鬆弛模數 的英文怎麼說

中文拼音 [sōngchímóshǔ]
鬆弛模數 英文
relaxation modulus
  • 弛 : 動詞1. [書面語] （松開; 鬆懈） relax; loosen; slacken 2. （解除; 免除） fall off; fall out of use
  • 模 : 模名詞1. （模子） mould; pattern; matrix 2. （姓氏） a surname
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 鬆弛 : 1. （松; 不緊張） limp; flabby; slack; loose 2. （執行得不嚴格） lax
  • 模數 : [物理學] modulus; module; modulo; mod
  1. So we say that we can absolutely avoid unnecessary and bothering process in mathematic deducibility if making full use of the method of pseudo - spectral in more complex viscoelastic media, we can get wave equation when directly replacing with two kinds of relaxation modules

    由此可以說，如果採用偽譜法模擬其它更復雜的粘彈介質模型時，完全可以避免不必要的而且煩雜的數學推導過程；直接將體積鬆弛模量和剪切鬆弛模量代入即可得其波動方程。
  2. Theory research based on overrelaxation : according to electromagnetic theory fundamental equation, boundary condition is analyzed, iterative formula is deduced, overrelaxation factor is selected and calculation program is composed. through calculation on varied parameter, a group of suitable parameter is found out. in the third chapter : the conclusion of theory research is verified through experiment

    理論研究使用超鬆弛迭代法：根據麥克斯韋電磁理論基本方程，建立了磁場浙江大學博士學位論文：行程傳感液壓缸基礎技術的研究分析數學模型，分析了邊界條件，推導了迭代公式，確定了鬆弛因子，編制了運算程序，通過對不同參數的試算，找到了一組有規律參數之間的關系。
  3. Specifically, according to the w - w five parameters failure theory, the fracture criterion of crack is established, and the state of crack ( open or close ) is judged by the values of the crack strain. combining the two points, the predict - model about the failure of concrete material is established. this predict - model can predict 16 failure forms, and basing the different failure form predicted after crack, the stress - strain relationship matrix of concrete material is adjusted

    具體來講，根據w - w的五參數混凝土破壞理論，建立混凝土的開裂準則，根據開裂應變值來判斷裂縫是張開還是閉合，從而在兩者基礎上建立了裂縫的開裂預測模式，總共有16種開裂模式；裂后根據具體的開裂模式及殘余抗剪能力來調整混凝土的本構關系矩陣，即用等效剛度代替原有剛度，考慮到垂直於裂縫方向的剛度為零，這樣會使裂后的總剛出現病態，為此文中通過引用鬆弛系數來對出現裂縫的單元進行預處理，一方面可解決因過大的舍入誤差導致計算結果的不可信問題，另一方面就是可加速收斂。
  4. Abstract : in this paper, we propose an improved lagrangian relaxation algorithm to solve job - shop scheduling problems. besides the addition of augmented objective, we expand the search scope of near - optimal solutions and improve the computational efficiency greatly by restricting the solution scope of sub - problems and modifying the search method of dual problem. at the same time, we develop a genetic algorithm combining with the lr ( lagrangian relaxation ) method. using the numerous useful solutions we get in the lagrangian relaxation as the original genes, we can improve the solution further. test results show that these methods achieve satisfied outcome for job - shop problems. they can also be applyed to other programming problems with constraints

    文摘:針對車間調度問題，提出了一種改進的拉氏鬆弛演算法.在增加輔助目標函數的基礎上，通過對子問題的限制和搜索策略的改變，使拉氏演算法的計算量減少，近優解的搜索能力有很大改善.本文還提出了一種基因優化演算法，充分利用拉氏演算法得到的多個近優解，進一步優化結果.模擬結果表明對車間調度問題得到了較好的結果.本方法也可用於其它有約束的規劃問題
  5. At the same time, the mathematical models of the electric field and the flow field distribution were established from the theory of electrostatic enhancement of heat transfer. employed finite differential method and over - relaxation iteration method, according to certain boundary conditions in the wire - plate electrode space, the electric field and the flow field in the wire - plate space were numerically simulated under different initial velocities of r11 stream and different magnitudes of applied voltage. the calculation results agreed with theoretical analysis satisfactorily

