elastic cross section 中文意思是什麼
elastic cross section
解釋
彈性反應截面-
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。 -
Applying classical wave theory, a concept of equivalent elastic modulus on propagation speed modification of guided wave through " variable cross - section " of metal bar embeded layer was put forward
摘要運用波動的經典理論，提出了導波在金屬桿嵌入層「變截面」傳播時波速改變的「等效彈性模量」的概念。 -
Studying the stability of elastic rod with varying cross section by wkb asymptotic method
漸近法研究變截面彈性桿的穩定性 -
A further research for the torsion problem of a straight elastic bar with uniform cross section
等截面直桿扭轉問題的進一步研究 -
( 2 ) respectively by elastic theory analyses and methods of structural mechanics, transverse static analytical equations for flexible pipeline rigid pipeline are established whose outcomes are applied in numerical example to compare those with that by finite element method. ( 3 ) considering interaction of filled soil, pipeline and foundation, with an eye to non - linear soil model, in view of the initial geo - stress field and the effects of interface between soil and pipeline, and by finite element method the calculational model and method are built for transverse stress in pipeline. then, by the great finite element analytical software ansys, those outcomes are applied in calculation example of positive buried pipe to educe the distribution of circumjacent soil pressure and stresses on cross section and to compare it with that calculated by conventional ways before those outcomes are applied in engineering case of positive buried pipe with flexible filled materials to confirm distribution of soil pressures after the measure for reduction and to compare it with measurements. as a result, the model set up in this paper is proved to be applicable after all above - mentioned analyses
本文基於彈性理論和有限元原理與方法，分析了上埋式地下管道橫向力學計算方法和性狀並探討了上埋式地下管道的減荷等問題： （ 1 ）在分析現有幾種典型的管道垂直土壓力計算方法的基礎上，探討了影響垂直土壓力的主要因素以及改進的方法； （ 2 ）分別通過彈性理論分析法和結構力學的方法，建立了地下管道柔性圓環和剛性管涵的橫向靜力計算方程，並應用在算例中，把所得結果和有限元方法所得結果進行對比分析； （ 3 ）考慮填土、管道和基礎的共同作用、土體的非線性特性、初始應力場以及土體和管道的接觸面因素的影響，利用有限元的思路，建立了地下管道橫向力學有限元計算模型和方法，並且採用大型有限元分析軟體ansys ，針對上埋式管道工程算例，得出了管周土壓力以及管道橫截面應力的分佈狀況和規律，並和理論值進行對比；針對施加柔性填料的上埋式管道工程實例，得出了減荷后的土壓力分佈，並和實測值進行了對比。 -
Elastic scattering cross section
彈性散射截面 -
The pile is assumed to be vertical, elastic and of uniform cross - section, and the soil is regarded as a linear visco - elastic layer with hysteretic damping
假定樁為豎直彈性等截面體，土為線性粘彈性體，其材料阻尼為滯回阻尼。 -
Regarding the rc beams subjected to concentrated load or even load and braced by bonding steel, an analysis is made on the relevant factors influencing maximum anchorage shear stress of steel sheet. the analysis is based on elastic theory and makes use of the formula for calculating anchorage shear stress of steel sheet. as indicated by the results, the maximum anchorage shear stress not only realtes to such parameters as height of cross section of rc beam and span but also relates to the thickness of adhesive layer, elastic modulus, thickness of steel sheet, and length of steel sheet. the present method will check maximum an chorage shear stress on the end of shear sheet so as to prevent rc beam from local damage. the present results will offer important reference for our country to further perfect bracing design by bonding steel method
在彈性理論的基礎上，利用鋼板錨固剪應力計算公式，對在集中荷載或均布荷載作用下採用粘鋼加固的混凝土梁，分析鋼板錨固最大剪應力的有關影響因數.結果表明，最大錨固剪應力不但和混凝土梁的截面高度、跨度等參數有關，還和粘膠層厚度、彈性模量、鋼板厚度及鋼板長度有關.採用文中方法可以對鋼板端部最大錨固剪應力進行驗算，防止混凝土梁出現局部受拉破壞.研究結果為進一步完善我國粘鋼法加固設計提供重要的參考資料 -
The method of elastic analysis is adopted according to the classification of the cross section
根據截面類型的劃分而採用以換算截面理論為基礎的彈性分析方法。 -
3. wth application of large - scale computational software anasys - dyna, the case of elastic impact to each other of two recta - ngular cross - section rods has been implemented and also compared with theoretical results, which maks good agreement and draws very helpful practical experiences to use some techncal parameters in the program. eventually, the a real - world aircraft windshield shell structure impacted by a flying bird has been simulated through fem numerical computation, and meanime, an engineering predical experimeni of bird sttiking to the windshield in some type of aircraft has been performed
