first-order shear 中文意思是什麼
first-order shear
解釋
一級剪切-
The three - dimensional analytic model on laminated piezoelectric shells is also studied. the main achievements are summarized as follows : firstly, buckling models for beams and cylindrical shells with arbitrary penetrative delaminations are established based on the first and higher - order shear deformation theory
本文研究工作的重點是建立含內埋脫層的復合材料層合結構的屈曲分析模型，其次是建立壓電層合殼的三維分析模型。 -
The new technique allows first order shear deformation plate theory ( fsdpt ) or classical plate theory ( cpt ) to be used for modeling built - up wing structures, sandwich wing structures or the wing structures which the volume between upper and lower skin is empty or solid with a ' general planform
根據翼面的幾何和結構特點，新技術能夠自主選擇經典板理論（ classicalplatetheory ，簡稱cpt ）或第一階剪切變形板理論（ firstordersheardeformationplatetheory ，簡稱fsdpt ） ，具有模擬空心、實心、夾層和組合等形式的翼面結構及三維建模的能力。 -
The finite element equation for linear and nonlinear panel flutter analysis using the triangular three nodal mindlin element ( min3 ) which considers the first order shear strain in the plate is formulated
（ 3 ）使用三結點三角形mindlin板單元（ min3單元）推導了壁板熱顫振的有限元方程。 -
2 ) the value of base frequency, which is the first order vertical - bending vibration, is bigger in box girder bridges than those of t - beams. it shows that the vibration performance of box girder bridge is better than t - beams. 3 ) when considering the shear deformation of beam, the vibration frequency calculated by is bigger than those not considering the shear deformation
T型梁的基頻為橫向振動，而整體箱梁的基頻為豎向彎曲振動；整體箱梁的一階豎彎振動的頻率比t型梁得到了提高；整體箱梁的動力性能優于t型梁；考慮剪切變形后，梁的自振頻率降低，對于整體箱梁其降低值接近於5 ，在分析時不應忽略。 -
In order to study the direct relation between oil - base drilling fluid performance and cement job quality, a new developed evaluation method ( artificial core method ) was adopted ; the effects of the oil - base drilling fluid system and its main components on the shear cementing strengths of the first and second interfaces in cementing operation were investigated ; and those of the different mix slurry ratios on the gel strength, initial set time, final set time of slurry and the compressive strength of bond cement were examined too
摘要為了研究油基鉆井液性能和固井質量之間的直接關系，採用新建立的評價方法人工巖心法，考察了油基鉆井液體系及其主要組分對固井作業中第一、第二界面剪切膠結強度的影響規律，以及不同混漿比例下對水泥漿膠凝強度、初凝時間、終凝時間和水泥石抗壓強度的影響規律。 -
Then, the program based on complex eigenvalue method was employed to investigate the influence of three parameters on vibration - controlled of cables. final, in term of character of vsd which is strongly dependent on temperature, the method based on lowermost damper of first order vibration - controlled aim at design tiptop temperature and checked at minimum temperature is presented, in which available shear area of damper is calculated
最後，在學習國內外研究成果的基礎上，根據粘性剪切型阻尼器的溫度依賴性強的特點，提出在設計最高溫度下，以滿足一階制振目標的阻尼值下限為標準設計阻尼器插板的有效剪切面積，最後在設計最低溫度下復核拉索各階制振目標是否滿足的設計方法。 -
First, higher - order shear deformation theory and reddy ' s simplified higher - order shear deformation theory of the flat shell is adopted to obtain the buckling governing equations. then the geometric nonlinear theory and the geometric and material dual - nonlinear theory with shear effects are introduced ( the buckling governing equations are get ). the simplified geometric nonlinear theory and the small defection theory are discussed as emphases
首先採用扁殼高階理論及reddy型簡化高階剪切變形扁殼理論，得到了屈曲基本方程，然後介紹了考慮剪切的幾何非線性理論及材料幾何雙重非線性理論（得到了屈曲基本方程） ，重點討論了簡化的幾何非線性理論及小撓度理論。 -
Yet for thickness shear actuators, due to the shear deformation dominates the plate deflection for shear actuation mechanism, the higher order shear theory can provide more accurate evaluation of the shear strain energy of the plate than the first - order one, higher order shear deformation theory can provide more accurate evaluation of the deformation of the plate
但對于厚度剪切型激勵器而言，由於激勵器主要是引起板的剪切變形，而高階剪切變形理論比一階剪切變形理論能更好地反映結構的剪切應變能，因此高階剪切變形理論可以提供板變形的更為精確的解。
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