線彈性動力學 的英文怎麼說

中文拼音 [xiàndànxìngdònglìxué]
線彈性動力學 英文
linear elastic fracture mechanics
  • 線 : 名詞1 （用絲、棉、金屬等製成的細長的東西） thread; string; wire 2 [數學] （一個點任意移動所構成的...
  • 彈 : 彈名詞1. （彈子; 小球形的東西） ball; pellet 2. （內裝爆炸物, 具有破壞和殺傷能力的東西） bullet; bomb
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  • 力 : Ⅰ名1 （力量; 能力） power; strength; ability; capacity 2 [物理學] （改變物體運動狀態的作用） forc...
  • 學 : Ⅰ動詞1 （學習） study; learn 2 （模仿） imitate; mimic Ⅱ名詞1 （學問） learning; knowledge 2 （學...
  1. The scielltific computational theories and methods on bird strike to the windshield of aircraft have been systematically studied and summed up in this thesis, such as fem comptltational principles and procedures to elastic dynamic problems under the conditions of small and non - linear finite deformation, 3d viscous elastic constitutive theory and incremelltal expression under the consideration of the rate effect of non - metallic materials like the aircraft windshield, and the numerical compatational principles and key constitutions for impact - contact dynamic subjects

    2 、系統學習並歸納總結了鳥體撞擊風擋結構問題中的科學計算理論與計算方法。按照鳥撞問題數值計算方法逐步深入的思路，系統總結了小變形結構動力學有限元數值計算方法、有限變形的幾何非線性有限元數值計算方法、粘彈性體非線性形變的本構物理關系；對于實施復雜結構有限元動力學計算的載荷增量方法提出了對newmark差分的改進以及進行材料與幾何非線性數值計算的細致步驟。
  2. Across the rigid - flexible coupling dynamic analysis, we acquired the coupled effects between the three - dimensional attitude motion of the satellite and the flexible vibration of the antenna ' s supporting beam, and got the dynamic behaviors of the system. and we found the change pattern of the antenna ' s structure parameters, which decide the system ' s connatural characteristic and its dynamic response

    通過對衛星?天線形成的剛柔耦合系統進行動力學分析，獲得了衛星的剛體運動與天線的彈性振動之間的耦合影響規律及其真實的動力學行為，得到了天線結構參數對衛星?天線系統的固有特性及其動力學響應的影響規律，為衛星姿態控制和天線結構優化設計奠定了基礎。
  3. This text expanded the magnetoelastic stability issue of current - carrying component from coil, pole piece to thin current - carrying plates, and used special function to differentiate the critical state of losing magnetoelastic steady, the number value of getting the relevant parameter is solved. the text derives and provides the magnetoelastic movement equation of thin current - carrying plates, the geometry equations and the physics equations, the expression formula of lorent ’ s force, electro dynamics equation through the theory at first

    本文將載流構件磁彈性穩定問題由線圈、桿件拓展到載流薄板，並引入特殊函數判別磁彈性穩定問題的失穩臨界狀態，得到了相關參量的數值關系。首先通過理論推導給出了載流薄板的磁彈性動力學方程，幾何與物理方程，洛侖茲力的表達式，電動力學方程。
  4. Non - linear dynamics characters of a rotor system for an elastic shaft - disk with a crack are examined by introducing the geometric non - linearity and equivalent line - spring model

    本文引入了幾何非線性關系和等效線彈簧模型對含裂紋的彈性軸彈性盤轉子系統進行非線性動力學分析。
  5. On conservation laws in geometrically nonlinear elasto - dynamic field of non - homogenous materials

    論非均勻材料幾何非線性彈性動力學場的守恆律
  6. These studies, in fact, have motivated parallel investigations in nonlinear elasto-dynamics.

