極限元 的英文怎麼說
中文拼音 [jíxiànyuán]
極限元
英文
limit element-
Based on the analysis of mechanism for joint region, the " frame - wall " and " aslope compression stub column " mechanical models and yielding patterns of core zone of the joints are set up. the shear load - carrying formulation for joint core zone is also given in terms of plastic ultimate analysis. and then, the comparisons between the formulas given in this paper and that of chinese design code ( draft ) and nonlinear fem as well are presented
對節點核心區的抗剪，通過受力機理的分析，建立了鋼「框架剪力墻」加混凝土「斜壓短受力體系及其屈服機制，根據塑性極限分析，給出了節點核心區抗剪承載力計算的迭加公式， 《規程》公式和非線性有限元近似模擬分析結果進行了比較。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。By analyzed interactions of combined limit pipe load components, simplified check formula for pipe load strength are put forward and the calculation method of relevant allowable pipe load values based on shell finite element analysis is presented as well
通過對組合極限接管載荷分量相互關系的分析，提出了接管載荷強度驗算簡化公式和以殼結構有限元應力分析為基礎的許用接管載荷計算方法。With the use of finite method we have developed computer simulation software for vacuum microtriodes with wedge - shaped and cone - shaped cathode on the basis of stduying deeply the field emission theory of vacuum microelectronics. the software included field section, grid point numbering, and the calculation of electric currents, transconductance and cathode capacitance, moreover, it can simulate the properties of vacuum microeletronic with variant structures and sizes. the relationship was studied and simulated among electic properties and device structures, sizes and cathode materials etc. the optimized design of vacuum microtiode was proposed
本文在深入研究真空微電子器件場致發射理論的基礎上，根據圓錐形、楔形陰極真空微電子三極體的不同特點，分別建立了物理和數學模型，在考慮空間電荷密度影響的前提下，以有限元法為基礎採用迭代的方法計算出真空微電子三極體內的電勢分佈情況，繪制出了等勢線、電子軌跡線，並得到了器件電學性能隨幾何參數的變化情況。Combined with the complexity of 3d fem analysis of seepage field of underground project, the simulation of faultage was comprehensively discussed
摘要結合地下工程滲流場三維有限元分析復雜性的實際，對斷層的處理進行積極探討。For the hyper accuracy interpolation technique, which resolves the accuracy limitation of pixel physical size, derives out the star spot interpolation accuracy limitation based on the star spot mathematical model and photoelectric statistics
針對克服像元尺寸對測量精度限制的超精度內插細分技術，在建立了星點光斑數學模型的基礎上，利用光電統計理論，推導了星點光斑內插細分精度的極限公式。Adaptive carrying ability finite element analysis of tricycle frame
基於有限元法的三輪摩托車車架承載極限的適應性分析Combining with the research task researching on the deformation and stability of deep excavated cuts and high filled embankment of the traffic department in fujian province, based on the residual soil slope project on the project site at k15 + 183 of yong - zhang highway ( yong ' an section ), adopting non - linear theory, modern monitoring technology and numerical simulation technology, the deformation and stability of cutting cliff debris and residual soil slopes have been studied systemically and synthetically in the thesis. at the same time theory analysis, the analysis and estimate of field monitoring are taken into account in this course. main research work and working achievement are summed up as follows : ( 1 ) with the acquaintance of the trends and development about the deformation and stability of slopes at home and abroad, slopes are classified and summarized systemically
