近似解析 的英文怎麼說

中文拼音 [jìnsìjiěxī]
近似解析 英文
a roximate analysis
  • 近 : Ⅰ形容詞1 （空間或時間距離短） near; close 2 （接近） approaching; approximately; close to 3 （親...
  • 解 : 解動詞（解送） send under guard
  • 析 : Ⅰ動詞1. （分開; 散開） divide; separate 2. （分析） analyse; dissect; resolve Ⅱ名詞（姓氏） a surname
  • 近似 : approximate; similar; approach; approximation; roughness; propinquity
  • 解析 : analysis; resolution; analyzing; resolving解析幾何 [數學] analytic geometry; cartesian geometry; ...
  1. There are two approaches generally used to arrive at these approximations.

    通常有兩種方法用於獲得近似解析式。
  2. The approximation analysis result of band dipole model is obtained on the basis of the theory of mfl. the electromagnetic distribution feature of the defect in the steel panel is studied by means of simulation. the leakage magnetic distribution of the two defects and four defects plural and the defects in the column differently in the width are also assayed. conclusions that factors affecting flaw magnetic leakage to the panel also affect the column and magnetic leakage bx should be the feature of the flaw identification to several flaws are drawn

    在對漏磁檢測原理進行詳細介紹的基礎上，得出了帶偶極子模型的近似解析解，並以有限元數值模擬分析為主要手段，以鋼板上缺陷為對象，分析了各因素對缺陷漏磁場產生影響的不同規律，同時模擬分析了板上平行的兩條裂紋，四條裂紋以及柱體上寬度不同時的裂紋的漏磁場分佈特徵，得出結論:影響板上缺陷漏磁場的諸因素會對柱體上缺陷漏磁場產生同樣的影響;對于多條裂紋，宜用漏磁分量bx作為缺陷識別的特徵量。
  3. In the model the film thickness in the passage was obtained at first using two phase flow theory ; then, similar analysis solution of concentration distribution of the pollutant in liquid phase and biofilm was obtained through mass component equation of pollutant in gas - liquid phases combined with the biochemical kinetic equation of mass transfer in biofilm and dismission of oxygen limited ; at last, the distribution of pollutant along the filter height and the waste gas purification efficiency were obtained

    該模型首先運用兩相流理論獲得了通道內液膜厚度，然後通過污染物在氣相、液相的質量組分方程，結合生物膜內的傳質與不?慮氧限制的生化反應動力學方程，獲得了污染物在液相和生物膜中濃度分佈的近似分析解，最終得到污染物在氣相中沿塔高的濃度分佈及廢氣凈化效率。
  4. The optimum designs of a good and applied outer pressure tank structure of submarine ? quasi - homocentric structure, based on approximate analytical methods and finite element stress analysis method are made

    提出了準同心圓式潛艇外部耐壓液艙結構是一種優良實用的結構型式，給出了這種結構基於近似解析法和基於有限元應力分析的結構優化設計方法。
  5. The fundamental ideas and methods of this paper are also illuminated in this chapter. in chapter two, a one - dimensional and semi - closed shallow sea mode is studied. the approximate analytical expressions of the water level at the top of the bay induced by the nonlinear interaction between the storm surges and the astronomical tides are obtained by using the perturbation method

    在第二章里，研究了一維半封閉水域中的非定常風暴潮與天文潮非線性相互作用的問題，用攝動方法求出了具有實際意義的海灣頂部增水水位的一階近似解析表達式，並給出了增水過程曲線。
  6. The main results achieved in this thesis can be summarized as follows : 1. by means of the fourier series expansion, an approximate analytical propagation equation of flattened gaussian beams ( fgbs ) passing through an apertured paraxial abcd optical system is derived, and illustrated with numerical examples, when the transmissivity of the aperture is t ( x ) = cos ( x )

    用傅立葉級數展開法研究了平頂高斯光束通過有光闌限制的近軸abcd光學系統的傳輸特性，導出了光闌透射率為t （ x ） = cos （ x ）時的近似解析傳輸公式，硬邊光闌的情況可作為= 0的特例得到。
  7. A new numerical algorithm integrating a quasi - analytic numerical algorithm with the gear numerical algorithm is used to solve the ordinary differential equations with stiff problem. to accelerate the solving of ode, the optimum step method is introduced into the composite numerical algorithm

    針對重整反應模型方程的特殊結構和剛性問題，提出了一種形式更簡單方便的近似解析數值演算法和吉爾法相結合的混合數值演算法，並引入了最優步長方法。
  8. A numerical approach and a novel analytical solver are used to solve the governing equation of cantilever beam actuated by electrostatic force, and dynamic responses of the cantilever are calculated by mode - superposition

    摘要給出了一種靜電力作用下微懸臂梁控制方程的數值求解方法，提出了求解該模型的近似解析式和修正解析式，並採用模態疊加法計算微梁的動響應。
  9. With the consideration of the vertical wave effect of soil and soil - pile interaction, an approximate analytical solution to vertical vibration of pile system with variable impedance in visco - elastic layered soil is developed. a simplified and practical mathematical model for interaction between soil layers is proposed, and its applicability is theoretically investigated. based on this model and by using laplace transforms and the transmit property of impedance function, the analytical expression of the impedance function and solutions of the displacement and velocity response function in frequency domain and in time domain at the pile head are derived

