torsional stability 中文意思是什麼
torsional stability
解釋
扭轉穩定性-
Besides, this paper adopts the random finite element method, uses geometric and physical mechanical parameters that are relevant to lining weight of surrounding rock, coefficient of lateral pressure, height or buried depth of vertical loading, elastic resistance coefficients of surrounding rock, elastic modulus of support structure, unit weight of concrete, thickness of the structure as well as torsional strength and compression strength of concrete and etc., as random variables, applies the monte - carlo method to sampling by computer, preliminarily evaluates the reliability of bearing capacity and stability of molded concrete lining of the xuefeng mountain tunnel, and obtains the related displacement of the lining, mean value and variance of internal force, and computed the reliability index of lining structures
此外，本文採用隨機有限元方法，將圍巖容重、側壓力系數、垂直荷載高度或埋深、圍巖的彈性抗力系數、支護結構的彈性模量、混凝土容重、結構的厚度以及混凝土的抗扭與抗壓強度等與襯砌結構有關的幾何與物理力學參數作為隨機變量，應用蒙特卡洛理論進行計算機隨機取樣，對雪峰山隧道模注混凝土襯砌的承載力與穩定性的可靠度進行了初步評估，得出了襯砌的相關位移與內力的均值和方差，並計算出了相應的襯砌結構可靠指標。 -
The instability mechanism of shaft system is analyzed and the concept torsional vibration stability limit is put forward
分析了汽輪發電機組軸系失穩的機理，提出扭振穩定極限的概念。 -
In this paper, the buckling behavior of cold - formed angle members is studied by non - linear finite element method. the influence of the width - thickness ratio of the single cold - formed angle column under axial load is analysed. the criteria of flexural buckling and torsional - flexural buckling for cold - formed egual - leg under axial loads is presented. according the calculating results of the ansys finite element method, the stability - coefficient formulas are simulated for the cold - formed loading single angle members of flexural buckling and torsional - flexural buckling
本文運用非線性有限元法對冷成型單角鋼的穩定性能進行了研究，分析了寬厚比對冷成型單角鋼軸壓桿穩定性能的影響，給出了等邊冷彎角鋼發生彎曲屈曲和彎扭屈曲的判斷條件，根據ansys有限元的計算結果擬合出了冷成型單角鋼軸壓桿在發生彎曲屈曲以及在發生彎扭屈曲時的穩定系數公式，在此基礎上得出了冷成型單角鋼軸壓桿在所有長細比情況下的穩定系數公式。 -
The out - of - plane stability of bending beam, which is made up with 2 beams and loaded by non - directional force, is studied. the bending and torsional deflection differential equation of each beam is established in critical condition. according to compatibility conditions of deformation, the characteristic equation is obtained to calculate out - of - plane stability of the cantilever bending beam
對兩節梁組成的彎曲梁在非保向力作用下的平面外失穩問題進行了研究，通過建立每節梁臨界狀態下彎曲和扭轉變形微分方程，根據桿件變形的邊界條件以及桿件之間的變形協調關系，得出了一端固定一端懸臂的彎曲梁在非保向力作用下平面外失穩的特徵方程。 -
From matching racquets to increasing overall weight, increasing torsional stability, raising the racquet ' s sweetspot or counter - balancing a head - heavy racquet to make it head - light - all levels of players are finding benefit in customizing their racquets ' weight and balance
從職業比賽中選手用的球拍可以看出，他們自己對球拍的改造，提高了球拍重量，從而提高了球拍的擊球穩定性，增大了甜點區域或者使一個頭重的球拍變為頭輕的球拍? ?所有級別的選手都是通過自己改造球拍的重量和平衡而在比賽中受益的。 -
Theory analysis in this paper pointed out that the flexural - torsional buckling is the usual form of t - section steel. so the slenderness ratio of flexural - torsional buckling should be used when people give out the b / t ratio by the " equal stability " conception. initial stress, defects and tangent modulus are include in the deduce of the paper to get a rational b / t ratio
通過理論分析指出軸心受力剖分t型鋼整體失穩以彎扭屈曲為主，所以在運用「等穩定」方法確定腹板寬厚比限值時應與桿件的扭轉長細比「掛鉤」 ，並以此為出發點考慮殘余應力、初始缺陷，應用切線模量推導出了較為合理的腹板寬厚比限值公式。 -
In this paper, torsional - flexural buckling of single - angle members is researched deeply and systematically by ultimate strength theory and general fem analysis software ansys, and is contrasted with some codes, as a result the simple and practical formulas for stability coefficient are recommended for design purpose
本文採用極限強度理論和通用有限元分析軟體ansys ，系統深入地研究了單角鋼軸心受壓構件的彎扭失穩，並與多本規范進行了對比分析；在此基礎上提出簡單實用的穩定系數計算公式，以便工程設計參考。 -
The methods on the research of torsional vibration stability are summarized and the deficiencies in present research are pointed out
總結了研究軸系扭振穩定性的各種方法，指出目前研究中尚待解決的問題。 -
The applicability of complementary - cluster energy - barrier criterion on researching stability of shaft system torsional vibration is discussed
對互補群群際能量壁壘準則在汽輪發電機組軸系扭振穩定性研究中的適用性進行了探討。
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