阻尼矩陣 的英文怎麼說

中文拼音 [zhèn]
阻尼矩陣 英文
damping matrix
  • : 動詞(阻擋; 阻礙) block; hinder; impede; obstruct
  • : 名詞(尼姑) buddhist nun
  • : 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
  • : Ⅰ名詞1 (作戰隊伍的行列或組合方式) battle array [formation]: 布陣 deploy the troops in battle fo...
  • 矩陣 : [數學] matrix; array
  1. On the basis of the hamilton ' s principle, the element mass matrix, stiffness matrix, and damping matrix caused by coriolis force of the finite method for the conveying fluid tubes were educed in the paper

    本文用哈密頓變分式推導輸送流體管道的有限元法分析單元質量、剛度和科里奧利力引起的阻尼矩陣
  2. 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 .研究了中心對稱結構動力模型修正問題,對給定的三重(質量、剛度阻尼矩陣) ,求滿足譜約束條件且具有中心對稱特性的「最接近」的三重,並給出數值算例。
  3. Through ( multi - level ) bordered block partition of the power system topology matrix, a bbdf coefficient matrix which is suitable for above decomposition is formed. when the equation is solved with parallel iterative method, convergence acceleration is achieved through damping newton method

    通過採用(多重)對角加邊的方法進行電力網路拓撲分割,以形成適合以上分解法求解的對角加邊形式的系數,并行求解后並對迭代過程進行牛頓法修正,以達到加速收斂的作用。
  4. Fist ly, use mass equivalent method to predigest the original rotor system. secondly, use transfer matrix arithmetic to have finished the relative program to calculate the critical speed of flexible multi - tray rotor bearing system by matlab language. thirdly. finish program the unbalance response using riccati - transfer matrix arithmetic and finity buck arithmetic. fourthly, answer to the high vibration of uncontroled system when cross the critical speed, come out to adopt changing clearance damper bearing to control the viberation

    本文對多柔盤轉子-支承系統的振動現象做了以下初步探索:用質量離散化方法把原轉子系統簡化;採用matlab語言編制了對傳遞法計算多柔盤轉子-支承系統的臨界轉速;用matlab語言對riccati傳遞法和有限元法編制了程序計算系統的不平衡響應;並針對其過臨界轉速時振動較大的現象,提出採用變間隙控制油膜剛度和,從而使原系統的在特定轉速(臨界轉速)的一段范圍內不平衡響應減小;並從被動控制與主動控制兩方面進行數值模擬,取的了較好的控制效果。
  5. A method to identify the damping parameters of machine joint surface is proposed based on the tested frequency response functions

    提出一種基於實測傳遞函數來識別機械結合面參數的新方法。
  6. The soft tissues are discreted to a mass - spring - damper system, and the topologies of the system are described using adjacent tables, the dynamical equations can be constructed based on the data stored in the adjacent tables. the 4th order runge - kutta method is used to integrate the equations of deformation. using computer graphical techniques to display the visual feedback of the deformation

    將連續的軟組織離散為由彈簧-器及與其連接的質點構成的離散系統,用鄰接表示離散系統的拓撲結構,即質點-彈簧間的鄰接關系,依據該信息,可自動計算與每個質點連接的彈簧、器對接點的粘彈性力的貢獻,然後採用4階runge - kutta方法對得到的微分方程組進行數值積分,用opengl技術對得到的模擬結果進行圖形繪制。
  7. We deduce easily the coherent term of quantum dynamical model ( the off - diagonal of reduced density matrix ) by improving the nature of displace operator and the nature of coherent states. then, the interaction is energies of a two - photon mechanism and the usual one - photon or liner driving mechanism. we deduce the coherent term by improving the nature of squeezing operators, displace operators and canonical transformation

    其一,僅有相互作用和勢能相互作用,此時利用位移算符的性質和相干態的性質很方便地推導了量子動力學模型的相干項(約化密度的非對角元) ;其二,考慮的是既有單光子相互作用又有雙光子相互作用,這時利用相干態、壓縮算符及正則變換等的性質推導出相干項。
  8. Earthquake and wind ), because of the damping matrixes of the two structures " motion equations are both non - classical, the dynamic equation ca n ' t be decoupled by the traditional real - mode analysis ( the mode - superposition method ). though, in this thesis the complex - mode analysis is used to solve the stationary and non - stationary random earthquake response of structures and their analytic expressions are got. on the basis of these expressions, the optimal parameters of the two structures " isolation & seismic decrease equipment are analyzed

    目前,基礎隔震結構、 「加層減震」 ( tmd減震)結構正逐步應用於工程實際,由於這兩種結構在動力荷載(如地震、風)作用下動力方程中的阻尼矩陣為非經典情形,傳統的實模態分析方法(振型分解法)不能使動力方程解耦,因此本文運用復模態分析方法求得了結構在平穩和非平穩隨機地震激勵下結構隨機地震響應的解析表達式,在此基礎上進行了基礎隔震和tmd減震裝置參數的優化分析。
  9. In time history analysis, the modification of damping matrix is presented. rayleigh damping model is adopted in main part and actual value is adopted in connected damping between main part and hanger

