finite deflection 中文意思是什麼

finite deflection 解釋
有限撓度，有限變位
  • finite : adj. 有限的；【語法】限定的；【數學】有窮的，有盡的。n. 〈the finite〉 有限（性）； 〈集合詞〉有限物。adv. -ly ,-ness n.
  1. Third, on the base of expatiating on experimental research method and theoretical research method of joints, the paper points out two kinds of valid methods, which are used to analyze the tube joints stress of dendriform structure by making use of semi - analytical method and inelastic large deflection finite element analysis method, confirms to apply the evaporative pattern casting process as the facture method of dendriform structure cast joints, and detailed dissertates the casting theory, casting process, generation cause and prevention measure of casting flaws, heat treatment method and inspection standard about cast steel joints

    然後在闡述樹狀結構節點實驗研究方法和理論研究方法的基礎上，提出了利用半解析法和彈塑性大撓度有限元法兩種有效分析樹狀結構管節點應力的方法，並給出兩種方法的詳細表達式及它們各自的優缺點。通過對鑄鋼件常見製作方法的介紹，確定了採用消失模法作為樹狀結構鑄鋼節點的製作方法，並詳細論述了用消失模法製作鑄鋼節點的鑄造原理、鑄造工藝、鑄造缺陷產生的原因及防治措施、鑄鋼節點的熱處理方法以及檢驗標準。
  2. First, using strip - partitoning method and programming in matlab language, the numerical caculations of the relation curve between moment and curvature are done for the beams strengthened with non - prestressed and pretressed cfrp sheets, base on the assumption of plane section, non - bonding slip and non - peeled destroy. secondly, nolinear finite elemeant analysis by ansys are done for the beams strengthened with prestressed cfrp sheets base on the three assumptions before mentioned, the analysis are all done for the relation curve between load and displacement, the distribution of material stress, the distribution of cracks. lastly, calculation formula of flexural capacity and deflection are proposed

    ）的全過程關系曲線。其次基於上面的三個假定，選擇合理的本構關系，利用ansys通用有限元分析程序對預應力碳纖維布加固梁進行非線性有限元分析，分析了加固梁的荷載-撓度關系、材料的應力情況、裂縫的分佈情況等。最後提出了承載力計算公式和正常使用狀態下撓度計算公式。
  3. Also, the thesis calculate and analysis the transverse deflection of steel box girder deeply in multiple factors. firstly, the article introduced the calculative methods and theory of local stress and strain of bridge structure. then program software system of finite element method was introduced. after that, the influential factors to the calculatial result and their values were analysed and suggested

    本文首先介紹了橋梁結構局部應力應變計算理論和方法，對有限元計算程序進行了介紹，然後分析了縱橫隔板設置、梁高及梁寬變化等因素對鋼箱梁橋面板在恆載作用下的橫向撓度的影響，並將這些計算結果進行對照分析，從而找出了影響橋面板橫向撓度的主要影響因素，並得出了相應的數值可供工程實踐參考。
  4. Non - linear finite element analysis of rubber layer bonded between two rigid spheres has been performed for rubber ’ s characteristic of large deflection and nearly incompressibility. the relationships between stiffness and deformation have been gained when large tensile deformations are imposed. the effects of different poisson ’ s ratios of rubber matericals on the stiffness and stresses of rubber layer have

    針對橡膠的大變形及接近不可壓縮的特點，對工程中常用的橡膠-剛球支座進行非線性有限元分析，了解了支座的剛度和應力的變化情況以及泊松比對兩者的影響，得出的支座受軸向拉伸時的剛度與軸向變形關系。
  5. ( 3 ) the deflection upwards of simple supported beam is calculated by the means of unites elastic and plastic analysis into finite - element theory

    （ 3 ）利用混凝土的彈性徐變計算理論對預應力混凝土簡支t梁的起拱度進行了編程計算。
  6. A transparent model is used to make the deflection jet board grounded on the inhere enlarged dimensions. the finished experiments are conducted to catch the flow rate directions and the situation of cavitation using a high - speed video cameras. in this paper, the finite element analysis and visualiation research of servo valve prestage jet flow field are carried out, which establish the theoretical foundation for mathematical model of servo valve prestage and the whole mathematical model of hydraulic servo valve

    在對射流前置級驅動的伺服閥射流流場數值模擬的基礎上，用有機玻璃在偏導射流板原始尺寸的基礎上進行了擴大，製作了透明的偏導射流板，運用高速攝像機、液壓泵站等組成了可視化實驗系統，對射流流場的流速方向、渦流、氣穴等現象進行了多方位的觀測，並通過對接收管接收壓力的測試，對流場分析結果進行了驗證。
  7. The reduction factors derived from curve fitting based on calculation results by the finite element program ( ansys ) considering all kinds of damages such as cutouts, corrosion, cracks, denting, initial deflection and residual stress are introduced to modify the effective width of perfect panel in the present paper

