hybrid finite element 中文意思是什麼
hybrid finite element
解釋
混成有限元素-
Based on the theories of hybrid / mixed finite element method, the generalized energy functional including stress, mechanical displacement, electric displacement, electric field and electric potential is used, with the electric - potential relations and the constitutive equations of piezoelectric materials constrained, hybrid energy functional including mechanical displacement, electric potential and stress is gained. moreover, splitting in - plane components and transverse components, the mixed energy functional in which mechanical displacement, transverse stresses and electric potential as basic variables is derived. with the use of surface stress parameters of sub - elements, the continuity of transverse stress at interfaces between layers is obtained
在回顧雜交混合有限元理論的基礎上，從包括位移、應力、應變、電勢、電位移、電場強度六個未知量的廣義壓電材料能量泛函出發，通過約束電場強度?電勢關系、應力與應變及電場強度的關系，得到僅包括位移、電勢、應力三個未知量的雜交變分泛函，利用一般層合板的雜交混合變分原理，分離面內分量和橫向分量，導出以位移、橫向應力、電勢為未知量的壓電層合板的修正變分泛函，作為壓電層合板的雜交元列式的理論基礎。 -
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。 -
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。 -
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。 -
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。 -
This technique combines the edge - based finite - element method with physical optics ( po ) and physical theory of diffraction ( ptd ). the hybrid technique is applied to compute the scattering fields from the electrically large bodies with cracks and cavities on their surfaces. it is also used to analyze the scattering characteristics of microstrip antennas residing in a cavity mounted on metal objects with finite sizes
本文採用edge - basedfem為基本方法，結合物理光學法（ po ） 、物理繞射理論（ ptd ） 、邊界積分方程（ bi ） 、區域分解技術（ ddm ）和完全匹配層（ pml ）吸收邊界條件等求解方法構成的混合方法，對電磁散射和輻射問題進行了研究，主要包括以下內容：提出了一種edge - basedfem與物理光學方法和物理繞射理論相結合的混合方法? fem po - ptd方法，並將該混合方法應用於帶有腔體或槽縫的電大尺寸導體目標的電磁散射特性分析和位於有限導體目標上的背腔式微帶貼片天線的電磁散射特性分析。 -
By utilizing the finite element analytical calculation and impacting fatigue test, hybrid ratio and mode of hybrid of bicycle frame in hybrid fiber compound materials were determined, and the optimal design was carried out
利用有限元分析計算和沖擊疲勞試驗，確定了混雜纖維復合材料自行車車架的混雜比、混雜方式，並進行了優化設計。 -
Hybrid finite element model
混合有限元模型 -
Based on productional level and capability demand of hybrid electrical vehicles in our country, this paper designed a flywheel through analyseing and calculateing of different composite materials and shapes. through a finite element analysis method, the limiting rotational speed of composite flywheel was calculated and critical rotational speed was analyzed
本文根據混合動力客車對飛輪電池中飛輪的性能要求以及國內的生產實際水平，在對多種不同復合材料組合和不同結構形狀的飛輪進行計算分析的基礎上，得到一種飛輪設計，並計算了它的極限轉速和臨界轉速。 -
Coarse - mesh - accuracy improvement of bilinear q4 - plane element by the combined hybrid finite element method
平板元的粗網格精度改進 -
Hybrid finite element method is analyzed and applied in the axisymmetric problem, of which the calculation equations are deduced
=研究應力雜交有限元方法，推導計算公式，將其應用在軸對稱問題中。 -
Two variant semi - analytical generalized hybrid mixed crack finite element procedure for computational fracture mechanics in multi - layered domains
金屬體積成形過程有限元模擬中六面體網格重劃技術的研究 -
In this paper, a generalized hybrid finite strip method is deduded for analyzing the shear lag effect in box girders. it has the advantage of the generalized finite strip method and hybrid stress element. shear lag effect in thin - walled box girder is analyzed with this method and stiffness matrix of generalized hybrid finite strip element is deduced. a calculating program for thin - walled box girder " s generalized hybrid finite strip method is compiled with fortran language and performed in visual fortran environment of pc computer. a typical example demonstrates that the proposed method has higher accuracy and efficiency, is suitable for analysis of shear lag effect in box girders
本文結合應力雜交元法和廣義有限條法導出一種用來分析箱梁剪力滯效應的廣義應力雜交有限條法，它兼有應力雜交元和有限條法的優點。運用這種方法對薄壁箱形梁的剪力滯效應進行了分析，推導出廣義應力雜交有限條元的單元剛度矩陣，用fortran - 77語言編寫薄壁箱形梁廣義雜交有限條法程序（ hfsbg . for ）在visualfortran環境下運行。具體算例的數值結果表明：廣義應力雜交有限條法用於計算箱形梁的應力分析具有很好的精度和效率，適合於分析箱形梁的剪力滯效應。 -
This paper introduces the basic concepts of object - oriented programming to the finite element method for linear static analysis. in the view of ooad ( object - oriented analysis and design ) method, a set of basic classes for the fem system are founded and their relationship is discussed too. all these fem classes are implemented in c + + language because the hybrid language c + + is an object - oriented extension of c. ( this language includes all the feature of c and is well suited to solve numerical problems because of its efficiency. )
本文在靜態線性有限元系統中引入了面向對象的程序設計方法，介紹了面向對象方法的基本概念及特徵，並通過有限元的面向對象分析和設計，確定了一套基本的有限元對象類及有限元的面向對象模型，本文設計的所有類均採用c + +編程語言進行了實現，最終形成了一套fem類庫，它們以動態連接庫的形式存在。 -
Application of hybrid finite element method / boundary integral method ( fem / bi ) to em scattering problems is studied in this paper
本文將有限元（ fem ）邊界積分方程（ bi ）混合方法應用於電磁散射問題。 -
Nonlinear finite element dynamic analysis on hybrid masonry - concrete structures strengthened with cfrp
加固底層框架砌體結構非線性動力分析 -
Hybrid stress finite element method for nonlinear composite materials
非線性復合材料的一種雜交應力有限單元方法 -
Then we apply the method of incompatible fem and hybrid stress fem into axisymmetric problems of transversely isotropic material. with the penalty equilibrium optimization method, we find a new hybrid stress element special for axisymmetric problems of transversely isotropic material. after several numerical examples, the conclusion is made that the hybrid stress finite element with penalty equilibrium has the best capability among all these elements
本文結合電彈耦合問題的應力雜交元優化條件，第一次提出了電彈耦合問題的軸對稱雜交應力元方法，建立了軸對稱電彈耦合雜交應力單元列式，得到了一個全新的四節點軸對稱電彈耦合雜交應力單元，通過算例可見其實用性和合理性。
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