3 、應用大型科學計算程序anasys - dyna ，對彈性體碰撞進行了數值計算驗證並與理論結果對比，獲得了計算參數應用的實踐經驗；在此基礎上，進行了鳥體撞擊飛機風擋結構動力學響應的實際數值計算，與此同時安排了工程鳥體撞擊試驗，並就兩者計算結果給予了細致分析對比，獲得了良好的一致性結論。 -
In consideration of limitations of load transfer method, which cannot take into account its non - axisymmetrical cross - section, the approximate three - dimensional method is proposed based on elastic theory method which was proposed by poulos ( 1968 ). the proposed method can consider its non - axisymmetrical cross - section
考慮到荷載傳遞函數法的缺陷，即不能考慮壁板樁樁身橫截面的非軸對稱性，本文又以poulos （ 1968 ）提出的彈性理論法為基礎，推導出了壁板樁承載特性的近似三維解答。 -
First, the stability of box section beams under pure bending is studied based on two different torsion theories on members with closed cross - section by umansky and gjelsvik in the elastic phase, and the critical moments are obtained. comparisons show that these two different theories give nearly the same critical moments
文章首先對箱形梁進行研究，分別基於umansky約束扭轉理論和gielsvik約束扭轉理論推導了箱形梁在純彎作用下的彈性臨界彎矩，並進行了比較，發現基於gielsvik約束扭轉理論的臨界彎矩具有較好的精度且形式簡單。 -
Elastic wave propagation of a thin helical rod with circular cross section in relaxed state
鬆弛狀態圓截面螺旋細桿的彈性波傳播 -
The calculated double differential cross section of the new model is compared with experimental data and previous scdw calculations with single particle model. the calculated cross sections are larger than those given by previous calculations at backword and forward angles and smaller than those given by previous calculations near the quasi - elastic scattering ( qes ) angle. the agreement with experimental data is much improved
新模型的雙微分截面計算結果與實驗值以及以前採用單粒子殼層模型時的計算結果進行了比較，表明cdfm模型的引入對scdw模型的計算結果有較大的改進，使其在大角度和極小角度區域有所增大，在準彈性散射角附近有所減小，從而能更好地與實驗值相符合。 -
Elastic - plastic dynamic response mechanism of a variable cross - section cantilever beam subjected to step load
階躍載荷作用下變截面懸臂梁的彈塑性響應模式 -
Several typical sites are chosen in this paper in order to investigate the main points of wave function expansion method applied to elastic wave scattering problems. antiplane scattering analytical solution for the alluvial valley of shallow circular - arc cross - section is investigated, which has practical engineering value
本文選擇了幾種典型場地，研究了波函數展開法在求解其中局部場地彈性波散射問題時的要點，對更有工程實際意義的淺圓弧型沉積盆地，研究了其出平面散射解析解答的收斂性和精度。 -
The important meaning of controlling incident wave form for the experiment is take into account, eigen - line method was used to calculate the transmit of the stress wave among the variable cross - section bar. using the elastic wave inversion deductive method the mathematical model was founded, which can be used to calculate the shape of the dam from the incident wave form
考慮控制入射波形對動態試驗的重要意義，本文利用特徵線法對應力波在變截面桿中的傳播進行了數值求解；在此基礎上應用彈性波反演的思想建立了根據入射波形求解彈丸形狀的數學模型，並用試驗對求解結果進行了驗證。 -
( 2 ) the general finite element method ’ s equations on the static elastic - plastic damage evaluation of structures are deduced by using the virtual work principle. then a damage index system suitable to all level damage evaluation is built based on the decline of the resistant stiffness of cross - section, the member ’ s stiffness and the whole stiffness of structures
（ 2 ）應用虛功原理推導了結構彈塑性損傷評估的一般有限元格式，並基於截面抗彎剛度、構件剛度、結構整體剛度的下降建立了適應各層次損傷評估的指標體系。 -
The tower shafts, most of which are hollow and varying in cross section, and altitudinal construction bring trouble to the form work and the stress of strand wire. and the cracks on the crossbeams will be caused by the following - deformation of the bracing structure joints, elastic deformation ， uneven settlement and temperature changes. the additional stress of the base slab and the foundation is caused by the deviation of cable bent tower construction
但大跨度橋梁混凝土索塔施工設備進場及現場管理都比較困難；塔柱多為空心變截面，且為高空作業，給模板工程及預應力張拉帶來一定困難；支撐系統連接的間隙變形、彈性變形、不均勻沉降以及環境溫差可導致橫梁裂縫；索塔施工偏位會引起的承臺和基礎的附加應力，對加勁梁的架設影響大；懸吊結構未完體系（架設時）施工階段的風致振動往往影響到施工的安全和質量；實心塔柱部分體積較大，易產生溫度裂縫。 -
The equilibrium and stability of an elastic rod with circular cross section under the constraint of a cylinder is discussed
摘要討論受圓柱面約束的圓截面彈性桿的平衡與穩定性。
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