    本文考慮板中可能存在孔洞、腐蝕、裂縫、局部撞損和初始焊接變形或殘余應力等損傷和初始缺陷，對不同的損傷形式用有限元程序（ ansys ）進行大量的計算，通過曲線擬合的方法引入折減系數對完好板格的有效寬度進行修正。
  8. Regard yield function as temperature and plastic strain ' s function, the deflection of simply - supported slabs under fire are analyses by coordinate finite element. the computing results show in good agreement with the results of tests. it is demonstrated that the method and the computer programs are reliable

    理論分析主要是採用二維有限元分析了構件截面溫度場；採用拖帶坐標描述法的有限元格式，在考慮了在時間步內屈服面是溫度和塑性的函數基礎上，分析了簡支板在火災作用下的變形規律，所得結果與試驗吻合較好。
  9. In the procedure, the column is first divided into a finite number of small segments in equal length. the deflection - curvature relation of each segment is determined using the finite - difference method. the final nonlinear algebraic equations are then obtained by means of the equilibrium condition for each segment

    運用這種方法，先將長柱離散成若干等長的柱段，利用差分方法求得各柱段截面上的撓度與曲率的關系，再根據各截面上外力與抵抗力的平衡條件，得到一組關于荷載與變形關系的非線性代數方程組；本文對該方程組採用載荷增量法進行迭代求解。
  10. This paper, in allusion to damage of expansion joint of bridge, introduces a sort of new structure of jointless device - semi - integral abutment jointless bridge, and establishes model of general structure finite element of this bridge, and in details analyses its qualities of stress. the model considers the interaction of superstructure - substructure - soil. resistance of the soil behind abutment adopts still soil pressure and elastic resistance when the temperature rising, but active soil pressure when dropping. analysis of qualities stress of bridge includes of action of dead load, car load, temperature load of season character. taking an 100m length pc semi - integral abutment jointless bridge as instance, the paper establishes the model of plane frame by applying large common software - anasys, and analyses it by elastane and large deformation to imitate character of stress and deformation of general bridge. at the same time corresponding models of finite element of joint bridge and integral abutment bridge are established, and unique stress and performance of structure of semi - integral abutment jointless bridge are researched by comparing and analysing character of three different models under same loading, and controlling factor of design and constitution are generalized. in conclusion, for semi - integral abutment jointless bridge, on one hand shear, moment and deflection of the main beam and axis force of substructure are approximate with that of joint bridge, and integral stifmess of structure is increased and damage of expansion joint is eliminated, on the other hand there is axis force in main beam, shear and moment of substructure are bigger than that of joint bridge. in all this type of jointless bridge has rational stress and is worth of application and popularization

    半整體式橋臺無縫橋梁計算模型考慮了上部結構-下部結構-土的共同作用；臺後土抗力升溫時採用靜止土壓力加彈性土抗力，降溫時採用主動土壓力；分析橋梁受力性能時考慮了結構自重、車輛荷載和季節性溫變荷載的作用。以一座橋長100mpc半整體式橋臺無縫橋梁為實例，採用大型通用軟體ansys建立平面框架模型，進行彈性、大變形分析，模擬全橋受力和變形特點；同時建立與此對應的有伸縮縫橋梁和整體式橋臺無縫橋梁有限元模型，通過三種橋型同步加載對比分析，研究半整體式橋臺無縫橋梁獨特的受力特點和結構性能，總結其設計控制因素和構造要求。通過本文研究知：半整體式橋臺無縫橋梁主梁的剪力、彎矩、撓度和下部結構的軸力與梁式橋相近，結構整體剛度增大，併除去了伸縮縫病害；但主梁增加了軸力，下部結構剪力、彎矩較梁式橋大；綜合分析是一種受力合理有實踐和推廣價值的橋型。
  11. Parameter analysis, 3d nonlinear finite element program and experimental study are carried out to discuss the prestressing effects in terms of ultimate flexural strength, deflection, cracking moment, the redistribution of internal force, the stress increment of prestressed tendons, and the slip at the interface of prestressed steel - concrete composite continuous beams

    本文通過參數分析、 ansys三維有限元非線性分析、模型試驗等研究方法，著重探討了抗彎承載力、撓度變形、開裂彎矩、內力重分佈、預應力筋應力增量、組合界面滑移等方面的預加力效應。
  12. Through comparing and analyzing of bearing capacity, development of crack and strain of reinforced, the results show that the load - deflection plots f or specimens from the finite element analysis agree well with the experimental data, and choosing the rightful stress - strain relationship, utilizing ansys program, the test process can be well simulated. at the same time, making used of the program, the traditional shear wall is analyzed. it shows that comparing with the traditional shear wall, the hollow shear wall ' s cracking load drop 16 %, yield load and failure load drop 13 %, stiffness drop 13 % ~ 22 %

