numerical hybrid 中文意思是什麼

numerical hybrid 解釋
染色體異數雜種
  • numerical : adj 數字的;數值的;用數字表示的。 (a) numerical order 號數。 a numerical statement 統計。 the ...
  • hybrid : n 1 【生物學】雜種,雜交種;混血兒。2 (由兩種來源的東西組成的)混合物;受過兩種不同文化傳統教育...
  1. The study work includes three parts. in the first part, numerical methodology of three - dimensional discrete fracture network ( dnf ) model casing on hybrid bem - channel was presented, and the technique for improve the model ' s computing efficiency was also studied

    首先,提出了一種基於混合邊界元?管流的改進的三維離散裂隙網路模型,並研究了提高模型計算能力的方法,使其可以具有更好的工程應用性。
  2. Forward displacement analysis for lps + 3tps, lpt + 2tps, lpps + 4tps type pmts are performed based on result elimation method. closed form solutions for forward displacement of these hybrid type pmts are derived, numerical examples are given for illustration

    基於結式消元法分別對1ps + 3tps型、 1pt + 2tps型和1pps + 4tps型並聯機床進行了位置正解分析,獲得了封閉形式的解析解。
  3. This three hybrid type pmts possess such advantages as : simple structure, good dexterity high machining precision, high machinillg speed, position decoupling wth orientation, easy nc programming et al, can meet the need of numerical colltrol machining for large pwts with complex wes

    這三種混聯結構並聯機床具有結構簡單、加工靈活、加工精度高、加工速度快、加工工藝性好、位置與姿態解耦和數控編程方便等優點,可以滿足大型具有復雜曲面類零件的多軸聯動數控加工的要求。
  4. The results show that it is the numerical method of high analyzable degree for the hybrid tvd scheme combinated with fvm, and the scheme is not only sufficiently accurate and nonoscillatory, but also capable of treating automatically hydraulic jump

    算例驗證表明:應用組合型tvd ? muscl格式配合有限體積法是一種高解析度的數值方法,且tvd ? muscl格式對于自動捕捉激波和抑制間斷附近的數值解波動十分有效,它對間斷具有高解析度。
  5. Present a modified particle filter ( pf ) algorithm based on the los / nlos binary state information of propagation environment using the numerical method of the probability density function ( pdf ) about the hybrid noise. the key idea is using numerical method to calculate the hybrid noise pdf, and integrating binary environment information to get filtering result

    2 .給出了應用粒子濾波器改進直達波與非直達波混合環境中移動終端跟蹤性能的新演算法,特色是利用數值方法計算混合噪聲密度函數,結合二元環境信息完成濾波估計。
  6. Finally, some simplification methods to the model were studied and a modified block elimination contraposing the features of the model ' s linear system was developed, which can greatly decrease the model ' s requirement to computer resources. in the second part, numerical methodology of hybrid techniques was developed, which uses dfn models developed in the fist part to build continuum approximations of fractured rock

    第三,本文將一種用離散的水?氣分界面模擬非飽和滲流的數值模型擴展到裂隙網路中,為用本文所構建的離散裂隙網路模型模擬裂隙巖體成富擁要柳廳錄非飽和滲流提供了一個初步的框架。
  7. Abstract : incompatible element nh11 and hybrid stress element 18 were employed to analyze rock burst occurring in coal face 9108 of sanhejian coal mine. compared with the results from ansys, the two optimized fems can execute more accurate numerical simulation in the research of rock burst as well as other rock problems and lessen the errors from inaedquately meshing in huge calculations due to the limitation of labor and computer time. in addition, the criterion of averaged generalized stress rate was proposed and used to determine the site and moment of rock burst. the given conclusion is in accordance with the face of coal face 9108 very well

    文摘:利用優化非協調元和雜交元分析了三河尖礦沖擊礦壓,並與ansys程序的計算結果進行了比較.認為優化有限元在沖擊礦壓乃至巖石材料的數值模擬中能給出更為精確的結果,也可減小大型計算中由於人力、機時所限粗分網格產生的誤差.分析中,採用了廣義平均應力率準則來判斷沖擊點位置和沖擊時刻,所得結論與實際情況吻合
  8. Numerical investigation on combustion process in a spark - ignited direct - injection alcohol engine via hybrid combustion model

    用混合燃燒模型研究缸內直噴醇類燃料發動機的燃燒
  9. Numerical method on unstructured hybrid grid for hypersonic flows with magnetic fields

    非結構混合網格高超聲速繞流與磁場干擾數值模擬
  10. Using the complex potential method in the plane theory of elasticity of an anisotropic body, the series solution of finite anisotropic thin plate containing an elliptical inclusion is proposed with the help of faber series. a hybrid element with an elliptical inclusion for anisotropic materials is obtained by using the hybrid variable principle, and the element efficiency is verified by numerical examples. the state of the damage is modeled by an elliptical soft inclusion, and using the point stress criterion based on characteristic curve and yamada - sun etc. criteria, the prediction of the strength of a composite laminate with damage is set up

    首先基於經典層板理論,將復合材料層板的彈性問題化歸為均勻各向異性板來求解;採用各向異性體平面彈性理論中的復勢方法,以faber級數為工具,給出了有限大含橢圓核各向異性板彈性問題的級數解形式;利用雜交變分原理,成功導出含橢圓核各向異性板雜交應力有限元,並用算例驗證了該單元的可行性和有效性;採用含剛度折減橢圓形彈性核的沖擊損傷模型,引入基於特徵曲線和yamada - sun破壞準則的點應力判據,建立了含損傷復合材料層板剩餘強度的分析方法;通過數值計算詳細討論了各種幾何參數對損傷層板應力分佈、剩餘強度的影響,得到了一系列對工程應用具有實用價值的結論。
  11. The numerical results show mat the fem models applied in this paper are correct, and the hybrid element method is effective in approving calculation efficiency