並通過k15 + 183工點路塹土質邊坡的各類位移變形的監測成果驗證了該程序的正確性及適用性； （ 5 ）通過應用大型有限元軟體ansys模擬分析，不僅分析了其隨著開挖時間步的應力應變關系，並模擬了與實際測斜管相匹配的測斜路徑，通過對各開挖時間步的模擬計算分析，得到了與實測數據較符合的結果； （ 6 ）綜合監測分析成果和極限平衡理論計算分析成果，對k15 + 183工點路塹邊坡的原設計坡率和幾何形態進行了優化計算分析，取得了較為滿意的結果。Because of limit that invisibility and discommodious in anciently program, based on the method of limited rigid body equilibrium, using visual program language vb and connect autocad, realize plane and solid programme of abutment analysis of arch dam, provide alternation interface for designer. presently, our country constructing and will construct high 300m arch dam, it is important to judge security based on nonlinear fem analysis. basic theory of nonlinear fem analysis and its realization in ansys were studied
針對傳統程序的存在問題，非直觀、不易操作特點，以剛體極限平衡法為基本分析方法， visualbasic作為操作平臺，結合autocad圖形軟體，完成了剛體極限平衡法二維、三維壩肩穩定分析程序設計，使之具有直觀性，可視性、易操作性，為設計人員提供了具有友好界面的工程使用軟體目前我國西部在建和將建一批300m級的高拱壩，運用有限元方法計分析拱壩穩定性、評判大壩安全度十分有必要。Linear induction motor is an important kind of machines which have some merits such as simple structure, low cost, durability, convenience for maintenance etc. the subject of this thesis is to study a big circular ring linear induction motor, and the major works in this thesis are summarized as follows : ( 1 ) considering the effects of the finite length of primary core, one - dimension analytical solution for the air gap field is cited in this paper. based on it, the single layer winding magnetic field is studied. considering whole - pitched and short - pitched winding configuration with odd poles and half - fulled slots in both ends, the double - layer winding magnetic field is analyzed, respectively
本文對大圓環直線感應電機進行了深入細致研究，內容包括： （ 1 ）本文採用有限長行波面電流作用於有限長鐵芯上的模型，引用了氣隙磁場一維解，研究了單層繞組磁場，奇數極半填槽雙層繞組在採用整距和短距時磁場的分析、比較，簡單介紹了二維解； （ 2 ）用有限元軟體ansoft對大圓環直線感應電機空載氣隙磁場進行了靜態分析，並分析了結果； （ 3 ）用軟體進行了額定電壓下的瞬態分析，得到了轉矩，位移，轉速隨時間變化曲線圖，利用單極性霍爾元件測定轉速並與軟體計算結果進行了比較，採用等效電路法計算了堵轉時的最大電磁力並做實驗進行了驗證，由實驗測得了三相電流波形，並與計算結果進行了比較，對其不對稱性進行了定性分析。With the calculation model, the seepage simulation calculation fem of slab joints and face slab with dense cracks becomes possible, and thus an effective way for seepage analysis with fem of cfrd under the extreme condition of slabs to be destroyed is provided
藉助于這些模型，使得面板接縫及密集裂縫型面板滲流的有限元模擬計算成為可能，從而為在面板發生極端破壞情況下面板堆石壩的有限元滲流分析提供了有效的途徑。Then, an ideal elastic stress - strain relation model is debated to buildup the equivalent load from the development deformation. the potential energy fonctionelle is built with the structural displacements introduced. the optimization equations are built by making the variation of the potential energy fonctionelle be zero
根據有限元方法，引入網格結點結構位移，建立了以單元結點lagrange位移和結構位移表達的變形位能泛函，利用變分法理論建立了使變形位能取極小值的優化模型。Based on the pseudo - static experimental results of nine abnormal joints, the damage process of abnormal joint is divided into four stages of original crack, entire crack, ultimate state and failure, the effect of axial force ratio, stirrup ratio and height of column section on seismic behavior of abnormal joint are discussed, the conclusion that anti - shear capacity of abnormal joint are studied in entire crack state by studying the minor core of abnormal joint is made, the calculating formula for anti - shear capacity of abnormal joint is proposed with a view to asymmetry in stirrup yield