    其次在試驗的基礎上，將試驗手段、有限元數值模擬方法和理論分析結合起來，利用有限元程序ansys對其中的兩片墻板進行非線性有限元分析，並對前後的承載性能，裂縫發展、鋼筋應變進行了比較和分析，結果表明有限元節點模型分析的荷載-位移曲線和試驗測得數據符合良好，選用合理的材料本構模型，利用ansys可以較好的模擬試驗過程；同時利用有限元模型對比分析了普通剪力墻和空心剪力墻，空心剪力墻與普通剪力墻對比，其開裂荷載下降16 ，屈服荷載、極限荷載下降13 ，剛度下降13 22 ，開裂至屈服、屈服至極限荷載階段的剛度衰減規律與普通剪力墻基本一致，空心剪力墻的後期剛度比較穩定。
  13. Two methods were compared with the finite element method and experiment. it proved that method based on large deflection was reasonable and effective. it can provide initial parameters for the design of sma actuator

    與相關研究中採用的將撓度曲線假設為圓弧的方法進行了對比，通過有限元方法和實驗進行了驗證，結果表明，基於大撓度理論的研究方法更為合理有效，並且這種方法還可以為sma驅動器的設計提供初始參數。
  14. 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。
  15. The increment - iteration solution strategy is adopted in the nonlinear finite element analysis. arc - length method and the incremental plastic reversibility procedure are used to find the complete load - deflection curve and deal with elastic unloading occurring in elasto - plastic analysis

    有限元分析中採用增量?迭代方法，結合弧長法和塑性增量可逆的假定，可以計算出完整的荷載位移曲線，並考慮彈塑性問題中可能出現的彈性卸載問題。
  16. J. melan proposed the deflection theory for analyzing large - spanned suspension bridge early as in 1888. the finite element theory has been so advanced today and has been widely applied in analyzing suspension bridges

    J . melan早在1888年就提出了大跨度懸索橋的撓度理論，空間有限元理論也在七十年代中期趨于成熟並廣泛應用於大跨度懸索橋的分析。
  17. Nonlinear finite element analysis of deflection of reinforced concrete two - way slabs

    鋼筋混凝土雙向板的非線性撓度分析
  18. Observing the mechanics and effect of the new strengthening method with test and finite element method is supposed to offer a guide for technology and become valuable in theory and practice. both compression test, including four reinforced and three control specimens, and shear - compression test, including nineteen reinforced and four control specimens are being studied in this paper. the research on the curves of load - strain, load - deflection and hysteretic shows that the transverse translation of the reinforced columns is well controlled with an upgrading of both ductility and ultimate bearing capacity ( ubc )

    本文對4根鋼絲網外噴高強砂漿加固鋼筋混凝土柱和3根對比鋼筋混凝土柱進行了軸壓試驗研究，並對19根加固鋼筋混凝土柱和4根對比鋼筋混凝土柱進行了剪壓試驗研究；通過對試件荷載-應變曲線、荷載-撓度曲線和滯回曲線等的研究表明，採用該加固方法能有效的約束柱子橫向變形，並對提高鋼筋混凝土柱的極限承載力和延性有明顯的效果；同時根據理論及加固機理分析提出了適應於此加固方法的軸壓極限承載力計算公式。
  19. The inelastic finite element solution considering both large - deflection and plastic extension is used to analyze eccentric - loading columns in this paper. the stability capacity of different slendemess ration and eccentricity are calculated, the residual stresses and their influence upon the steel eccentric - loading columns are emphasizedly discussed, at the same time ten steel columns were achieved

    本文採用大變形和塑性擴展的兩重非線性有限元方法進行偏心受壓柱子的全過程模擬，分析不同的長細比、不同的偏心率情況下柱子的穩定性能，並著重討論殘余應力對柱子承載能力的影響，完成了10根試件的試驗。
  20. In this thesis a new numerical method - the finite volume method is developed to achieve the static and dynamic large - deflection response analysis for suspension cables. the finite - volume division scheme is first established along the length of the cable and the deformation of each volume is defined using the common engineering strain concept. based on this strain definition the strain energy of the cable is determined

    首先建立了懸索沿索長方向的有限體積離散格式，在變形后的構形上按工程方法求得了應變，並進一步得到了應變能和動能的計算式；再根據哈密頓原理導出了懸索大撓度振動的有限體積離散方程，推出了索的整體節點力向量、質量矩陣和切線剛度矩陣。
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