viscous element 中文意思是什麼
viscous element
解釋
粘性單元-
When viscous forces predominate the flow is proportional to the pressure drop across the element.
當粘滯力起主導作用時，流量當通過主要部分的壓力降或正好。 -
Based on the analysis of the dynamic behavior of nanning bridge by means of spatial finite element models, the nonlinear dynamic time history method is used to conduct the sensitivity analysis of the parameters of viscous dampers ( damping constant c and damping exponent ? ) of the bridge and the laws of influence of the parameters on the seismic response thereof have been obtained
摘要在來用空間有限元模型對南寧大橋動力特性分析的基礎上，採用非線性動力時程分析方法，對南寧大橋粘滯阻尼器參數（阻尼常數c 、阻尼指數? ）進行敏感性分析，得出粘滯阻尼器參數對南寧大橋地震響應的影響規律。 -
After analysis of the parameters of the devices, a conclusion is achieved that we can directly use the parameters of the dampers instead of devices to design the buildings in the common situation. then a one - freedom modal is used to compare the differences of performance between these two dampers under harmonic load. finally, three buildings, which are installed with viscoelastic dampers, viscous dampers and no dampers respectively, are analyzed using finite element method, time history method and response spectrum method, and the result is the same as that of harmonic analysis
如果支撐剛度較小，應採用本文推倒的公式計算阻尼裝置的性能參數；利用單質點模型進行阻尼結構在簡諧荷載作用下的性能分析，並比較了粘彈性與粘滯阻尼結構在振動控制方面的性能差異；最後利用數值方法分別對未安裝阻尼裝置結構，安裝了粘彈和粘滯阻尼裝置的三種結構進行了反應譜和時程分析，得到了與理論分析一致的結果。 -
Many test cases are calculated to verify the above study. the cases are either real or standard testing models, including multi - element airfoil, wing - body configuration, cone / cylinder missile model and 3 - d high - lift systems, etc. the results of present calculation are in good agreement with experiment data, and show flexibility and accuracy of the approaches. base on the cartesian grids, this thesis has targeted the development and integration of many algorithms and techniques such as adaptive refinement, omni - tree data structure, hybrid grid method, etc. an analysis software and research methods are designed and developed for the steady - unsteady and viscous - inviscid flow complex systems and configuration
7 .運用上述研究成果和結論，進行了大量算例的實驗驗證，外形范圍包括多種標模與型號，涉及多段翼型、 m6機翼、細長體模型、翼身組合體、兩段機翼增升標模、帶縫翼和襟翼的三段增升翼身組合體等復雜外形，計算結果均與實驗吻合良好，充分說明了本文發展的各種演算法、流場求解、網格生成方法的正確性和魯棒性。 -
The influencing element and the equation of the shear strength of the no viscous moraine and gravel, and strain softening, dilatancy ( shrinkage ) were analyzed
分析了堆石料等無粘性粒狀土的抗剪強度影響因素和合理抗剪強度表達式，應變軟化、剪脹等性質。 -
Through test and research of zipingpu reservoir concrete faced rockfill dam ' s material and finite element analysis of the dam, physics and mechanical characteristics were studied, such as characteristics of rock, compaction, permeability, compressibility and so on, of the no viscous moraine and gravel. at the same time, the mutual relation of physics and mechanical characteristics were studied
對紫坪鋪面板堆石壩築壩料試驗研究，了解堆石料等無粘性粒狀土的巖性、級配、壓實性、滲透性、壓縮性等物理力學性質，以及物理性與力學性之間的相互關系。 -
Numerical simulation of viscous flow round a circular cylinder by finite element method
粘性流體圓柱繞流的有限元模擬 -
Numerical viscoelastic modeling for porphyroclast rotation in ductile shear zones is done by a viscoelastic finite element program based on detailed investigation to three ductile shear zones, the taihangshan mountains, north china. in this model porphyroclast garnet is assumed as isotropic elastic material with small elastic deformation, while the matrix quartz, feldspar as viscous fluid maxwell material which has increasing deformation with time. the viscosity of matrix is supposed to be 10
採用粘彈性力學分析程序對太行山阜平地區剪切帶中斑晶旋轉問題進行了有限元數值模擬。在計算模型中假定：石榴石斑晶為彈性材料，在應力作用下只產生很小的彈性變形石英長石質的基質部分為粘彈性材料，它具有隨時間變形不斷增大的特性。 -
Afterwards, we take sag of cables into consideration and investigate the effect of the sag of cables on the effectiveness of viscous shearing damper. finally, experiments are carried out on jun shan bridge and bai sha zhou bridge to testify the effect of viscous shearing damper and the feasibility of the finite element method and galerkin approach to analyze the effectiveness of viscous shearing damper
