有效截面 的英文怎麼說
中文拼音 [yǒuxiàojiémiàn]
有效截面
英文
available crosssection-
Based on basic principles of grillage method, an improved grillage model of wide cantilevers bridge deck is brought forth and its effectiveness is verified after generalizing rules of grillage meshing and sectional characteristic
基於梁格法的基本原理，提出了寬翼緣上部結構分析的改進梁格模型，並總結了梁格單元劃分和截面特性計算的一般方法，最後通過算例驗證了該模型和方法的有效性。Four donor - acceptor conjugated carbazole derivatives for two - photon absorption optics were designed and synthesized. the spectral characteristics and the structure - activity relationship were investigated
摘要設計、合成了四個新的?唑類具有較大雙光子吸收截面的化合物，研究它們的光譜特性，對雙光子吸收的構效關系進行初步探索。It canbe determined the enhancing effect of new steel fiber to shear resistance of beams by the test of tensile strength of steel fiber reinforced concrete, it is important to reduce test cose and increase research efficiency
可以通過鋼纖維混凝土抗拉強度試驗來確定新品種鋼纖維對梁斜截面上混凝土受剪承載力的增強作用，這對于降低試驗成本和提高研究效率具有重要工程價值。The cyclo - hoop effect which steel tubular has exert to the concrete shows the character of heterogeneous in the arch rib section, the same to the axial direction. the paper verifies the change of the material poisson ration and the concrete grade will make the cyclo - hoop effect obvious alteration, the change of the cyclo - hoop effect and the stress redistribution of the section produced by the shrinking and creeping of the concrete and the expensive concrete on the section
在鋼管混凝土拱肋斷面上，鋼管對內填混凝土的環箍效應具有非均勻性，在拱軸方向上環箍效應也呈現非均勻性。驗證了材料的橫向變形系數、混凝土標號等參數的變化將引起環箍效應的明顯改變；混凝土的收縮、徐變和膨脹混凝土的應用導致鋼管混凝土的環箍效應發生變化並使截面的應力發生重分佈；並總結了其變化的基本規律。In this article, considering the character of the one - dimensioned continuum and the cross - section, the varied quotiety of the strain can be presented as the mode function to identify the damage. and inversion of the elastic wave is presented to detect the injures when the area is the variable of the inversion, for the pip usually buried under the earth or enwrapped into the protection make the detection difficulty by the mode of vibrancy. the influence of the area must be considered if the exactness is the pre - requisition
在論文中，考慮到壓力管道的一維性質，提出用應變模態改變變化率的方法對一維的結構進行損傷識別；同時考慮到在實際的工程和現場測試中，壓力管道大多深埋在地下或者有外在的保護膜，不宜進行模態的檢測，所以也考慮利用彈性波的方法對壓力管道的性質參數和截面性質進行反演識別，從而得到我們感興趣的東西，達到損傷識別；一般，在利用彈性波反射方法進行損傷檢測中，不考慮截面效應對彈性波的衰減影響，這就對損傷檢測造成一定的影響，本文考慮截面效應的影響，通過實驗來確定截面效應系數。Conclusion is made that some of the domestic enterprises are basically close to the stork products in mesh, aperture making, aperture section, printing effect ; however, most of the domestic manufacturers have long way to go in tech - density
指出國內的鎳網廠家有少數部分的製造水平無論是目數、開孔率、孔形截面、印花效果等基本上接近斯托克（ stork ）公司產品要求，但仍有大部分廠家產品技術含量有待進一步提高。Because the cross - section of the oversized rib waveguide we fabricated by wet - etching was trapeziform, we analyzed the transmission of oversized rib waveguide by combining effective refractive - index method. the influence of some factors on the optical transmission loss, such as material structure, the height of rib waveguide, and the thickness and refractive index of waveguide layer and up - layer of polymer material, was analyzed
