iterative procedure 中文意思是什麼
iterative procedure
解釋
遞次求近法-
A new numerical procedure for analyzing the coupled vibration of a framed arch bridge with a single moving vehicle is presented to solve the equations of motion of a bridge with many degrees of freedom. the procedure consists in dividing the bridge - vehicle systems, which are solved separately, into 2 subsystems at the interface of the bridge and vehicle. the compatibility at the interface is obtained by an iterative procedure with aitken acceleration
本文提出新的計算橋梁車激振動反應的方法，車?橋系統被分成兩個相互作用的子系統，這兩個子系統通過接觸點的協調條件耦合在一起，從而應用aiken動態加速法對橋梁運動方程、車輛運動方程和車?橋耦合方程進行高效迭代求解。 -
Abstract : the mechanical analysis for arch bridge with flat hinge joints is a mechanical problem with non - linear boundary. mechanical analysis of methods at present is not clear, which can not calculate the arch bridge with changeable section and section with complicate shape. in this paper, the new method used to get the section resistance coefficient k is presented, the iterative procedure is established to calculate the internal forces of arch bridge with flat hinge joints, and the computational example is given. the method can apply to the arch bridge with any numbers of flat hinge joints and any shape section
文摘:平鉸拱橋結構的受力分析屬于邊界非線性力學問題，目前的一些方法受力分析不太明確，對變截面、復雜形狀截面等平鉸拱橋無法進行計算.針對這種情況，提出了確定平鉸截面抗力系數k的新方法，建立了計算平鉸拱橋內力的迭代演算法，並進行了實例計算，研究結果表明，這一方法對具有任意個平鉸、任意形狀截面的拱橋結構是適用的 -
S. consideration of interaction on the nonlinearity about the material, the geometry, and the boundary of the columns subject to axial force. biaxial hending, and torsion, an analytical model of hysteretic curve of columns is presented, based on the sectional cross - sectional discrete yieldsurface inodel, the bond slip in anchorage zones regarded as the boundary nonlinearity of a memher. and the iterative procedure of displacement of inner nodes on the basis of the hamonization of displacement
5 、根據構件分段截面離散的屈服面模型法，把錨固區粘結滑移看成構件的邊界非線，以及基於位移協調的內結點位移迭代法，建立了能考慮構件壓（拉） 、雙彎、扭的材料、邊界、幾何非線性相互影響的柱空間滯回曲線分析模型。 -
Convergent iterative procedure
收斂疊代程序 -
In this method the stress resultants of concrete in the cross section are evaluated by accurate integrating method and the resultants of structural steel and reinforcing bars are obtained using the fiber element method. the final nonlinear algebraic equations are solved using an iterative quasi - newton procedure based on the regula - falsi numerical scheme
應用該計算機方法，截面上的混凝土內力採用精確的積分方法求得，結構鋼與鋼筋的內力則由纖維元方法計算，而最終的非線性代數方程組由分離變量的擬newton - raphson迭代方法求解。 -
Abstract : based on the iterative bit - filling procedure, a computationally efficient bit and power allocation algorithm is presented. the algorithm improves the conventional bit - filling algorithms by maintaining only a subset of subcarriers for computation in each iteration, which reduces the complexity without any performance degradation. moreover, a modified algorithm with even lower complexity is developed, and equal power allocation is introduced as an initial allocation to accelerate its convergence. simulation results show that the modified algorithm achieves a considerable complexity reduction while causing only a minor drop in performance
文摘:基於迭代的比特和功率分配機制，提出了一種低復雜度的比特和功率分配演算法.與傳統的迭代分配演算法不同，該演算法在每次迭代中只需要比較幾個特定的子載波.該方法在保持傳統迭代演算法性能的前提下極大地減小了迭代分配演算法的復雜度.此外，通過選擇等功率分配方案作為初始方案加快了演算法的收斂速度，進一步降低了演算法復雜度.模擬結果表明，提出的改進演算法在基本不犧牲系統性能的前提下有效地降低了演算法復雜度 -
A new image quality assessment criterion is suggested on the basis of the statistical features of the gray - level histogram of images to control the iterative procedure of the proposed image enhancement algorithm
同時為了結束迭代增強，基於圖像灰度直方圖分佈的統計特性，提出了一種客觀的圖像質量評價指標。 -
To improve the efficiency of solution, the solution method to determine the cavitation range of blade is carried out for each chordwise string, the interaction between strings is included by spanwise iterative procedure
為了提高求解效率，本文在確定螺旋槳槳葉上空泡范圍時採用的求解方法是針對每一個弦向「條帶」進行的， 「條帶」之間的相互影響通過沿槳葉展向的迭代考慮。 -
Secondly, the method applies a linear iterative procedure in calculation and the svd is used as a main tool, avoiding complex nonlinear optimization processes
實現過程是以奇異值分解為基本工具的分步線性迭代計算，避免了傳統射影重建方法復雜的非線性優化環節。 -
To deal with the problems mentioned above, a generalized iterative fuzzy enhancement algorithm is proposed in this thesis that consists of a three - stage procedure, i. e., image filtering, fuzzy enhancement and gray - level transformation
為了解決上述問題，本文在經典模糊增強方法和灰度變換基礎上提出了一種廣義的迭代模糊增強演算法。 -