然後在考慮斜拉索垂度的情況下，利用迦遼金方法，編製程序求解拉索振動的附加阻尼，並與未考慮垂度情況下的拉索振動的附加阻尼值相對比，分析垂度對附加阻尼的影響。 -
An implicit algorithm suitable for solving viscous flow problems on unstructured mixed element grids
一種隱式時間演算法在非結構混合網格粘性流動計算中的應用 -
Using commercial finite element software ansys, the numerical simulations of the forming processes of decorated rib and handle, which are key positions in the door outer are conducted and investigated the differences of vpf and tradition forming. by using numerical simulation that investigates the effects of viscous injection flow rate on plank ’ s vpf formability and based on those investigated four - aluminum alloy ’ s vpf. the die has been designed for the door outer ’ s viscous pressure forming
首先採用商用有限元分析軟體ansys對車門成形中的關鍵部位裝飾筋和把手的成形進行了數值模擬，對比分析了粘性介質壓力成形與剛性模成形的特點;分析了粘性介質壓力成形過程中，粘性介質的注入速率對成形試件壁厚分佈的影響，在此基礎上對四種常用的6000系列鋁合金板材的粘性介質壓力成形進行了有限元數值模擬。 -
This feature reflects the physical phenomenon of breaking of waves and development of shock waves. in the fields of fulid dynamics, ( 0. 2. 1 ) is an approximation of small visvosity phenomenon. if viscosity ( or the diffusion term, two derivatives ) are added to ( 0. 2. 1 ), it can be researched in the classical way which say that the solutions become very smooth immediately even for coarse inital data because of the diffusion of viscosity. a natural idea ( method of regularity ) is obtained as follows : solutions of the viscous convection - diffusion pr oblem approachs to the solutions of ( 0. 2. 1 ) when the viscosity goes to zeros. another method is numerical method such as difference methods, finite element method, spectrum method or finite volume method etc. numerical solutions which is constructed from the numerical scheme approximate to the solutions of the hyperbolic con - ervation laws ( 0. 2. 1 ) as the discretation parameter goes to zero. the aim of these two methods is to construct approximate solutions and then to conside the stability of approximate so - lutions ( i, e. the upper bound of approximate solutions in the suitable norms, especally for that independent of the approximate parameters ). using the compactness framework ( such as bv compactness, l1 compactness and compensated compactness etc ) and the fact that the truncation is small, the approximate function consquence approch to a function which is exactly the solutions of ( 0. 2. 1 ) in some sense of definiton
當考慮粘性后，即在數學上反映為（ 0 . 1 . 1 ）中多了擴散項（二階導數項） ，即使很粗糙的初始數據，解在瞬間內變的很光滑，這由於流體的粘性擴散引起，這種對流-擴散問題可用古典的微分方程來研究。自然的想法就是當粘性趨于零時，帶粘性的對流-擴散問題的解在某意義下趨于無粘性問題（ 0 . 1 . 1 ）的解，這就是正則化方法。另一辦法從離散（數值）角度上研究僅有對流項的守恆律（ 0 . 1 . 1 ） ，如構造它的差分格式，甚至更一般的有限體積格式，有限元及譜方法等，從這些格式構造近似解（常表現為分片多項式）來逼近原守恆律的解。 -
Finite - element approximations of steady state incompressible viscous flow
不可壓縮粘性流體定常流動的有限元近似 -
Numerical simulation of viscous flow for multi - element airfoil using multi - block grids
多段翼型粘性繞流多塊網格數值模擬 -
The main research works and conclusions of this thesis are listed as follows. the dynamic analysis model of elastic mechanism system with damping alloy parts is deduced based on the relationship between stress and strain of the material, also the analysis model under viscous damping model, complex damping model, nonlinear damping model and viscous - elastic damping model is put forward using the finite element method
本文的主要研究工作及結論如下：從材料應力應變本構關系出發，導出了滯變阻尼模型、復阻尼模型、非線性阻尼模型、粘彈性阻尼模型下的有限單元分析模型，進而給出了含阻尼合金構件彈性連桿機構系統動力學模型。 -
Sea and air are divided by a viscous curtain ; beneath the curtain is an element weighing 800 times as much as air, utterly dark a few fathoms down, and with pressures that would pulp a man at 3, 000 feet
海洋和空氣被一種粘性的「簾布」分開， 「簾布」之下是一種比空氣重800倍的成分，向下幾英嚼完全黑暗，在3000英尺深處的壓力會把人壓成醬。 -
According to the research status quo to control the vibration of cables, this paper takes advantage of finite element method to illustrate the effectiveness of viscous shearing damper. the work is based on the theory of complex - eigenvalue
根據國內粘性剪切型阻尼器研究現狀，本文首先在非經典阻尼系統振動特性的復特徵值理論基礎上，採用有限元方法編製程序，分析粘性剪切型阻尼器所能夠達到的減振效果。
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