    事實上，這些研究曾經啟發了非線性彈性動力學中的平行研討。
  7. This is the second bifurcation of the rotor, leading to low frequency movement at about 1 / 6 rotary speed. ( 3 ) in the third part of the paper, we focus on how to establish a rotor model with multi. span and multi. disk including main linear and nonlinear stimulations on the rotors system. the rules for establishing this kind of rotors model are put forward at the beginning of this part

    （ 3 ）提出了轉子大系統的理論建模準則，考慮非線性油膜力、聯軸節剛度及標高等因素的影響，建立了一個16dof兩跨四盤四支撐不平衡彈性轉子模型，並提出了大型汽輪發電機組全軸系的48dof理論模型，建立了考慮陀螺效應時的復數形式的非線性動力學模型。
  8. Abstract : the nonlinear finite element dynamic simulation model for an oscillation mechanism with 4 - eccentric axis for continuous casting machine is established by means of the theory of kineto - elastodynamics

    文摘:根據運動彈性動力學的理論方法，建立了連鑄機四偏心式振動機構非線性有限元動力學模擬模型。
  9. This paper attempts to study the non - linear dynamics of cables

    本文對彈性斜拉索的非線性動力學進行了研究。
  10. Linear elastic dynamic fracture mechanics are adopted to analyze the working characters of the semi - rigid asphalt pavement with the reflective cracking. it is successful to simulate the crack expansion process based on elastic damage theory, at the same time the fatigue life is forecast. the research findings are valuable for the pavement engineering practice on the soft clay ground

    本文分析路表變溫對軟土地基上半剛性路面結構體的作用時，考慮了路表降溫導致瀝青混凝土回彈模量的非均勻性，採用線彈性動斷裂力學分析軟土地基上含反射裂縫半剛性路面結構體的工作性狀。
  11. In the paper, static and dynamic triaxial tests were conducted on fiy ash at shanmenxia longgou ash dam, and the static and dynamic parameters of fly ash were obtained. thirdly the 2 dimensions static analysis of the ash dam was conducted based on biot ' s consolidation theory and duncan ' s nonlinear stress - strain model. finally the plane dynamic behaviors of the ash dam during earthquake of intensity 7 were analyzed based on the exponent function model of excess pore water pressure aroused by earthquake, which is put forward in the paper, and equivalent visco - elastic dynamic fem model and principle of effective stress

    本文結合實際工程，對三門峽火電廠龍溝灰壩的築壩粉煤灰進行了靜、動三軸試驗，確定了該壩粉煤灰的靜動力學指標；然後根據比奧（ biot ）固結有效應力原理，採用鄧肯（ duncan ）非線性應力應變模型，對該灰壩的二維靜力應力和變形狀態進行了分析；最後利用本文提出的地震超靜孔壓指數函數模型，採用等價粘彈性動力有限元方法，對該灰壩在地震作用下的動力穩定性進行了分析評述。
  12. In the paper, active control to rotor vibration with sma is studied : 1 ) the material performance of sma, especially the coupled relation of strain, stress and temperature, is studied in nonlinear coupled thermoelasticity theory and the linear result is modified ; 2 ) the nonlinear dynamic behavior of rotor system with sma bearing is studied in the nonlinear theory and the dynamic stability theory and the deference of the soft / hard nonlinear system is pointed out

    1 ）運用非線性熱彈性耦合理論研究記憶合金材料的力學性能，特別是應力、應變和溫度三者之間的耦合關系，改進了原有的線性結果。 2 ）運用非線性理論和運動穩定性理論研究帶有記憶合金支承的轉子系統在非定常狀態的非線性動力學行為，指出了軟、硬非線性系統的區別。
  13. The way to eliminate chaos phenomenon through adjusting system parameters is indicated. the nonlinear dynamic behavior of journal bearing - rotor system in large parameter space is studied in numerical integral method and floquet theory and the first and second bifurcation behavior of nonlinear rotor system are discussed ; the concept is advanced that realizing the controllable nonlinear stiffness with sfd with the soft - nonlinear of sma in the super - elasticity state to make the vibration amplitude of system always be in the small solution state to reduce the vibration amplitude of rotor system