    雜交元計算結果表明對于求解應力奇異性問題,構造合適的雜交單元可以有效的提高計算效率。
  12. After that in chapter four, a axisymmetric hybrid stress finite element for piezoelectric media is presented on the optimization condition for the coupling of electrical and elasticity. it ' s practicable and rational in the numerical example. in the fifth chapter, we study the p - version hybrid stress fem

    本文還研究了基於升階譜的雜交應力元方法,建立了一系列p 5的高階雜交應力單元列式,數值計算結果顯示採用正確的高斯積分,將使得本方法切實可行,同時兼有升階譜和雜交元的優勢。
  13. The numerical example shows that if we use the correct guess integral, this method will give right answer. it has good performance for both p - version and hybrid stress fem. last, a hybrid stress finite element with second stress completion is presented, which keeps the virtue of normal hybrid finite element, especially good for incompressble material, because it can avoid the self lock of displacement and instability of stress results

    第一部分還首次提出了一個滿足二次應力完備的雜交應力單元,它的應力滿足二次應力完備,而且通過巧妙的應力插值函數,避免了一般雜交應力元的矩陣求逆過程,而通常這個求逆過程都是很耗時的,這個二次應力完備雜交元保持了一般雜交元的優點,對于不可壓縮問題具有較好的性能。
  14. This paper try to mix the finite strip method and hybrid stress element, and deduce a numerical and computer method which combines the advantages of the two methods - mixed hybrid finite strip method ; analyze the intensity and stability of the orthotropic plate by this method ; deduce the formula of the orthotropic plate ' s analysis and calculation under this method ; compile the program of orthotropic plate ' s mixed hybrid finite strip method ( hfsop. for ) with fortran - 77 language, and perform them under fortran90 environment of pc computer ; comparing with traditional methods by example of computing, prove that the mixed hybrid finite strip method have better degree of accuracy, moderating the stiffness of plate, coming more close to actual conditions, avoiding over - hard or over - soft ; finally, this paper analyze the stability of a orthotropic plate by this method, and deduce the - value of critical stress

    論文將有限條法和應力雜交元法兩者結合起來,導出一種兼有兩者優點的數值計算方法? ?混合雜交有限條法。運用這種方法對正交異性板的強度和穩定進行了分析,推導出正交異性板在這種方法下的分析計算公式,用fortran - 77語言編寫正交異性板混合雜交有限條法程序( hfsop . for )在微機fortran90環境下運行。通過算例與傳統的方法比較,驗證混合雜交有限條法有更好的精度,使板的剛度適中,更接近實際情況,避免「過硬」或「過軟」 ;最後,論文還用此方法對一正交異性板進行了穩定分析,得出臨界應力值。
  15. In this thesis, the application of combined hybrid method to axisymmetric elasticity problem and the optimization of combined hybrid axisymmetric finite elements are discussed in a manner of combination of mathematical analysis with numerical investigation

    本文從理論分析和數值實驗的角度研究了組合雜交法在軸對稱彈性力學問題上的應用和加權系數優化的原則。
  16. One of the hybrid grids " advantages is easy to control the number of mesh layers and can decrease the number of grids, which make the numerical process require less computer resources and reduce the computation time. so the hybrid grids are involved in improving the computation efficiency. a finite volume hybrid solver which is based on jamson ' s scheme is developed

    該混合網格優點之一是能很好地控制靠近物面附近的網格層數,同時能減少網格的數量(在相同網格結點時與全場均採用非結構網格相比) ,這就降低了對計算機資源的要求,同時能減少計算時間,提高計算效率。
  17. Numerical examples shows the efficiency of the lhl method. two meta - heuristic hybrid algorithms are given that integrated lhl method with genetic algorithm and simulating annealing algorithm separately

    將該方法分別與遺傳演算法、模擬退火演算法相結合,提出了矩形件排樣問題的復合演算法。
  18. According to the standard of kddcup ' 99 and by adopting numeric mixed coding, 41 features of the captured network packets are extracted and transferred into numerical form which can be accepted by neural network in this paper, we present a misuse detection model based on hybrid neural network and decision tree

    根據第三屆國際知識發現和數據挖掘競賽( kddcup ' 99 )標準,對截獲的網路數據包進行41維特徵抽取,並採用混合數值編碼方法,使這些特徵轉化為能被神經網路處理的數值形式。
  19. In chapter 3, by minimizing a quadratic model restricting next search direction to a subset of span { - g _ ( k ), d _ ( k - 1 ) }, we propose other formula of parameter ~ ( * ) k convergences of the new method and its hybrid formula are proved under monotone line search. their numerical results show that they are efficient

    在第三章中,通過最小化一個限制下次搜索方向在span { - g _ k , d _ ( k - 1 ) }子集上的二次模型,我們提出了_ k ~ *取新形式或其雜交形式的共軛梯度法是有效的。
  20. In modern aircraft design, there is an urgent requirement for accurate, efficient and easy - to - use numerical analysis tools. for this purpose, this thesis introduces recent progress in the generation and application of cartesian grid with tree data structure and adaptive refinement. coupled with hybrid grid techniques, euler and navier - stokes equations are solved

    本文針對現代飛行器設計中對實用、高效、準確的氣動力分析工具的迫切需求,基於叉樹數據結構,發展了一種自適應直角切割網格方法,採用混合網格技術,實現了對流場euler和navier - stokes方程的計算求解,進一步完成了復雜增升裝置繞流和外掛物分離投放非定常流場的數值模擬。
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