    同時從靜電強化換熱理論出發，建立了表徵線板電極間的電場和流場分佈的數學模型，並根據線-板電極間的邊界條件，利用有限差分法和超鬆弛迭代法，分別就不同氣流初速度和不同外施電壓的情況下，對線-板空間的電場和流場進行了數值模擬，計算結果與理論分析基本一致。
  6. The direct numerical simulation methods for turbulent spots in the channel, open - channel and boundary layer flows are built respectively. effective algorithms composed of time - advancing, over - relax iteration and multiple grid methods are planned to raise computational efficiency

    分別建立了適用於在槽道、明渠和平板邊界層流動中直接模擬湍斑的數值方法，並精心設計了時間推進、超鬆弛迭代和多重網格等高效演算法，以提高計算效率。
  7. To obtain the parameters of measuring magnetic circuit structure, theory research is done. theory research based on overrelaxation : according to electromagnetic theory fundamental equation, boundary condition is analyzed, iterative formula is deduced, overrelaxation factor is selected and calculation program is composed

    並根據麥克斯韋電磁場基本理論建立了磁路結構模型，使用超鬆弛迭代法對測量磁路結構的磁場進行了理論分析，得到了適于用在行程傳感液壓缸行程測量的磁路參數之間的關系。
  8. Tensile relaxation modulus

    拉伸鬆弛模數
  9. A strength relaxation of semidefinite programming for standard quadratic optimization problems is given. the relaxation is transformed to a semi - indefinite programming. a linear programming cutting plane algorithm is proposed

    3 .給出標準二次優化問題的一個強化半定規劃鬆弛模型，把該模型轉化為半不定的線性規劃問題，並提出線性規劃的一種新的割平面演算法解該問題，理論和數值實驗證明了演算法的有效性
  10. Numerical stability, the other issue of the lattice boltzmann method, is discussed in chapter 5. corresponding to the uniform and shear background flow, the stability of d2q7 d2q9 and d3ql5 model is analyzed through the von neumann linear stability theory, both the conclusion about the mass distribution parameters, the wave number, the relaxation time and the uniform velocity, and the linear stability criterion n r0. 58 are instructive to numerical simulation of flow

    第五章考慮了數值方法另外一個方面的問題，在均勻流和剪切流兩種背景流場下，運用vonneumann線性分析法，針對d2q7 、 d2q9及d3q15格子模型，分析了質量分佈參數、波數、鬆弛時間和平均流速等決定模型穩定性的主要參數對模型穩定性的影響，得到了對流場數值計算具有指導意義的一般性結論與線性穩定性標準n r _ e ~ （ 0 . 58 ） 。
  11. The finite element balance equation is obtained with galerkin weighted residual procedure, and in turn, the creep and stress relaxation behaviors of articular cartilage under confined compression are numerically simulated using the designed finite element program

    具體採用伽遼金加權殘值法得到有限元平衡方程，編制了有限元程序，進而對關節軟骨圍限壓縮蠕變和應力鬆弛行為進行了數值模擬。
  12. Second, a finite element program with four nodes - rectangle element is coded. a one - dimensional problem is analyzed with this program, and in turn, the creep and stress relaxation behaviors of articular cartilage under confined compression are numerically simulated

    其次，編制了四結點四邊形單元有限元程序，分析了一維多孔柱體算例，並進而對關節軟骨圍限壓縮的蠕變和應力鬆弛行為進行了數值模擬。
  13. According to the double - axis experiment and the uniaxial tension experiment, shear relaxation modulus and bulk relaxation modulus are obtained. fractional exponent models [ 23 ] [ 24 ] [ 25 ] are applied to shear relaxation modulus and bulk relaxation modulus. the theory is proved by constant amplitude cyclic strain experiment

