有限矩定理 的英文怎麼說

中文拼音 [yǒuxiànjǔdìnglǐ]
有限矩定理 英文
finite moment theorem
  • 有 : 有副詞[書面語] （表示整數之外再加零數）: 30 有 5 thirty-five; 10 有 5年 fifteen years
  • 限 : Ⅰ名詞（指定的范圍; 限度） limit; bounds Ⅱ動詞（指定范圍, 不許超過） set a limit; limit; restrict
  • 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
  • 定 : Ⅰ形容詞1 （平靜; 穩定） calm; stable 2 （已經確定的; 不改變的） fixed; settled; established Ⅱ動詞...
  • 理 : Ⅰ名詞1 （物質組織的條紋） texture; grain （in wood skin etc ） 2 （道理;事理） reason; logic; tru...
  • 有限 : limited; restricted; finite; a little; not much
  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. The signal we named it fundamental wave ; according to the fundamental wave, coefficients of the fundamental wave can be lined in a sequence. when the unique of the dissolve of the fundamental wave can be confirmed, the sequence of the coefficients can be regarded as one of representation forms of the signal itself ; theory of dissolvable signal shows that when order of the matrix of fundamental wave sampling equals to number of fundamental waves, the sequence of the sampling values from sampling points must be matched one by one with the sequence of the coefficients of fundamental waves. the sampling composed by sequences of the sampling values must be full sampling ; the relevant deductions of the theory of dissolvable signal shows that when sampling the signal, sampling frequency must be lager than the ratio of the number of fundamental waves to the occupation time of the fundamental waves ; to band - limited signals, when the fundamental wave is a sine signal, the results from the relevant deductions of theory of dissolvable signal is coherent to the classic sampling theory

    本文通過分析認為，當信號集中的任一信號可表示為一系列已知信號的線性代數和時，信號集便構成可分解信號集，已知信號稱為基波信號；對可分解信號而言，基波系數構成一序列，當對指定的基波信號集分解唯一確定時，系數序列本身便是信號的一個表示；可分解信號采樣定理指出當基波樣值矩陣的秩等於基波數時，則由采樣點處的采樣樣構成的樣值序列必與基波系數序列一一對應，從而由該樣值序列構成的采樣必為完全采樣；可分解信號采樣定理中的推論指出，對信號集進行采樣，采樣頻率必須大於其信號分解的基波數與其對應時長之比；對有限帶寬信號，若基波信號為正弦信號時，由可分解信號采樣定理推論給出的結論與經典采樣定理一致。
  3. According to the analysis of reviewing the history and status quo of development of internal seed industry, the course of international seed industry, this article analyses the inner and outer environment of china seed industry ( especially sichuan nongda high - tech agriculture co., ltd. ) and puts forward the suggestions of developing tactic objective, operation system and commitment by practicing certain tactic theory, using the combinative analysis of classification and ration, wielding the tactic analysis tool such as pest analysis, value chain analysis, swot analysis,

    本文通過對國內種業發展的歷史回顧、發展現狀及國際種業發展歷程的分析，應用有關的戰略理論基礎，採取定性與定量分析相結合的方法，運用pest分析、價值鏈分析、 swot分析、 efe矩陣、 ife矩陣、 kt決策法等戰略分析工具，對中國種業，特別是四川農大高科農業有限責任公司（簡稱川農高科）的內外部環境進行了全面、系統的分析，提出了發展戰略目標、運作體系及實施建議。
  4. In this paper, the drive theory of the large ratio friction transmission is studied ; a new type elliptical cam wave generator is designed ; the large ratio friction transmission prototype is designed and manufactured ; based on the ansys finite element method software, structure of the elliptical cam is analyzed ; precision index of the manufactured large ratio friction transmission prototype, such as transmission accuracy, least step, stability of the least step, load capacity is measured by the absolute rotary encoder. by analyzing the measurement data and research content, it is think that the new elliptical cam wave generator could overcome a good many problems brought by processing errors, facilitate size precision adjustments, input moment can be achieved in the form of a pure force couple importing ; through this study, " the large ratio friction transmission prototype " could apply in practical engineering basically

    本文研究了大速比摩擦傳動的傳動理論;設計了新型橢圓凸輪波發生器，設計製作了大速比摩擦傳動樣機;用軟體ansys對所設計的橢圓凸輪結構進行了有限元分析;用19位絕對式編碼器測試了大速比摩擦傳動機構的傳動精度、最小步距、最小步距的穩定性以及帶負載能力等各項精度指標;對測量數據和研究內容進行了歸納和整理，認為新型橢圓凸輪波發生器克服了加工誤差帶來的諸多問題，新型橢圓凸輪波發生器可以進行尺寸精度調整，能夠達到輸入力矩以純力偶的形式輸入;通過本項研究，基本可以使「大速比摩擦傳動機構」在工程中得以應用。
  5. Finally, the thesis primarily sets up the internal force model of the supporting structure system in the bi - arch tunnel, namely, the distribution model of the surrounding rock ' s pressure, the internal force model of the steel framework and the axial force model of the anchor bolt, and these results can have the guiding significance to the design and construction of the similar tunnel engineering

