newton-raphson 中文意思是什麼

newton-raphson 解釋
扶生方法
  • newton : n 1 牛頓〈姓氏，男子名〉。2 Sir Isaac Newton 牛頓〈1642 1727，英國科學家〉。3 〈n 〉【物理學】牛...
  • raphson : 拉富生
  1. Abstract : since the multiple failures situation is not uncommon in the clinical medicine, we explore the use of proportional odds model to the multivariate interval - censored data. the approach is based on the conditional logistic regression, which prevents the complications in the existence of nuisance parameters. the estimation of parameters is obtained by the newton - raphson algorithm. the sandwith estimator for the covariance is made according to the situation where there is correlation in the score statistic. simulations are also presented to assess the accuracy of the procedure

    文摘:探索比例優勢模型在臨床醫學中常見的多結局區間截斷數據中的應用.用條件的邏輯回歸方法避免討厭參數的估計，用牛頓-拉普森演算法估計回歸系數，用"夾心方差"估計量作為參數方差的估計.通過隨機模型檢驗模型應用的有效性
  2. Based on the above, another mathematics model for calculation about saturation index ( complex compounds considered / unconsidered ) which can reflect water - rock interaction ' s state has been built up, moreover newton - raphson which is a iterative way has been used to resolve the mathematics model, the results show that si ' s value accord better with practice when complex compounds are considered.

    在此基礎上，建立了旨在反映水-巖（或礦物）系列間反應狀態的飽和指數si的數學模型，採用newton - raphson迭代法進行求解。在計算中，分別考慮絡合物的影響和不考慮絡合物的影響。結果表明，基於考慮絡合物的影響所求得的si值比較符合實際。
  3. We analyze the assembly model and propose a mathematics model and tree - representing model of the assembly who not only has a small data size, but also can be manipulated easily. this thesis not only gives the virtual representing concept the instance representing one, but also defines the concept of assembly constraint such as coupling, being alignment, being coaxial and being equidirectional. based on such concepts, a revised newton - raphson iterative algorithm is proposed, which can deal with the singularity and ill - condition of jacobi matrix

    首先分析了裝配體的模型問題，提出了裝配體的數學模型及樹形式表示的裝配體表示模型，模型具有數據量小、操作簡單的優點：文章對所涉及的約束諸如耦合、對齊、同軸、同向的裝配體位置描述概念進行了定義，引入了裝配約柬概念，從而提高了裝配設計效率；在此基礎上，文章討論了裝配約束的求解方法，提出了newton rapson迭代法的改進演算法，使得系統能更好地處理jacobi矩陣的奇異和病態的情形。
  4. The stability behavior of kiewitt ' s suspen - dome was analyzed on the initial state. by the geometrical nonlinear finite element method, the equilibrium path is traced using the cylindrical arc length technology and incremental newton - raphson method. the influence of kinds of parameters is studied

    採用非線性有限元理論，結合牛頓荷載增量法和柱面弧長法的跟蹤技術，對kiewitt型弦支穹頂結構進行了考慮幾何非線性的全過程分析；為了掌握各個參數對靜力穩定性的影響程度，進行了參數分析。
  5. These geometric nonlinear behaviors such as the sag of inclined cables caused by their own dead weight, the interaction of large bending moment and axial forces in girders and towers, and the large displacement effects are considered during calculation. newton - raphson method and the displacement convergence norm are used to approach the solution iteratively

    計算過程中計及了拉索的垂度效應，彎矩和軸力對主梁和主塔的組合效應以及結構的大變形效應等幾何非線性影響因素，採用newton - raphson方法和位移收斂準則進行迭代求解。
  6. Newton - raphson method

    牛頓-拉富生法
  7. Using the newton - raphson iteration method, the node coordinates of elements on the reference configuration or the current configuration, can be obtained efficiently

    使用牛頓?瑞費遜迭代法，可快捷地得到初始構形或當前構形上的節點坐標。
  8. 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。
  9. According to the characteristic of the distribution network, based on thenewton - raphson method, used the object - oriented thought, bring forward an unite load node method for power flow calculation, and making a improvement of the node number method which is suitable for newton - raphson method, obtained a rapid convergence calculation method for power flow calculation