    在時程分析中,對阻尼矩陣的形成提出了改進方法,即主體部分按瑞利模式計算,懸掛與核筒之間的聯結按實際值輸入。
  10. As to the polyreference implemention of the least - squares complex frequency - domain estimator in mathematical separation technique of modes, this thesis builds a right matrix - fraction description model to estimate the system poles. then frequency point stabilization diagram is set up and analyzed to automatically determine natural frequencies, modal damping ratios and modal participation factors. finally mode shapes are identified based on the least squares theory

    對于模態數學分離技術的多參考點最小二乘復頻域識別技術,先建立右分式頻響模型,識別出系統極點,再通過建立和分析頻率點穩態圖,能自動的確定出結構的固有頻率、模態比和模態參與因子,最後根據最小二乘原理識別出模態振型向量。
  11. ( 6 ) the analysis on singularity configurations of the manipulator were investigated by the singular value decomposition of jacobian matrix, which was treated with the damped least - square method in the motion. from the results obtained it was indicated that the minimum singular value of manipulator calculated by the damping jacobian matrix were far from zero position. velocity, position and accelerate of all the joints of manipulator moved regularly, consequently the problem that the joint of mani

    ( 6 )通過雅可比奇異值分解進行番茄收獲機械手奇異性分析,並採用最小二乘法對機械手運動中的奇異位形進行處理,使番茄收獲機械手最小奇異值遠離零點,各關節運動速度、位置和加速度運動無異常波動,解決了機械手在奇異位形處某些關節運動無法控制的問題。
  12. In this paper, damped least - square method utilized to overcome kinematic singularity of robotic manipulators was improved, which achieved more accurate tracking compared to the traditional method. singular value decomposition ( svd ), to which was attached great importance in singularity - robust inverse kinematics and kinematic control of redundant manipulators, was investigated. also, an overwhelmingly utilized algorithm of svd was improved and some possible problems encountered in joint failure issues and redundant issues when using this algorithm was deeply discussed

    本文改進了解決機器人運動學奇異的最小二乘法,同傳統的最小二乘法相比具有更高的跟蹤精度;研究了在機器人奇異魯棒性逆運動學、機器人冗餘運動控制中佔有重要地位的奇異值分解,對一種應用廣泛的奇異值分解演算法做了改進,並對其在關節卡死和冗餘控制中可能遇到的問題做了較為深入的討論,系統地描述了一階運動學實現方案,為軌跡規劃打下了堅實的基礎。
  13. In chapter 3, the non - linear equation was linearized with the jacobi matrix, and then the linearized equation was transformed into fixed frame to analyze the stability problem with eigenvalue method ( on - ground or hovering ) or floquet theory ( forward flight ). meanwhile, the equation was perturbed by sweep frequency excitation from steady state to get transit decay of lag response which was then transformed into fixed frame with a numerical fourier coordination transformation ( fct ). the fixed frame response along with the body response was analyzed via an fft to determine modal frequencies

    然後,在穩態響應的基礎上利用雅各比對非線性方程進行了線化,線化后的方程利用多槳葉坐標變換轉換到固定系下后,利用直接特徵值分析(地面、懸停)或floquet理論(前飛)對系統進行了穩定性分析;同時,對系統進行了瞬態響應分析;在系統達到穩態的基礎上進行掃頻激勵,用fft變換求得系統頻率,進而用移動形窗方法分析得到系統的
  14. The main research work is summarized as follows : as the basis, the concept and process of eigenvalue analysis are discussed first. then according to the research of the state matrix, a concept that the system general damping coefficient keeps constant is proposed, which is helpful for understanding the interaction of all the dynamic components and impacts for the distribution of dampings

    論文在回顧特徵值分析方法基本概念、步驟的基礎上,通過對系統狀態的研究,提出了廣義系統守恆的概念,這便於理解系統中各動態元件的相互影響和對系統分配所起的作用。
  15. Then the vibration equations in the wheel / rail system dynamics are constituted again and the rigidity matrix, the damping matrix and the load matrix can be formed by different computer processor for the sake of increasing parallel computation efficiency

    隨后在公式級對輪軌系統動力學振動方程組的組建進行了優化,將組建剛度阻尼矩陣和荷載列模塊化。
  16. A damping matrix equivalent method and its application in a kind of vibration problems

    一類振動問題中阻尼矩陣的等效方法及應用
  17. ( 4 ) the modal information of beam before and after weighting is get through experiment. the damping matrix of the structure is also identified based upon the algorithm deduced in the paper

    ( 4 )對配重前後的彈性地基梁通過模態試驗獲取模態信息,並根據文中推出的識別阻尼矩陣的演算法對阻尼矩陣進行了識別。
  18. 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、剛度阻尼矩陣,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。
  19. Then, the hilbert transform is applied to each modal response to obtain the instantaneous amplitude and phase angle time histories. a linear least - square fit procedure is proposed to identify the natural frequency, damping ratios, physical mass, damping and stiffness matrices from instantaneous amplitude and phase angle for each modal response

    然後對各階模態響應進行hilbert變換,得到瞬態幅值和相位角的時間歷程,再運用線性最小均方擬合來識別自然頻率、比、質量、剛度和阻尼矩陣
  20. In this thesis, boundary characteristic matrices of spring - damper are obtained by using the minimum energy theory according to wave theory in elastic media

    本文根據彈性介質中的波動理論,運用最小勢能原理,推導出彈簧?器邊界特性
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