    最後，結合有限元的理論計算及現場實測數據的分析，初步建立了雙連拱隧道支護結構體系的內力模型，即：圍巖土壓力模型、初期支護鋼拱架內力（主要為軸力和彎矩）模型以及錨桿軸力模型。充分理解和闡述了構件的工作狀態，對今後類似隧道工程的設計和施工具有一定的指導意義。
  6. Point to above problems, under the financial support of the national natural science foundation ( exploration of high tech and new concept and new conceive ), the excellent young teachers program of ministry of education and national excellent doctoral dissertation special foundation, the static and dynamic real - time computation of elasticity - plastic mechanics, solving method of fuzzy finite element and other problems were studied in this paper. and some achievement was gained as following : ( 1 ) based on the positive definiteness of system stiffness matrix of finite element that was modified and the form of potential energy function of elastic body, the linear system of saturation mode ( lssm ) was introduced into the neural computation of finite element, by which the no - error solving of finite element neural net computation was realized in theory

    針對上述問題，在國家自然科學基金（高技術新概念新構思探索） 、教育部優秀青年教師資助計劃、高等學校全國100篇優秀博士學位論文作者專項基金等的資助下，本文對彈塑性力學問題的動靜態的實時計算、模糊有限元的求解方法等問題進行了系統和深入的研究，取得了以下成果： （ 1 ）根據有限元總剛矩陣經修正後具有正定性的特點以及彈性體勢能函數的具體形式，將飽和模式的線性系統（簡稱為lssm系統）引入到有限元的神經網路計算中，在理論上實現了有限元神經網路計算的無誤差求解。
  7. On the other hand, in the approach based on vector - matrix, through several special operations on vector - matrix, we have constructed a sparse ‘ 0 ’, ‘ 1 ’ parity - check matrix with dual diagonal matrix whose structure can easily construct the code. the simulation results have demonstrated the performance of this approach is similar to that of - rotation while the complexity is also higher. this problem is to be solved in the future research

    在基於矢量矩陣的結構化方法中，通過對矢量矩陣進行一系列特殊處理可以構造出稀疏的『 0 』 、 『 1 』校驗矩陣，而校驗矩陣中的雙對角結構易於構造出相應的ldpc碼字，模擬表明，採用矢量矩陣的結構化方法具有和-旋轉構造法相當的性能，但是實現的復雜度大於-旋轉構造法，同時碼率和碼長受到一定的限制，這也是未來需要研究的方向。
  8. On the basis of large - displacement virtual principle, the finite element equations of stable type suspension bridge containing towers are driven. the stiffness matrixes of the cable element, the bar element and the beam element using node coordinates are given, too. such method has not been found in reference books

    論文從有限位移彈性理論的虛功方程出發，推導出穩定橋全橋結構的非線性有限元運動方程，還推導了用節點坐標表示的索單元、桿單元和梁單元的單元剛度矩陣，這一點在參考文獻較少見。
  9. How could it develop so rapidly ? applying the knowledge of business administration and using boston matrix and swot methods, this thesis is fully analyzing the advantages, disadvantages, opportunities, risks, and the internal and external environment of dlcc, systematacially studying and proving the organizational structure, management style and development strategy, finally with the leading alien analysis methods, also points out the future development of dlcc

    本文通過所學的工商管理知識，運用波士頓矩陣分析、 swot分析等方法，對大連可口可樂飲料有限公司的優勢、劣勢、機會、威脅，企業內外部環境進行分析，對企業的組織結構、管理模式、發展戰略進行了系統的定性分析、科學研究、理論證明，並借鑒國外先進的分析方法，指明了企業今後的發展方向。
  10. Finite difference method can deal with regular boundary conditions. in this paper, we discrete the water domain into rectangular meshes, and simulate the propagation, reflection and diffraction of water waves. we just specify waves source, the movement of water waves can be simulated automatically

    有限差分方法能夠處理具有規則邊界水域的水流現象，在本文中，我們把求解的水域離散成結構矩形網格，對水流的折射、反射、繞射等水流現象進行了動畫模擬，我們僅僅指定產生水流動畫的波源，水流動畫的細節均由數值方法產生，不需要人工的干預。
  11. According to the theory of the finite element analysis, the matrix of mass, rigidity and damp in every part of shell structure have been fixed on ; at the same time, calculation has been done in dynamics and statics