    通過雙軸拉壓實驗來確定材料的切變鬆弛模量，單軸拉伸實驗來確定材料的體變鬆弛模量，對這兩種模量均採用分數階指數的形式來進行擬合，再用等應變幅循環歷史的實驗驗證了理論，得到了較好的結果。
  14. A homogenization - based method for predicting the viscoelastic property of multi - layered composite material is presented. by laplace transforming the governing equation of the viscoellastic problem of jointed rock, the dependent relation of the laplace transformation of the effective relaxation modulus of jointed rock on the joint distribution was derived by applying the homogenization method in laplace transformed domain. then, the effective relaxation modulus was obtained from the inverse transformation

    首先對層狀復合材料粘彈性問題的控制方程進行laplace變換，在像空間中利用均勻化理論建立宏觀鬆弛模量的laplace變化與各層形式的依賴關系解析表達式，通過laplace逆變換可獲得等效鬆弛模量預測的解析表達式，並給出了體積變形為彈性、剪切變形符合三元件模型的單向節理巖石的粘彈性鬆弛模量預測的數值算例。
  15. This thesis gives a model language and a moderately complete formal description which can be used to prove the properties of static and dynamic data dependencies, and defines the notions in the iterative relaxation method formally. the program theories about the iterative relaxation method and its improvement are investigated, whose results include : the generalization of the predicate slices proposed by neelam gupta et al to path - wise static slices, and the proofs of the soundness of the construction algorithm of path - wise static slices and the soundness of the improvement

    本文給出一種模型語言；給出一個比較完整的形式化描述，該描述可用於證明與靜態、動態數據依賴關系有關的程序性質；給出迭代鬆弛法中各概念的形式化定義；深入研究迭代鬆弛法及其改進后的方法的程序理論，其結果包括：將neelamgupta等人提出的謂詞片推廣為路徑靜態切片，證明路徑靜態切片構造演算法的正確性，證明改進后的方法與原方法所生成的線性約束系統相同。
  16. Then, the numerical simulation experiments with satellite assimilation are launched on three typhoons in 2002 using the 2dvar data assimilation system. the comparison analysis with other data assimilation methods, such as nudging, is also going on the simulation results to typhoon track influence

    使用該二維變分同化系統，對2002年發生的三個臺風進行了同化衛星數據的數值模擬實驗，並對模擬結果同三維觀測鬆弛逼近等數據同化方法對臺風路徑影響做了比較分析。
  17. By laplace transforming the governing equation of the problem of unidirectional fiber reinforced composite materials, the formulae for predicting the viscoelastic relaxation moduli in laplace transformed domain are obtained. according to correspondence principle of viscoellastic mechanics and elastic, mechanics, the results of effective moduli for several s are obtained by using the finite element method of the homogenization. then effective relaxation moduli should be curve - fitted, according to the viscoelastic relaxation modulus formulae of many viscoelastic materials

    首先對單向纖維增強復合材料粘彈性問題的控制方程進行laplace變換，在像空間s中利用均勻化理論建立宏觀鬆弛模量的laplace變換泛函形式，根據粘彈性-彈性對應原理，用均勻化問題的有限元方法預報單向纖維增強復合材料在相空間中多個離散點的本構關系，然後根據典型粘彈性材料的鬆弛模量具有的函數形式進行曲線擬合，再通過對擬合出的函數進行laplace逆變換，從而再回到時間t域，就得到了單向纖維增強復合材料的鬆弛模量。
  18. An equivalent integral programming model and a new semidefinite programming relaxation for the max - bisection problem are given. then, we solve the relaxation with a projected gradient algorithm. coupled with the randomized method, an approximate solution of the max - bisection problem is obtained

    2 .給出圖的最大二等分問題的整數規劃模型的等價模型及其新的半定規劃鬆弛模型，利用投影梯度演算法求解該半定規劃鬆弛模型，然後利用隨機擾動演算法求得原問題的次優解
  19. Numerical example was presented. on base of those, effective relaxation moduli could be curve - fitted by the function form of the three - parameter solid model

    在此基礎上，用類似粘彈性三元件固體模型的形式去擬合離散的數值結果，得到了鬆弛模量更簡單的解析表達式。
  20. That makes the prediction of viscoelastic relaxation moduli easy. the numerical example was presented in the end of this paper

    給出的單向纖維復合材料的粘彈性鬆弛模量預測的數值算例驗證了該方法的有效性。
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