因為濕法腐蝕工藝製作的反脊波導橫截面是梯形狀的，因此論文中採用了一種簡單有效的方法，即有效折射率法，對梯形反脊波導的光傳輸損耗特性進行了分析，同時考慮金屬電極產生熱場對脊波導傳播特性的影響。The research indicated that the airbag volume, vent hole size and gas generate mass flow rate exert dominant influence on the protection effectiveness of the occupants. the paper pointed out that small airbag volume, small vent hole size and low gas generate mass flow will provide the occupants with best protection in the mini - van frontal crash
研究結論表明氣囊體積、氣囊排氣空截面積和氣體發生器類型對氣囊的防護效率有重要影響，並提出對于駕、乘人員安全氣囊系統，小體積氣囊、小排氣孔截面積和高氣流率的發生器的組合將產生最佳防護效果。In the end of this thesis, on the basis of the mathematical model, three segments of trajectory : the vertical turn, the pn guidance and the direct lateral force control in terminal trajectory are simulated. the results show that with the direct lateral force control reduces in terminal trajectory, the miss - distance is reduced and the precision is improved
4 、論文最後根據前面建立的數學模型，對防空導彈垂直轉彎段、比例導引段以及末端直接力控制段進行了模擬計算，結果表明進行末端直接側向力控制可以有效減小攔截目標時的脫靶量，提高命中精度。Based upon virtual displacement method and the updated - lagrangian approach, stiffness matrices for two - dimensional elastic - plastic beam model in large displacement were proposed, in the derivation of which transverse stress was included because it was believed that part of the 2nd order effects of various stresses, which are in equilibrium with each other and with the external loads, will counteract each other and neglecting either part would possibly lead to incorrect results
利用虛位移原理和更新的拉格朗日方法，導出了大位移彈塑性梁單元剛度矩陣的顯式表達式，在剛度矩陣推導中引入了截面內非線性剪應力和橫向應力的影響，剛度矩陣通過了剛體檢驗。之所以要引入橫向應力的影響，是因為本文認為，保持平衡所需的所有應力，它們各自的二階效應會相互抵消，因此忽略其中的任何一項都可能導致不正確的結果。This thesis studies shear lag effect on three representative forms of cable - stayed bridge cross sections by different theoretical methods
本文針對斜拉橋具有代表性的三種截面形式，採用不同理論計算方法對其剪力滯效應進行研究。To meet the demands for large space and flexible compartmentation of buildings, laminated vierendeel trusses are adopted in high - position transfer story structures. first the bearing characteristics are analyzed, in which reasonable stiffness ratio of the upper chord, middle chord, and lower chord is derived. then combined with an actual engineering model ( 1 8 similar ratio ), the static loading and pseudo - dynamic tests of two models for laminated vierendeel truss used in transfer story structures are conducted, in which one model adopts reinforced concrete, and the other adopts prestressed concrete and shape steel concrete. seismic behaviors are analyzed, including inter - story displacement, base shear - displacement skeleton curves, and equivalent viscosity - damping curves. a program is programmed to carry out the elasto - plastic dynamic analysis, and displacement time - history curves of the two models are derived. the test and analysis results show that the laminated vierendeel truss with prestressed concrete and shape steel concrete has excellent seismic behaviors. it can solve the disadvantages of laminated vierendeel trusses used in transfer story structures. finally, some design suggestions are put forward, which can be referenced by similar engineering
