有效模量 的英文怎麼說
中文拼音 [yǒuxiàomóliáng]
有效模量
英文
effective modulus-
The calculation modes of the coefficient of shrinkage and creep of the bulgy core concrete in steel tube are discussed. based on a few reasonable hypotheses and the stress - strain relation of concrete acquired by the " adjusting valid modulus depending on load time " method, a compact formula is reasoned out, which is applied to calculate the equivalent elastic modulus of the bulgy core concrete considering the affection of shrinkage and creep. so, the analysis of the affection on cfst arch bridge by shrinkage and creep can be progressed by pole - girder fem, further more, the analysis precision is quite high
本文還對核心膨脹混凝土特殊的收縮、徐變系數計算模式展開了探討，在合理的假設前提下，採用「齡期調整的有效模量法」得到的混凝土的本構關系，推導出鋼管內核心混凝土在考慮徐變影響后的等效彈性模量計算公式，並以此為基礎採用桿系有限元方法來對鋼管混凝土拱橋進行較高精度的收縮徐變分析。This paper shows that the functional mapping provides a useful quantitative and testable framework for assessing the interplay between gene actions / interactions and developmental patterns
筆者提出的函數作圖策略將提供一個研究基因作用及互作與發育模式之間有效的量化檢測平臺。It is proved that the system ' s structure model is correct, the database model is proper and effective, and the result is accurate by building up and managing one aircraft ' s whole mass properties database
通過對已有飛機型號完整的質量特性數據庫的建立和管理，表明系統的結構模型是正確的，數據庫模型合理有效，質量特性計算準確、快速。In this paper, the subband structure in the inversion layer is constructed by solving the self - consistent schr ? dinger equation, thus the carrier effective mass and scattering rate can be obtained. furthermore, taking account for the carrier density in each subband, we establish carrier mobility model in strained - si mosfet
本文通過求解自洽薛定諤方程，確定了應變硅mosfet反型層的子能帶結構，在此基礎上經進一步計算得到子能帶內載流子的有效質量和散射幾率，綜合考慮各子能帶上的載流子的濃度分佈，建立了應變硅mosfet載流子遷移率的解析模型。With the simulated results of the high resolution of space - time, from the aspects of thermodynamic, dynamical, moist available energy and moist potential vorticity, the direct effect mesoscale system was analyzed to this weather process, including mesoscale low level jet, mesoscale vortex etc. meanwhile, its features and physical mechanism of the formation and development are further discussed to seek for some basis for deeper research and storm rainfall forecast
運用高時空解析度的模式結果，從熱力、動力結構、濕有效能量和濕位渦等多個角度，著重分析討論了對這次天氣過程有直接影響的低空急流、中尺度低渦等中尺度系統，探討了影響這次天氣過程的中尺度系統的發生、發展特徵和物理機制，試圖為更進一步的研究和暴雨預報提供一些依據。Thereafter, the fractal dimension value of cracks distribution was presented as an effective index to appraise the corrosion level. relations between fractal dimension and rebar corrosion ratio, concrete deterioration factor and strength of the member were studied respectively. fractal nn model was also built up to predict the ultimate load bearing capacity of crc members obtained from the field corroded structures, good results are achieved, which could provide an applicable method to evaluate the durability of crc members
揭示出受腐蝕鋼筋混凝土構件在荷載作用下表面裂縫分佈服從統計意義上的分形，並對其進行了分形描述；提出以裂縫分形維數作為受腐蝕程度的有效衡量指標，首次實現了構件受腐蝕程度的定量描述；建立了裂縫分形維數與鋼筋銹蝕率、混凝土劣化系數、構件承載力之間的定量關系，並建立了分形神經網路模型對實際受腐蝕鋼筋混凝土構件進行了極限承載力的預測，取得了較好的預測效果。The creep data of frp jacket were obtained in the test. 3. the analytical studies were carried out using the age - adjusted effective modulus method for creep of concrete, combined with the findley ’ s power law
3 .採用齡期調整有效模量法（ aemm ）計算混凝土徐變，結合findley模型計算frp徐變，建立了損傷加固柱的徐變計算模型。Based on the effective mass theory and critical state model, an anisotropic theory of critical current and ac losses for single hts tape and tape stacks were established. analytical formulae were presented to calculate critical currents and ac losses with an arbitrary angle between the wide side of hts tape and the direction of ac or dc applied fields. from the anisotropic theory of ac losses of hts sample, a numerical model to calculate ac losses of hts coil was developed
基於臨界態模型與高溫超導體的有效質量理論，建立了高溫超導帶材及並聯堆疊帶材的交流損耗與臨界電流的各向異性理論模型；給出了高溫超導帶材的交流損耗及臨界電流隨（交、直流）背景磁場與超導帶面夾角變化規律的理論公式；依據所建立的高溫超導短樣帶材的各向異性理論公式，給出了高溫超導線圈交流損耗的數值計算模型；並利用該模型，計算了高溫超導雙餅線圈的交流損耗；並與實驗測量結果進行了比較分析。The effective stiffness are compared with the ones by nozaki for n = 4. numerical results show that the nature of the imperfect interface has significant effect on stiffness of a convex polygon - shaped fibers composites
並以正四邊形纖維橫截面作為算例，將所得有效模量與nozaki結果比較，數值結果表明界面的非完美性質對凸多邊形纖維增強復合材料的有效性能有明顯影響。Prediction of the effective modulus for fiber reinforced composite
纖維增強復合材料的有效模量預測Determination of the effective
法求解復合泡沫塑料的有效模量Finally, the mori - tanaka estimate is used to evaluate the effective moduli of polygon - shaped fibers composites having slightly weakened interface
最後，採用mori - tanaka理論計算非完美界面條件下纖維增強復合材料的有效模量，其中纖維的橫截面為凸多邊形。The method was proposed to compute the rock modulus when one kind of pore fluid changed to another, and to identify the pore fluids by the use of poroelastic modulus