    運用數值積分方法結合floquet理論對滑動軸承-轉子系統的大參數范圍非線性動力學特性進行了全面的研究，詳細地討論了系統的一次和二次分岔行為； 5 ）提出了用形狀記憶合金在超彈性狀態下的軟非線性，結合擠壓油膜阻尼器實現系統剛性的非線性可控，降低系統在非定常狀態下的最大振幅的構想。
  14. The simplified prepressing - contact spring - damping system was studied in this dissertation. the nonlinear dynamic characteristic of this system was research by experiment method

    本文以簡化的預緊接觸式彈簧阻尼系統為研究對象，著重於用試驗方法來研究系統在動態載荷作用下的非線性動力學特性。
  15. This paper, from the angle of elastodynamics, studied the dynamic performance of the belt conveyor system by the action of transient load at acceleration and deceleration and prohided the proper acceleration and deceleration curves of the beh conveyor, which can be used in the engineering design

    從彈性動力學角度出發，研究了帶式輸送機在不同的加、減速度沖擊作用下和系統的動態特性，並提出合理的帶式輸送機的加、減速度曲線，可供工程設計採用。
  16. ( 4 ) with the help of the experimental samples, a drnn identifier is trained off - line utilizing the compound identification method. the nonlinear dynamic model is achieved for the experimental mechanism

    4 .在系統辨識方面，本文以實驗輸入輸出數據作為訓練樣本，採用復合辨識方法離線設計了動態遞歸神經網路辨識器，獲得了彈性連桿機構的非線性動力學模型。
  17. Seeing that structure characteristic of damage in the wind hazard, non - linear dynamics analysis was carried on, and has proposed the standard of damaging assessment

    鑒于結構風災損傷的特點，進行了非線性（包括大變形和彈塑性）動力學分析，並提出了損傷評估標準。
  18. The internal damping forces and the nonlinear elastic forces in the analytical form are deduced from the kelvin. voigt viscoelastic model. a smart method basing on the concept of period number is proposed for evaluating periodic solutions of the nonlinear system and determining the periodic. doubling bifurcation points

    （ 2 ）建立了一個4dof單跨彈性轉子在非線性油膜力、非線性內阻力和非線性彈性力作用下的非線性動力學模型，提出了求周期解的數值計算方法，以及計算周期解周期數及分岔點的演算法。
  19. At the same time, the model of ball - flexible body impact system was built using hertz contact theory, its equation was nonlinear integral equation

    同時利用hertz接觸定律建立了球?彈性體撞擊模型，其方程為含積分項的非線性動力學方程。
  20. First, being based upon kalman filter, extended kalman filter formulas was established ; second, with using extended kalman filter in non - linear dynamics system maximum likelihood identification method, the self - contained formulas of estimating parameter was established ; third, according to the air layout of the missle, the aerodynamic parameters identification calculating model was gained, with applying to the non - linear dynamics system maximum likelihood identification method ; finally, with using the calculating model, the aerodynamic parameters were gained. the results which were gained from the calulating model were almost consistent with which were gained from the wind tunnel experiment. thus, it was viable to use the method to estimate the aerodynamic parameters

    首先，以卡爾曼濾波為基礎，將其推廣于非線性動力學系統，建立了廣義卡爾曼濾波算式；其次，把廣義卡爾曼濾波算式應用於非線性動力學系統最大似然演算法和非線性動力學系統最大似然遞推演算法中，建立了各自的參數估計完備算式；再其次，以所建立的傾斜穩定導彈空間運動數學模型為基礎，根據該導彈的氣動布局，推導並建立了該導彈空間運動數學模型，將最大似然遞推演算法應用其中，建立了導彈氣動力參數辨識的數學模型；最後，利用該模型，估算出了氣動力參數，所得結果與風洞實驗數據基本吻合，從而認為採用此方法是可行的。
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