In this thesis, an incremental - iterative solution procedure using the modified newton - raphson iteration is used to solve geometrically nonlinear problems
在涉及幾何非線性問題的數值方法中，通常都採用增量和迭代分析的方法。 -
In this paper, considering the additional bending moments of the axial load about the lateral displacements ( i. e. the second - order effect ), an iterative computer analysis procedure is proposed to predict the load - deformation relations and ultimate loads of steel - concrete composite columns of arbitrary cross section
本文考慮長柱在軸向荷載作用下的附加彎矩影響（二階效應） ，提出了一種適用於任意截面形式鋼-砼組合長柱的荷載-變形關系分析和極限承載力分析的數值迭代計算機方法。 -
Approximation fixed points of strictly pseudocontractive mappings by ishikawa iterative procedure
迭代程序逼近嚴格偽壓縮映射的不動點 -
The surface panel method has been applied to predict the hydrodynamic performance of highly skewed propeller. the surface of propeller and its trailing vortex are discreted by a number of small hyperboloidal quadrilateral panels with constant source and doublet distribution. for highly skewed propeller, the conventional method generating grid oriented along constant radii will result in a high aspect ratio and a high skewness and a twist panel near the propeller tip on blade surface, which result easily in incorrect calculation results of velovity on blade surface, even in iteration divergence and calculation failure. a “ non - conventional grid ” is developed to acoid these problems. this grid can effectively solve the problem of the calculation and convergence for highly skewed propeller. the non - linear kutta condition of equal pressure on upper and lower at the trailing edge is executed by the iterative procedure. by sample calculating, the obtained results are satisfied the experimental data
採用面元法預報大側斜螺旋槳水動力性能，螺旋槳表面及尾渦面離散為四邊形雙曲面元，每個面元上布置等強度源匯和偶極子分佈.對于大側斜螺旋槳而言，槳葉表面採用常規的等半徑網格劃分方法在近葉梢處將導致大展弦比、大側斜和扭曲面元，這容易使槳葉表面速度的計算結果不正確，甚至會導致迭代過程發散及計算失敗.文中建立了一種「非常規網格」劃分方法，能有效地解決大側斜螺旋槳的計算和收斂問題.槳葉隨邊處通過迭代實現非線性等壓庫塔條件 -
The computer program has following advantage : the solution of main blade is by iterative scheme in time domain, the kutta condition is used by explicit equal pressure condition, the jacobian matrix which can reflect the influence on the difference between the upper and lower surface at trailing edge by dipole is calculated in each iterative procedure, in order to improve the convergence of iteration
本文編制的螺旋槳非定常性能預報程序是針對主葉在時域中迭代求解的， kutta條件採用的是顯式的等壓條件，求解中為了提高迭代的收斂性，在每次迭代中都重新計算反映偶極子強度對尾緣處上下表面壓力差影響的jacobi矩陣。 -
The accuracy of reliability calculation was improved in the derivative sfem method. the local derivatives of fem and numerical method were used to obtain the iterative formulas of the performance function ' s local derivatives. the procedure is relatively simple and adaptable to engineering application as the stiffness matrix formed and decomposed only once
偏導sfem可靠度法求解構件疲勞可靠度，可靠度計算精度得到改善，通過有限元求偏導，結合數值微分技術，推導出了功能函數的偏導迭代格式，只需一次形成和分解總綱，計算較簡便，適合工程應用。 -
This paper analyzed the relationship between the model space, initial models, local minimization solutions, global minimization solution etc. in the geophysical inverse problem and the state space, particle state, stationary state, excited states, ground state etc. in the atomic transition based on the similarity of the procedure of iterative optimization for geophysical inverse problem and those for atomic transition
摘要詳細研究了一般地球物理反問題的迭代優化求解過程與物理學中原子躍遷過程的對應關系，建立了反演問題中模型空間、初始模型、局部極值模型、最優化模型等與原子的態空間、定態、激發態、基態等的對應關系。 -
By an iterative procedure, this method is able to recover the continuous phase distribution of all steps with same height. 2. it introduces a fast iterative pairwise registration method
本文首次提出了一種只需要一次測量即可完成高度和橫向坐標校準的方法，該方法在保證精度的同時提高了校準過程的自動化程度。 -
Abstract : based on forward method, this paper recommends a new technique for 2. 5 dimensional resistivity imagery, which can help to save calculation time. the imaging iterative procedure is quite stable, and can hence complete imaging for extensively existent media of high electric contrast degree, thus raising the practicability of the resistivity tomographic imaging technology
文摘:以作者提出的正演方法為基礎，給出一種新的2 . 5維電阻率成像方法，節省了計算時間，使成像迭代過程很穩定，可以對實際上廣泛存在的大電性對比度的介質成像，從而提高了電阻率層析成像技術的實用性。 -
Based the geometric and mechanical coupling relation between vehicle and bridge, movement equation of wind - vehicle - bridge system is established. the equation can be solved by a separated iterative procedure which can considers various nonlinear factors
在分析車?橋系統的幾何耦合關系和力學耦合關系的基礎上，建立了風?車?橋系統運動方程，通過分離平衡迭代方法進行求解，並考慮非線性因素的影響。
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