提出孔隙流體變化時巖石有效模量的計算，及利用孔隙彈性模量辨別儲層中不同流體類型的計算方法。Using the time dependent finite element method of age - adjusted effective modulus, the author calculates the deflection which is induced by shrinkage and creep in a continuous rigid frame bridge of urban rail transit, and further compares with the site test result, the conclusion is very meaningful
摘要採用按齡期調整有效模量的時變分析有限元法，對城市軌道交通預應力混凝土連續剛構橋的收縮徐變變形進行了理論計算，並與實測結果進行了對比分析，結果表明理論計算是可信的。Abstract : this paper studies several main codes of prestressed concrete in the world and analyses their methods to calculate the long - term stress losses. all these methods are divided into two groups. the author introduces the theory of the first group ? ? “ the age - adjusted effective modulus method ( aemm ) ” and analyses how to determine the modulus used in these methods. then, as example, two prestressed concrete beams are calculated to compare the result of different methods. at last, some recommendations for the calculation of long - term stress losses are given to improve the present code of our country
文摘:定性分析了國內外幾本主要規范、規程和建議中關于預應力長期損失的計算方法，將其分為兩類，推導了第一類方法的理論基礎? ?齡期調整的有效模量法，詳細分析了第一類計算方法中各系數的取值，並以兩根預應力混凝土梁為例對各方法的計算結果進行了定量分析，最後對我國預應力長期損失計算方法提出了改進建議。This thesis has made the contrast test of shrink and creep for plain concrete and concrete filled steel tubes on the basis of long term in - door test, obtains the principles of shrink - creep of concrete filled steel tube, simulates the test data, analyses and contrasts the coefficient of shrink and creep, thus offers reference for the calculation mode of creep, furthermore by introducing reasonable assuming at the same time, develops the calculation formula of equivalent elastic modulus at the same time, develops the calculation formula of equivalent elastic modulus, adopts common structure analyses procedure ansys to calculate the redistribution of section stress in the steel tube and concrete during operation
本文在長期的室內試驗的基礎上對素混凝土和鋼管混凝土做了收縮和徐變的對比試驗，得出鋼管混凝土的收縮徐變規律，對試驗數據進行了擬合，對鋼管混凝土的收縮和徐變系數進行了分析和比較，從而為鋼管混凝土的徐變計算模式提供參考，同時通過引入合理的假定，並結合由「齡期調整有效模量法」導出的混凝土徐變本構關系，推導出了鋼管核心混凝土考慮徐變影響后的等效彈性模量計算公式，並以此為基礎採用通用結構分析程序ansys對成橋后鋼管和混凝土應力重分佈進行了計算。This paper studies several main codes of prestressed concrete in the world and analyses their methods to calculate the long - term stress losses. all these methods are divided into two groups. the author introduces the theory of the first group ? ? “ the age - adjusted effective modulus method ( aemm ) ” and analyses how to determine the modulus used in these methods. then, as example, two prestressed concrete beams are calculated to compare the result of different methods. at last, some recommendations for the calculation of long - term stress losses are given to improve the present code of our country
定性分析了國內外幾本主要規范、規程和建議中關于預應力長期損失的計算方法，將其分為兩類，推導了第一類方法的理論基礎? ?齡期調整的有效模量法，詳細分析了第一類計算方法中各系數的取值，並以兩根預應力混凝土梁為例對各方法的計算結果進行了定量分析，最後對我國預應力長期損失計算方法提出了改進建議。Var and stress testing model can measure this tail risk, therefore, combined with delta - method, var is the efficient model that can be applied to measure chinese security portfolio market risk
股票收益率呈現出厚尾特性， var及其壓力測試模型能很好的計量投資組合的尾部收益及風險，因而結合了var的方差模型是適合於我國證券投資市場風險計量的有效模型。An significant symbol has been used to determine the technique of 3 - d discontinuities network modeling of rock mass is good or not, which is to check whether the model can reappear the reality situation of rock mass or not, in order to make the 3 - d network model to meet the need of the actual rock engineering, the methods to verify the result of the modeling are required, one of the method to be used is to compare the figures between the section of the numerical model and the sampling window of in - situ model, the second method to be used is verify the data set between the numerical model and field data, only if the verification obtained a good precision, then the model can be considered as a efficiency model, and it can be applied into the actual rock engineering
摘要巖體隨機不連續面三維網路模擬技術成熟與否的一個重要標志就是最終的網路模型是否能夠較真實地再現巖體的實際情況，為了使三維網路模型的結果能夠真正地應用於實際工程，就必須對模擬的結果進行必要的檢驗，檢驗的辦法就是將模擬出的模型剖面圖形與原型測量窗口的圖形進行圖形對比，或者將原型的觀測數據與模型的測試數據進行數據對比，當這種檢驗達到精度時，模擬出的模型為有效模型，可以投入工程實際應用。Thirdly, in this thesis, the influence of concrete creep to the behaviors especially to the nonlinear behaviors of reinforced - concrete box girder has also been studied and the effect of creep on internal force, deformation, ultimate load capacity and shear lag of reinforced concrete box - girder has been included, and the parameter such as loading duration, age of concrete and sustained load are considered
採用按齡期調整的有效模量法本文還編制了箱梁徐變效應分析的有限元程序，分析了混凝土徐變對箱梁的內力、變形、極限承載能力以及剪力滯的影響，並著重分析了持荷時間、加載齡期、持續荷載大小對徐變效應的影響。分享友人