viscous coupling 中文意思是什麼
viscous coupling
解釋
粘液耦合器-
Base on review of existed study and application in suppressing cable vibration in the world, technique of mitigating cable vibration with viscous damper and mr damper has been investigated in this dissertation, and the main contents and progresses in form of summary are as following : 1 the motion differential equations of the cable - damper system are formatted, which take into account these factors, such as the inclined angle, sag, stiffness etc. coupling motion between cable and deck is studied with analytical and numerical method. numerical results show that large amplitude vibration of cable with beat rhythm will occur when exciting frequency of deck equals two times modal frequency of cable
本文在對國內外斜拉索振動控制研究與應用現狀進行綜合評述、分析的基礎上，針對上述問題進行了深入研究，具體的研究內容和取得的成果包括： 1 、建立了斜拉索-阻尼器系統運動方程，對拉索與橋面的耦合振動作了分析和研究，數值結果顯示當橋面激振頻率等於某階拉索模態頻率的兩倍時，很小的初始擾動將引起拉索的大幅振動，並呈現拍振的特徵，與實測的拍振信號一致。 -
Then the steady and unsteady subsonic, transonic and supersonic viscous flows around airfoil and some aircraft are numerically simulated. the 3 - dimensional unsteady navier - stokes equations are solved using the implicit lu - nnd algorithm, with baldwin - lomax turbulent model. on the basis of simulating unsteady viscous flow, coupling the structure dynamics equations, the problems of static aeroelasticity and flutter are investigated for wings and elevator
在模擬非定常粘性繞流的基礎上，與顫振運動方程相耦合，分別對機翼和全機流固耦合現象中顫振問題進行了研究，準確求解跨音速顫振臨界速度，分析機翼和全機的從亞音速到超音速范圍的顫振規律，並研究分析了機翼飛行迎角變化對顫振速度的影響。 -
Furthermore, this paper develops a practically seismic design method of the middle - rise or low - rise symmetric structures with unsymmetrically viscous dampers on the basis of the theoretical analysis and provides corresponding formulas to obtain the translation - torsion coupling seismic response
此外，在理論分析的基礎上進一步提出了中低層對稱結構不對稱安裝粘滯消能器時的實用抗震設計方法，推導出了相應的平扭耦合地震作用的計算公式。 -
Overcoming the inability of forcing decoupling method ( fd ), this paper presents a new method - to - step - additional - stiffness method ( tsas ) to calculate the translation - torsion coupling seismic response of tile symmetric structures with asymmetrically viscous dampers
摘要克服強行解耦法（ fd ）不能求解對稱結構由於不對稱安裝粘滯消能器而產生平扭耦合地震作用的不足，提出了一種求解該種情況下的平扭耦合地震反應的新方法兩步附加剛度法（ tsas ） 。 -
Analytic results indicate that the calculation results with simple boundaries is larger than those with viscous boundaries, that it is adequate that the transverse calculation range is taken as six times of the diameter of the tunnel with simple boundaries, that it is accurate enough to analyze the transverse seismic response with planar models, that the seismic response of immersed tunnels increases with the increasement of depth and it is great in hard rock, and that the coupling of water and structures has a little influence on the seismic response of immersed tunnels
分析結果表明，與採用粘性邊界相比採用簡單邊界計算的結果是偏大的；採用簡單邊界時橫向計算范圍取六倍洞寬就足夠了；在對沉管隧道進行橫斷面地震分析時採用二維分析就行了。沉管隧道的地震反應隨著埋深的增加而增加；在硬巖中沉管隧道的地震反應要大些；水與結構的耦合對沉管隧道的地震反應影響不大。
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