弦張力 的英文怎麼說
中文拼音 [xiánzhānglì]
弦張力
英文
string te ion-
Witten ' s open string field theory formulate the interaction of bosonic open strings in the language of noncommutative geometry. compactification of matrix theory on the noncommutative torus was argued to correspond to supergravity with constant background three form tensor field. more generally, it has been realised that noncommutative gauge theory arises in the worldvolume theory on d - brane in the presence of a constant background b field in string theory
Witten的開弦場論用非對易幾何描述了玻色開弦的相互作用；在非對易torus上的矩陣理論的緊化對應于帶有常數三形式張量場的超引力；更為普遍的，非對易規范理論可以自然地產生在帶有常數b背景場的三維d - brane上。Vibrating wire resonant wire tensiometer
振弦式張力計This paper presents the displacement solution to mine elevator viscoelastic vibrating equations and the kinetic tension calculation method, discusses kinetic tension characteristics under rectangular, ladder shaped, sinusoidal and parabolic acceleration curves, provides ways to limit or even avoid lifting rope viscoelastic vibration
摘要給出了礦井提升機粘彈性振動方程的位移解及動張力的計算方法，研究了採用矩形、梯形、正弦形、拋物線形加速度時銅線繩的動張力特性，給出了限制和消除提升鋼絲繩粘彈性振動的方法。The force control of suspension bridge anchorage cable is the main contents which will be researched. according to the character of suspen - sion bridge anchorage, three questions is solved in this paper on the basis of the construction control experience of the highway bridge of yichang yanzhi river. firstly, an effective method of cable force control is presented in this paper, which has settled the puzzle of cable force accurate operate through fixing a pressure transducer at the behind of the hydraulic jack. secondly, an exactitude calculation model is founded in this paper. in addition the influence of boundary condition, sag, inclination, flexural rigidity and environment temperature to the cable vibration frequency which make the frequency method could be used to the measurement of cable force. in the end of this paper, a control system of anchorage cable force is developed on the basis of the above research. this system is very steady, credible, high precision and convenient. it is a new and credible method to be used to the force control of sus - pension bridge anchorage cable. in this paper, the conundrum of cable force control has been solved. the fruits are very useful to the development of inland suspension bridge
提出了一種有效可行的錨跨張力控制方法，即通過在油壓千斤頂后加壓力傳感器，並利用單片機技術進行數據採集，解決了懸索橋錨跨索股初張力精確控制的難題；建立了錨跨索股索力的精確計算模型，分析了索股的邊界條件、斜度、垂度、抗彎剛度及環境溫度對索股頻率的影響，解決了弦振法在大跨徑懸索橋索力測試中的應用問題；在上述研究成果的基礎上，研製出了錨跨張力控制系統，該系統具有穩定可靠，精度高，使用方便等特點，它的投入使用將為我國今後大跨徑懸索橋錨跨張力控制提供一種全新的、可靠的手段。Construction of ultra - large span prestressed string truss structure
超大跨度預應力張弦桁架結構施工The paper presented a large annular cantilever beam string stadium roof structure using the theory of beam string structure. the stadium roof structure is a novel structure that is reasonable in bearing force by using the character of the tendon and beam fully. the struts in the structure avoided enduring big moment, moreover the pre - stress upper chord tendon and the annular beam work together to resist upward and downward load, as embody the structure ' s artifice and wonderful space mechanical property
本文利用張弦梁原理，給出了一種大型環狀懸臂型張弦梁挑蓬結構，該種體育場挑蓬結構新穎，充分利用了拉索和立體桁架受力的特點，使得結構受力更加合理，避免了柱子承受較大的彎矩，上弦索的預張力和圈樑使結構共同作用抵抗上下荷載，更體現了結構的巧妙和良好的空間受力性能。For construction control, its characteristics in initial state and load state are compared in this paper
通過比較在初始態和荷載態下張弦空間桁架的受力性能，為進一步的施工控製做準備。These musical notes could be said to be excitation modes of that guitar string under tension
這些音符，可以說是吉他弦在張力下的振動模式。The pre - stressed arch truss string structure is one of the new pre - stress steel structure styles, because it possessed of rational mechanical feature, it has been used in many national and foreign engineering practices
預應力張弦拱桁架結構是一種新型的預應力鋼結構形式，由於其受力合理的特點在國內外工程實踐中得到了較多應用。Vibrating wire resonant wire tension transducer
振弦式張力傳感器This paper analyses multi - stage pre - stressing and different parameters produce the impacts to static and dynamical behavior of the structure by theoretical calculation and experimental research. the conclusion can provide reference to static and seismic design of arch truss string structure. the main issues in the paper are : the multi - stage pre - stressing loading experiment is studied in this paper
本文通過理論計算和試驗研究分析了多次張拉預應力、參數設置對張弦拱桁架結構靜力、動力性能的影響，主要完成了以下幾方面的工作:進行了模擬施工過程中的多次預應力加載試驗。Research on prestress stretching control of a large - span truss string structure
大跨度張弦桁架預應力張拉控制研究The experiment results and calculation results are compared too ; the conclusion that arch truss string structure can be applied in multi - stage pre - stressing construction is achieved
得出張弦拱桁架結構隨多次加載步驟的內力、位移變化曲線。計算與試驗結果較為吻合。Through the dynamic character analysis of the large annular cantilever beam string stadium roof structure, it was obtained that the stiffness of the structure was between the stiff structure and flexible structure and the frequencies were dense, vertical vibration was dominant and then the string beam ' s lateral vibration and torsion vibration
通過對大型環狀懸臂型張弦梁挑蓬結構動力特性分析表明，該結構的剛度介於剛性結構與柔性結構之間，頻譜比較密集，以豎向振動為主，同時伴有張弦梁側向振動和扭轉振動。Beam string structure needs determine the initial geometry in zero state and initial prestressing force distribute geometry before analysing. this text pointed out the difference from determining the shape of bss to form - finding or force - finding of membrane structure
張弦梁在受力分析前需要確定其零狀態放樣幾何及初始預應力分佈。本文論述了張弦梁結構的形狀確定與膜結構的找形或找力分析的區別。A leather loop that slides to change the tension on the cord of a drum
滑動皮環通過滑動以改變鼓弦張力的皮環Then we also study the effect of string on the dynamical characteristic under the symmetric load and not under the symmetric load as the prestressing is the key making beam string structure the balanceatie system, having large rigidity and embodying the superiority of dynamical characteristic of this structure, this paper studies and conceives how to deteimine the number of the prestressing in each stage of construction and through comparing between the plan of onetime and repeated pulling construction choose the suitable pulling construction plan
並且本文還研究了在對稱荷載和不對稱荷載兩種工況下，結構的受力性能隨豎向撐桿數目、結構垂跨比以及下弦索預應力等參數改變時的變化情況，總結出該結構受力方面的特徵，為實際工程設計提供依據。鑒于預應力是使張弦梁結構形成自平衡體系、具備較大剛度和體現結構性能優勢的關鍵，本文研究和探討了結構施工各階段該預應力大小的確定方法，通過一次張拉與二次張拉方案各項指標的比較，選擇適當的預應力張拉施工方案。分享友人