為滿足建築物大空間和靈活隔斷要求，在高位轉換層結構中採用迭層空腹桁架結構.首先分析了其受力性能，得出了空腹桁架各構件合理的截面剛度以及布局形式.然後結合一實際工程，進行了兩榀迭層空腹桁架轉換結構模型（ 1 : 8相似比）的豎向荷載下靜力試驗以及擬動力試驗.其中一榀為普通混凝土迭層空腹桁架，另一榀配置了預應力和鋼骨混凝土，對比分析了兩模型的層間位移比、骨架曲線以及等效粘質阻力系數等抗震性能的比較，並進行了彈塑性動力分析.試驗和分析結果表明，配置預應力和型鋼混凝土的迭層空腹桁架轉換結構具有良好的抗震性能，可以成功地解決迭層空腹桁架作為轉換層結構所產生的弊端問題，最後對這類轉換層結構提出了相應的設計建議We use the method of finite element analysis to find the most dangerous section of the rotator. through setting up a model of rotator, calculating the temperature and stress field of rotator, we get the section. then we supervise the section online, calculate the practical fatigue life loss and creep life loss
我們使用有限元分析法，通過建模，計算轉子溫度場、應力場，得到最危險截面，然後對危險截面進行在線監測，計算實際運行中的疲勞壽命損耗和蠕變壽命損耗，為安全經濟運行提供有效監控手段。Etlectlve cross section area of high - strength bolt
高強度螺栓的有效截面積58Ettectlve cross section area of bolt
螺栓有效截面面積57Cast - in - place piles with expanded branches or plates based on common concrete bored piles are a new type of piles foundation which have the specialty of high vertically bearing capacity and have been marked both economic and social benefits. especially in the resist draw load, it indicates a broader application scope. however, because of the poor application of cast - in - place piles in the practices, almost all the experiments are based on modeling experiments
擠擴支盤混凝土灌注樁是近年來工程界有較強生命力的新樁型，該樁型是採用仿生學的方法在原有等截面混凝土灌注樁的基礎上研發成功的，其顯著的特點就是具有較高的單方混凝土承載能力，具有良好的社會與經濟效益。The methods of modificatory lattice cross - section and equivalent circular cfst cross - section for calculating the maximum load of dumbbell cfst columns with eccentric loading were presented in this paper. the ultimate strength of 14 specimens were calculated by the two methods were close to experimental results. finally, the two methods were used to calculate the ultimate strength of arch bridge of zhengzhou yellow river highway
對現有鋼管混凝土啞鈴形構件極限承載力的計算方法進行了分析，在此基礎上，提出了計算鋼管混凝土啞鈴形構件的偏壓極限承載力的修正的格構式截面法和等效截面法，兩種演算法的計算結果與試驗值均吻合較好，最後用這兩種演算法計算了鄭州黃河公路二橋拱肋的極限承載力。The feeder has a small cross - section, compact structure, and the advantage of high transmission efficiency, but also under some pressure in transmission materials, and no jet
該喂料器具有橫截面小、結構緊湊且輸送效率高的優點，並能在一定壓力下進行輸送，物料不反噴。The modeling and simulation describing the dynamic performance of the cylinder are established and the sectional acres of the actuating pneumatic organ are discussed ; after resolving the simulation model by matlab, the cylinder dynamic performance parameter based on time is obtained ; in the end, the influence of inertial load, stroke and valid area on the dynamic performance of the cylinder are discussed
然後針對主要部件? ? ?氣壓作動筒的工作過程，建立了描述作動筒彈射和回收過程的物理模型和數學模型，對其中的氣動元件有效截面積ae展開了討論。利用matlab求解模擬模型，根據程序設計結構編制模擬程序，得到氣缸動特性參數隨時間變化的可視化模擬結果。In the end, the author used fem to analyze the short - period stiffness after rc cellular slab cracking, and presented recommended formulation in respect of short - period stiffness. moreover, with regard to the features of bi - direction cellular slab, the author brought forward the equivalent cross - section stiffness model to calculate the ultimate load - carrying capacity of variable cross - section slab as well as the related reinforcement suggestions and conformation methods
最後本文利用有限元分析了鋼筋混凝土空腹板在開裂后的短期剛度，並給出計算其短期剛度的建議公式；另外針對雙向空腹板的特點，本文提出了對這種變截面板進行承載力計算的「等效截面剛度法」模型，並給出了相關的配筋建議及構造措施。分享友人