    根據配電網的特點，基於牛頓?拉夫遜法運用面向對象的思想，提出了負荷節點合併的潮流計算方法，並引入了改進的，適合於牛頓拉夫遜法的節點編號方案，得到了一個快速收斂的潮流演算法。
  10. Three circumstances on the geometric non - linear analysis are considered : the sag phenomenon of cables the nonlinear behavior of bending members and the geometry change due to large displacement. the non - linear behavior of cables is verified by introduced the ernst cable modulus of elasticity and cr formation is applied to analyze the non - linear of beams. an incremental - iterative method based on the newton - raphson method is adopted here to solve the non - behavior equations

    幾何非線性分析主要考慮三個方面：索的垂度效應、樑柱效應和結構大位移，其中：索的非線性分析採用ernst彈性模量對索材料的彈性模量進行修正，計及索的垂度效應的方法；梁單元的非線性分析採用cr列式法，計算中採用基於newton - raphson法的增量迭代方法求解非線性方程組。
  11. The final nonlinear algebraic equation set is solved using the step - by - step newton - raphson iteration and the deformed curves for the corresponding state of each load increment can be determined

    對應每個荷載增量，可求得鋼管混凝土拱在相應狀態下的變形曲線。對各荷載增量進行反復迭代，直至得到荷載的極限值。
  12. In the analysis, a cfst arch ( single tube ) is first divided into a finite number of straight beam elements. according to the virtual work principle and the modified newton - raphson iteration method the tangent stiffness matrix considering double nonlinear properties is established. with regard to the non - equilibrium forces, the material nonlinear property along the height of the section and the length of the element is considered and the computation accuracy is improved as a result

    本文首先將拱肋劃分為一系列的直梁單元，運用虛功原理和修正newton - raphan數值迭代演算法的基本原理準確推導了拱肋直梁單元的非線性切線剛度矩陣；在不平衡力方面考慮了沿截面高度和單元長度方向材料非線性的發展過程，提高了計算精度；再根據得到的切線剛度矩陣採用荷載增量步內修正newton - raphan迭代的增量迭代法進行了求解。
  13. It is applied in analyzing and calculating static distortion of skylift in virtue of updated lagrange formulation and iterative method with moving coordinates. the solutions are worked out by increment principle and newton - raphson method

    在分析和計算消防車伸縮臂的靜態變形時，引入了幾何非線性的思想，藉助更新的lagrange格式，將增量原理與牛頓-拉弗遜法相結合，並且使用帶有動坐標的迭代方法求解。
  14. When calculation, newton - raphson iteration was applied to solve the set of nonlinear navier - stokes equations in the flow area

    在計算上，流體區域內採用newton - raphson迭代求解非線性的navier - stokes方程組。
  15. According to newton - raphson ( nr ) method, a new power flow method based on reliable power flow technique is proposed

    摘要根據牛頓法的基本原理，建立了一種基於輻射配網潮流技術的求解有環配電網潮流的新模型。
  16. In the study, sd2000 spectrometer is applied to obtain radiation spectrum of flame within wavelength 480 - lloonm, from which flame temperature and monochromatic emissivity are derived by newton raphson non - linear method and levenberg - marquart modeling method. the flame monochromatic emissivity is translated in form of f ( / l ) and a ( a ) respectively

    在該方法中，採用sd2000型光纖光譜儀測量火焰在可見光（ 480 - 1100nm ）波長范圍內的火焰的輻射光譜，結合newton - raphson非線性迭代演算法和levenberg - marquardt最優化演算法，得到火焰溫度和單色輻射率變化規律。
  17. The full newton - raphson iterative method with line search is adopted for solution of the obtained discretized equations

    對導得的離散化非線性代數方程組採用帶線性搜索的完全newton - raphson方法迭代求解。
  18. During the solving process, the increment form can approximate the differential form and newton - raphson iteration techniques are introduced into the computation

    求解實際中，可用增量形式代替微分形式，並且採用newton - raphson增量迭代法進行計算。
  19. A corresponding nonlinear finite element program in fortran is presented and a new stability analysis method about complex slope is proposed, using the newton - raphson method to solve the nonlinear equations

    根據原理推導出了穩定的計算公式，建立了非線性分析的實用方法，並採用牛頓?拉斐遜方法對本文所建立的非線性方程組進行求解。
  20. The calculating results are almost equal whether newton - raphson method or its modified form is used, especially with more times of loading, which indicates that essential of the two methods is same

    無論是採用牛頓-拉弗遜法還是其修正的方法，結果相差不多，特別是加載次數增多時，兩者的計算數值趨於一致，所以其實質上是完全相同的。
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