    4 、從三維軸對稱土模型出發，對考慮樁土耦合作用、土層層間聯系以及樁周土豎向應力梯度變化條件下的成層粘彈性土中完整樁及變阻抗樁系統縱向振動問題進行了研究，提出了成層土中變阻抗樁系統縱向振動問題的近似解析解法和樁周土層層間相互作用的簡化而實用的數學模型，並利用拉氏變換和阻抗函數的傳遞性，獲得了成層土中任意段變阻抗樁樁頂阻抗函數的解析表達式，以及樁頂速度導納和時域速度響應解析解和半解析解。
  10. Using this method not only the necessary condition of existence and the approximate analytic expressions of the periodic solutions for primary - harmonic, super - harmonic and sub - harmonic resonances can be obtained, but the criteria of stability for these solutions can also be gained

    該方法給出了二階強非線性非自治系統主諧波共振和超諧波、次諧波共振周期解存在的必要條件，求得了這些周期解的近似解析表達式，並且得出了解的穩定性判據。
  11. Approximate analytical solution to the two - species competition system

    兩種群競爭系統的近似解析解
  12. The approximate analytic expressions can be derived out by computer aided method

    近似解析解表達式由計算機輔助推導，計算程序集推導、計算、數值解以及繪圖於一體。
  13. Its analytical solution is obtained and is compared with the measured results in real field

    通過解析分析，得到振動輪運動的近似解析式，並與實測的動響應進行了定性比較。
  14. Meanwhile, deeply research has been done on the analytic root of current rush to interception air - mass with delivery system

    本文同時還對輸水管道壓力水流沖擊截留氣團近似解析解進行了深入研究。
  15. Comparing the difference between the small - signal approximation analytical and numerical solutions, it is realized that the small - signal approximation is not an approximate choice for the analysis of the dynamic characteristic of the bistable laser

    在對小信號近似解析解與數值解進行比較的結果中，得知小信號近似並不適合雙穩動態特性分析。
  16. The result of a case studying shows that the settlement calculated by large strain consolidation theory is large than that by infinite strain theory during the consolidation procession, but the final settlements calculated by both theories are same. more general assumptions than that in the classical consolidation theory is adopted and the exact analytical solution of nonlinear finite strain self - weight consolidation based on this assumption is obtained. by applying same experiment data, the comparison of the solutions of linear and nonlinear finite strain theory, as well as the numerical solution from finite element method is presented

    對此模型求得到了某些特殊條件下的lagrange級數解答，並通過尾礦沉降池實例分析，驗證了所得解答的合理性和有效性；建立了土體在堆積過程中的大應變固結模型，通過其對稱性構造出相似變量之後，由攝動法求得了近似解析解答，並通過試驗數據與傳統的線性化固結理論的解答相比較，顯示了傳統線性化固結理論在該問題上的局限性。
  17. While in pratical applications, the esd method still has drawbacks in graphical modeling capability, connections with products " structures, size control of esd models, and etc. through in - depth study of the esd method, this paper systematically describes the framework and its basic modeling elements of esd, explains the principles of risk modeling, gives the mathematical model of the basic modeling elements of the esd framework to support the quantitative analysis of the esd model. based on the research above, this paper expands the esd framework, which includes : to overcome the drawback in graphic modeling capability of the esd method, the paper invents some new logical modeling symbols like " n / k " gate, sequence gate, expandable gate and constraint, those enrich the modeling capability of the esd method. to overcome the drawbacks in connections with products " structures and size control, the paper explains the multi - layered modeling principles based on the esd

    在上述研究基礎上，對esd框架進行了擴展，包括：針對esd圖形建模能力的不足，提出了「 n中取k門」 、 「順序門」 、 「可擴展門」以及「限制」等新的邏輯建模圖形符號，豐富完善了esd的建模元素；針對esd模型與產品結構關聯及規模控制方面的局限，提出了基於esd的層次化建模原理，使得可基於esd進行層次模塊化建模；針對esd與其它安全風險分析技術的綜合運用問題，分別討論研究了與故障樹分析技術、馬爾科夫狀態轉移圖集成的esd ft和esd m方法，提高了esd建模的靈活性；針對動態系統風險評價模型的求解問題，討論提出了運用esd求解動態概率風險評價問題的解析解或近似解析解方法，並予以了示例說明。
  18. With the shearing deformation theory and deductive theory, the calculational formulas of flexibility coefficient of the pile head can be obtained. the interaction of the soil elements is calculated according to the layered - soil model. consequently, approximate analytical formulas of the flexibility matrix of piles - soil system, which undertake the vertical loads, come out

    採用剪切位移法，利用遞推原理導出樁頂柔度系數的計算公式;採用分層地基模型計算土體單元之間的相互作用，從而獲得承擔豎向荷載樁土支撐體系的柔度矩陣近似解析公式，進而得到樁土支撐體系剛度矩陣。
  19. In the second part, we consider a class of reaction - diffusion equations in developmental biology. near the bifurcation points, using the liapunove - schmidt reduction process, we obtain the nontrivial solution branches which are bifurcated from the trival solution when the parameter changes

    然後考慮發育生物學中一類反應擴散方程組，在分歧點附近利用liapunov - schmidt約化技巧，得到了從平凡解分歧出來的隨參數變化的非平凡解枝以及它們的近似解析表達。
  20. ( 3 ) by means of expanding the aperture function into a finite sum of complex gaussian functions, the propagation of fgbs through a paraxial optical abcd system with hard - edged aperture is studied, and the approximate closed - form equations of apertured fgbs are obtained for the first time. the results obtained by using the approximate closed - form equation and collins formula are compared, and the condition under which the approximate closed - form equation is applicable is analyzed

    （ 3 ）利用光闌函數的復高斯函數展開法對截斷平頂高斯光束的傳輸作了研究，首次得到了截斷平頂高斯光束在近軸abcd光學系統中傳輸時的近似解析傳輸公式，通過比較用近似傳物公式和colhns公式直接數值積分所得的結果，得出了近似公式的適用范圍。
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