    利用有限元理論，分別確定了復合殼體結構中各部件的質量矩陣、剛度矩陣及阻尼矩陣，並對其進行了靜力學與動力學計算，結果證明內襯三維波紋鋼板復合殼體結構與普通混凝土殼體結構相比，其結構承載力有了較大的提高。
  12. The main work and achievements are summarized as follows : based on herrmann variational principle and the nearly - incompressible viscoelastic constitutive relation, a new type of viscoelastic incremental finite element method is presented. in this method, incremental arithmetic is applied to solving the hereditary integrals. it needs less memory space, has simple parameter matrix, and calculates stiffness matrix only once

    主要研究內容如下：從herrmann變分原理出發，基於適用於近似不可壓縮材料的粘彈性本構關系，利用增量法處理遺傳積分，發展了一種粘彈性增量有限元方法，所需存儲空間較少，參數矩陣形式簡單，求解過程只需要形成一次剛度矩陣，適用於藥柱的結構計算，奠定了確定性分析基礎。
  13. The research of this connection under monotonic and cyclic loading is simulated using powerful finite element analysis software. the damage mechanism under the moment loading is studied and the hysteresis curve is obtained. at last, the hysteresis model and the parameter of the model is defined to provide academic and numerical foundation

    採用大型有限元通用軟體模擬該種連接在單調荷載和周期荷載作用下的試驗，研究了該連接在彎矩荷載作用下的破壞機理、做出了該連接的滯回曲線，並確定了滯回模型和模型參數，為研究半剛性連接鋼框架在地震荷載作用下的性能提供理論依據和實驗基礎。
  14. If applied experiential formula mechanically to calculate the dynamic moment of the tri - eccentric butterfly vavle, its errors for the results would be larger. the paper, by virtue of the postulate of flow with fixed constant, eddiless of ideal liquid, calculated laplace equation by finite difference method in rectangular coordinates, gained pressure distribution on the butterfly disc section, thereby figured out its dynamic moment under each opening angle and the method was feasible for calculating dynamic moment of symmetry or not, designed the program and described the curve of dynamic moment. finally, the paper infered their laws

    採用經驗公式來計算三偏心蝶閥的動水力矩，誤差比較大，本文根據三偏心蝶閥的結構特點，利用理想流體的定常、無旋流動的假定，用有限差分法在直角坐標系中求解拉普拉斯方程，得到蝶板截面上的壓力分佈，從而計算出蝶板在各個開度下的動水力矩，設計出了求解的程序，給出了程序運行的結果並進行了數據處理從而得到了動水力矩曲線，總結了它的變化規律。
  15. Finally, we point out that the above asymptotic properties of the program of sequential confidence intervals based on moment estimates are not restricted by the family of exponential distributions, while it requires finite moments with high order

    最後指出，由定理的證明可知，上述矩估計序貫置信程序的漸近性質不受指數型分佈族的限制，但要求一定的高階矩有限。
  16. Therefore, the common rectangular groove seals are often be changed into the curved groove with some arc degree. when the o - ring acted as sealing function is placed in the curve groove with suitable design, its stress, strain and friction are all improved so as to lengthen the service life of sealing. the finite element method has guide meaning to analyze and design of structure

    為此，普通矩形槽密封被嘗試著改為具有一定弧度的弧形槽，當徑向密封作用的o形圈被置於設計合理的弧形槽內，其受力、變形和摩擦狀況均得到改善，有助於密封壽命的提;銳有限元法對結構的分析和設計具有指導意義。
  17. Using the theory of matrices proves some theorems of linear cellular automata over a finite communitive ring. and futher properties of evolution of some typical linear cellular automata are given

    摘要在線性元胞自動機矩陣表示的基礎上證明有限交換環上的線性元胞自動機的一組定理，並藉此分析某些典型線性元胞自動機的演化性質。
  18. The characteristic value of the so - called inverse algebraic eigenvalue problem is that under certain restrict conditions against the question, elements of matrix are determined according to eigenvalue or eigenvector. the practical inverse alebraic eigenvalue problem arose in phisical chemistry in the study of molecular structures. it arises in various areas of application in a lot of filelds, such as dispersed system of physical mathematic, design of vibration system of the structure, correct and control, particle nuclear spectroscopy, linear variable control system and so on

    所謂代數特徵值反問題就是在一定的限制條件下，根據給定的特徵值或特徵向量決定矩陣的元素，它是在研究物理化學中研究分子結構時發現的。矩陣特徵值反問題在數學物理反問題的離散系統、結構振動系統的設計、校正與控制、粒子物理的核光譜學、線性多變量控制系統的極點配置等許多領域都具有重要的應用。
  19. In this paper, we brought forward the concept of ergodic matrix over finite field fq, simply discussed theory of finite field including property theory of finite field, calculation in finite field and construction from low - degree finite field to high - degree finite field

    本文引入了有限域上n階遍歷矩陣的概念，對遍歷矩陣進行了初步的探討，給出了遍歷矩陣的一些定理及構造遍歷矩陣的遞推關系式，討論了其難破解性。
分享友人
分享到 Line

分享到臉書