lag element 中文意思是什麼
lag element
解釋
滯后元件-
The plexiglass model test is carried out by two selective shape, the stress of each test operating loads was obtained in order to validate the correctness of the finite element modeling. in this paper, a regularity of shear lag effect of main sections in two kinds of box girder is given. as the foresight project of double - level - driveway continuous box girder, this research fully utilizes the space of box girder structure and flexural and torsional properties of high - depth box girder, which have innovative significance and applied foregroundin engineering
對所選擇的結構形式進行縮尺有機玻璃模型試驗，得到實腹連續箱梁和空腹箱梁在各種試驗工況荷載下的應力，通過換算分析，驗證了本文所建立的有限元模型的準確性，由此得到兩種箱梁各主要斷面剪力滯效應的變化規律。 -
Modeling the general solid web continuous box girder and opening - in - web ( open web ) continuous box girder by ansys finite element modeling tool, node stress of governing section and corresponding shear lag values are analyzed. the solution is validated by comparing with variational results and modeling test values. based on the model, the section shear lag induced by dead load, prestress tendons and car loads under the most unfavorable condition and lateral symmetry are also approached. the influence of shear lag effect in double - level continuous box girder is considered with opening - in - web and the web location. the analysis indicates that double - level - load arouses less shear lag effect than one - level - load. when self - weight and prestressed tendons act on together, the shear lag effect on box girder take on a evidently change
基於所建立的有限元模型，本文分別對實腹和腹板開孔兩種箱梁在恆載、車載、預應力荷載作用時，各主要截面的剪力滯效應進行分析，通過施加縱向最不利的和橫向對稱的車輛荷載，研究實腹連續箱梁和空腹連續箱梁在承受雙層荷載和單層荷載時引起的剪力滯效應，並考慮腹板開孔及開孔位置對于連續箱梁剪力滯效應的影響。分析表明，雙層車載對于箱梁引起的剪力滯系數比單層車載的影響要小，對于箱梁中存在引起的剪力滯后現象有一定的改善作用。 -
The main topic of this dissertation was the management element allocation of agricultural enterprises ( meaae ) from the theoretical study and empirical study, and put forward the allocation system, which included the strategy decision - making institution of agricultural enterprises, property right institution, the allocation institution of human resources, optimized market institution, law, investment and financing institution, the function change of government under the background of changing market at home and abroad after china " entry to wto. the dissertation analyses the problems of lower allocation efficiency in agricultural operation such as : lower liquidity of management element, the separate management, small - lot production, the influence of the new agricultural management element to agricultural economy, the lag of allocated system and model for agricultural enterprises management element based on the producing ability and economic base that were formed during twenty years of agricultural reform and d evelopment.
本文以我國加入世界貿易組織后引發的國內外市場環境變化為研究背景，立足於我國農業改革發展二十多年形成的生產能力和經濟基礎，針對我國農業經營中存在的經營要素缺乏必要流動、經營要素分散、細碎化配置等引起低效率配置問題，以及新型農業經營要素對農業經濟的影響和農業企業經營要素配置機制、模式等研究嚴重滯后的現狀，從理論和實證兩方面系統研究了不同類型農業企業經營要素配置制度，提出了以農業企業戰略決策制度、產權制度和人力資源配置制度為主要內容，配套優化市場制度、法律制度、投融資制度及政府職能轉換等外部環境的農業企業經營要素配置制度體系。 -
The results of numerical simulations and analytical solution show good accordance, except in the region near the fiber ends, where the shear - lag approach causes considerable discrepancy. next, to overcome the unrealistic assumption of perfect bonding, augmented - lagrange contact algorithm, element " birth - death " and fem are combined in the study of the partial debonding between fiber and matrix under pull out forces
然而完全粘結的假設過于理想，與實際應用相差較大，因此，本論文將有限元法，接觸演算法和單元生死法結合起來，研究較大抽拔力作用下，纖維與基體之間發生的逐步脫粘的過程，所得到的抽拔力的變化結果，與試驗數據比較，較為一致。 -
To give more information about the shear lag phenomena in the short leg walls, a computer program of finite element analysis is compiled
在此基礎上，論文進一步研究了剪滯效應對短肢剪力墻工作性能的影響。 -
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。 -
Furthermore, combining with the experiment of yibin zhongba jinshajiang cable - stayed bridge concrete model, this thesis using finite element method studies shear lag effect of the cable - stayed bridge with n cross section and offers suggestion to the project
此外，本文結合宜賓中壩金沙江斜拉橋模型實驗，利用有限元程序和模型實驗方法，研究雙主肋形截面斜拉橋的剪力滯效應，對雙主肋截面斜拉橋的設計和施工提供一定的參考。 -
This model is formulated as a non - linear state - space representation of helicopter flight dynamics, incorporating with blade element unsteady aerodynamics, a finite state dynamic inflow wake model, and flapping / lead - lag blade dynamic model. the formulation of the coupled rotor and fuselage equations enables the use of common solution techniques for trim and linearization in arbitrary steady flight condition as well as control response calculations
本項研究針對新機研製過程必須解決的品質評定、飛控系統設計等問題，按照ads - 33軍用品質規范的要求，建立了一個較完整的直升機非線性的、具有狀態空間表達形式的飛行動力學模型，進行了模型驗證工作，並以某樣例直升機為例，計算了ads - 33品質規范（ 3 -
6 ) the thermo - mechanical behaviors of sma fiber reinforced smart structures with damages have been analyzed by utilizing the shear lag model and variational principle. mathematical expressions on meso - displacement field, stress - strain field of typical element with damages have been presented, and a failure criterion of interface between sma wires and base material is established. a geometric characterization on the failure criterion has also been made via an example
6 ）運用剪滯模型和變分原理，對含損傷sma增強智能結構的熱、力學行為進行了分析，給出了含損傷典型單元體的細觀位移場、應力應變場的數學描述，建立了sma增強智能結構界面的失效判據，並通過算例對失效判據進行了直觀的幾何描述。
分享友人