摘要根據9個鋼筋混凝土框架異型節點試件的擬靜力試驗結果，指出異型節點受力過程分為初裂、通裂、極限和破壞4個階段；討論了軸壓比、節點核芯配箍率、柱截面高度變化對異型節點抗剪性能的影響；提出應考慮節點核芯區箍筋屈服的不均勻性並在通裂狀態下以「小核芯」為分析單元來研究此類節點抗剪承載力的建議；最終給出了異型節點抗剪承載力的計算公式。A full - scale experimental study and associated nonlinear finite element analysiswere undertaken to study the ultimate tensile strength of gusset plate connections toslotted tubes in this dissertation
本文研究的主要內容包括管板節點受拉極限承載力非線性有限元分析和足尺試驗研究兩部分。Simple design formula on the ultimate compressive strength of gusset plate connections to slotted tubes is presented basing on the results of finite - element study. it has bigness significance to perfect design formula of gusset plate connections to
本文根據有限元分析的結果，提出管板節點計算的簡化公式，為管板節點極限承載力設計計算公式的進一步完善提供了有意義的參考，同時對實際工程也有一定的參考價值。The results of full - scale tests in this dissertation canaugment international database of test and numerical analysis results for tubularjoints. based on the experimental study and numerical analysis, design proposal for theultimate tensile strength of gusset plate connections to slotted tubes is recommended. it has bigness significance to establish design formulae of gusset plate connections toslotted tubes and perfect design formulae of steel tension member and it also can givesome advices to practice engineering
在試驗研究的基礎上，根據有限元分析的結果，本文提出了關于管板節點受拉極限承載力的設計公式，為我國鋼結構規范建立管板節點受拉極限承載力設計公式及有關拉桿的設計公式的進一步完善提供了有意義的參考，同時對實際工程也有一定的參考價值。Abstract : since 1940s, there have been appeared harrod - domar model, solowmodel, romer model, lucas model and other models of economic growth, respectively. however, none of these can satisfactorily solve problems of economic growth. in this paper, author tries to establish a matter - element model of economic growth and studies the probable approaches of economic growth by constructing the set of tactics
文摘:最早的經濟增長模型是本世紀四十年代前後出現的哈羅德?多馬模型，隨之出現了新古典經濟增長模型、劍橋經濟增長模型、 「增長極限」的世界模型、新增長模型等.然而至今為止，沒有一個模型能根本性解決經濟增長問題.本文試圖建立經濟增長的物元模型，通過開拓策略集，探索經濟增長的可能途徑Secondly, the fu yang lailong mountain slope failure was introduced. the factors influcing the slope stability were analysed and the calculated results were compared with those obtained by insitu monitoring. finally, some conclutions were obtained, which are important to engineering application
本文結合富陽來龍山滑坡的工程實例，介紹了來龍山滑坡的概況，分析了滑坡產生的成因、滑坡要素及監測情況，並用極限平衡法和有限元法分別進行了安全系數的計算與分析，提出並驗證了自己的觀點。Finally, through the empirical datum union with the simulation datum, obtains the ballistic limit equation with the method of multiple linear regressions, and to the fitted equation carries linear relations significance test
最後，通過已有的實驗數據結合數值模擬得到的數據，用多元線性回歸的方法得到擬合的撞擊極限方程，並對擬合出的方程的線性關系進行顯著性檢驗。The main conclusions are remarked as follows : ( a ) the theory formula between the ultimate tensile force and interface cohesive intensity has been established. according to ultimate tensile force from in - site measure, the scientific interface cohesive intensity parameter has been achieved, then, the numerical analysis of the tension - draw test has been made
主要研究成果： 1 、從理論上建立拉拔試驗中「極限拉拔力」和「界面粘結強度」的關系，再藉助現場實測的極限拉拔荷載，獲取釘土界面的合理粘結強度參數，對拉拔試驗進行數值模擬分析，驗證了模擬模型中界面單元的可靠性和精度，並標定了數值試驗中土釘的破壞模態。分享友人