法的維數，減少計算量。
  19. The frequently used parameters such as the power in bucket ( pib ), the beam width, the curvature radius, the far field divergence, the m2 - factor, the rayleigh length and the kurtosis are calculated in term of the intensity moments

    第二章用強度矩的方法研究了hchg光束，研究了hchg光束的pib系數、陡峭度在傳輸過程中的變化以及偏心系數b和厄米多項式階數m對光束質量的影響。
  20. The air bearing is the most important part of an attitude control system simulator for simulating a satellite moving in the weightless circumstance. performance of a satellite attitude simulation system based on air bearing is decided by the inertia matrix and gravity disturbance torque arising from a difference between mass center and rotation center, and air bearing can be used to simulate the algorithm of on - line mass - property parameters identification on the ground. so the problem of mass - property and gravity disturbance torque identification for satellite and air bearing is studied in this thesis

    氣浮臺能夠模擬衛星在軌失重條件下的姿態運動，是衛星姿態控制系統物理模擬的核心部件，其轉動慣量和質心偏移引起的重力干擾力矩等決定了基於氣浮臺的衛星姿態物理模擬系統的性能，並且利用氣浮臺可以實現衛星質量特性在線辨識演算法的地面物理模擬驗證，因此本文對衛星和氣浮臺的質量特性及干擾力矩在線辨識問題進行深入研究。
分享友人
分享到 Line

分享到臉書