粘性轉數計 的英文怎麼說
中文拼音 [niánxìngzhuǎnshǔjì]
粘性轉數計
英文
viscosity tachometer-
To meet the demands for large space and flexible compartmentation of buildings, laminated vierendeel trusses are adopted in high - position transfer story structures. first the bearing characteristics are analyzed, in which reasonable stiffness ratio of the upper chord, middle chord, and lower chord is derived. then combined with an actual engineering model ( 1 8 similar ratio ), the static loading and pseudo - dynamic tests of two models for laminated vierendeel truss used in transfer story structures are conducted, in which one model adopts reinforced concrete, and the other adopts prestressed concrete and shape steel concrete. seismic behaviors are analyzed, including inter - story displacement, base shear - displacement skeleton curves, and equivalent viscosity - damping curves. a program is programmed to carry out the elasto - plastic dynamic analysis, and displacement time - history curves of the two models are derived. the test and analysis results show that the laminated vierendeel truss with prestressed concrete and shape steel concrete has excellent seismic behaviors. it can solve the disadvantages of laminated vierendeel trusses used in transfer story structures. finally, some design suggestions are put forward, which can be referenced by similar engineering
為滿足建築物大空間和靈活隔斷要求，在高位轉換層結構中採用迭層空腹桁架結構.首先分析了其受力性能，得出了空腹桁架各構件合理的截面剛度以及布局形式.然後結合一實際工程，進行了兩榀迭層空腹桁架轉換結構模型（ 1 : 8相似比）的豎向荷載下靜力試驗以及擬動力試驗.其中一榀為普通混凝土迭層空腹桁架，另一榀配置了預應力和鋼骨混凝土，對比分析了兩模型的層間位移比、骨架曲線以及等效粘質阻力系數等抗震性能的比較，並進行了彈塑性動力分析.試驗和分析結果表明，配置預應力和型鋼混凝土的迭層空腹桁架轉換結構具有良好的抗震性能，可以成功地解決迭層空腹桁架作為轉換層結構所產生的弊端問題，最後對這類轉換層結構提出了相應的設計建議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。The computations are shown to agree well with available experimental and numerical data and the physics of 3d large - scale flow separations and vortex shedding are confirmed. the simulation of the flow around a maneuvering wigley hull is a demonstration of capability for calculations of sway forces and yaw moments acting on a hull moving obliquely at a large range of yaw angles. the focus of study is large - scale cross - section separation flows, bilge - vortex development along the hull in the longitudinal direction and their effects on hydrodynamic forces
應用所開發的求解器，以wigley船型為算例計算了大角度斜航船體粘性流場和水動力，分析了漂角的變化對船體所受到的粘性水動力的影響，相當精確地預報了以橫流分離和般渦生成與泄出為特徵的操縱運動船體特有流動形態及橫向水動力和轉脂力矩，經與現有試驗和計算數據比較，檢驗和驗證了該求解器精確模擬繞斜航運動船體的大尺度分離流動和計算非線性水動力的能力。The numerical simulation computations of the three dimensional viscosity fluids are done to research the turbomachinery properties, which includes the determination of the computation equation, the finite mesh and the determination of boundary conditions
進行了水輪機葉片切割前後轉輪內部三維粘性流的數值模擬計算，其中包括方程的確立、方程的變換和離散、邊界條件的確定。A method is proposed for the parameter identification of the viscoelastic internal dampers of the multirotor systems in this paper. the multi - rotor system is regarded as a composite structure. the impedance matching method in the substructure method for structural dynamic analysis is used for the dynamic calculation of the structure. the augmented lagrange method is applied to the iteration calculations of the characteristic determinant of eigenvalve equation of the system. and then the results of parameter identification can be obtained. upon the dynamic characteristics of the system, the method can reveal the influence of the gyroscopic moments of force precisely. in process of the analysis, the various properties of multi - rotor systems are made the best use of, so the measure of the modes parameters is avoided, the calculation is simplified. in addition, an efficient method is proposed to establish a dynamic model of multirotor systems with viscoelastic internal dampers. the calculating results are consistent with the experimental results satisfactorily
提出了多轉子系統的粘彈性中間彈支參數辨識的一種方法.該方法把多轉子系統看作復合結構，用動態子結構分析的阻抗匹配法計算動力學特性，用增廣拉格朗日乘子法迭代計算系統特徵方程的系數行列式，獲得系統物理參數的辨識結果.該方法可以準確計入陀螺力矩的影響，避免測量振型參數.在分析中，利用多轉子系統的特性可簡化分析過程.文中還介紹了一種建立粘彈性彈支多轉子系統動力學模型的方法.計算結果與試驗結果基本一致More than 200 different condition 3d viscosity steady flow fields in the thrust vectoring nozzle at different nozzle pressure ratio and different nozzle area ratio and different geometric defected angle is calculated by the program developed. and the related performance parameters are acquired by numerical simulation
利用該程序計算了某矢量噴管在不同的壓比、面積比和幾何偏轉角下的200多種三維有粘流場，獲得了矢量噴管的性能數據。The effect of the change of surface elevation on the wave development and elimination is pointed out for the first time, which provides the necessary theoretical basis for the development of united current - wave - tide model ; hi the discussion of the effects of waves on currents, a variety of wave - induced forces on the geostrophic and viscous condition and their producing mechanism are introduced systematically, their corresponding wave - induced currents are also analyzed qualitatively. moreover, a complete expression of wave - induced reynolds stresses tensor is presented for the first time
在浪對流作用的討論中，系統的闡述了海浪在地轉作用和粘性條件下所產生的各種作用力，詳述了它們的生成機制，並定性的分析了相應的波生流，同時，首次提供了地轉條件下浪致雷諾應力張量的完整表達式，為實現海流模式與海浪模式的并行數值計算提供了一種簡便的途徑。Abstract : the article introduces cement slurry rheological characteristics and the method of determining the main parameters for cement slurry rheological characteristics, and analyses the difference between the rotation type and funnel type of viscometers in measuring plastic viscosity and apparent viscosity of cement slurry, and then the limitation of the funnel type of viscometer is described. the difference between rigidity and yield value is pointed out. finally through analysis of cement slurry rheological characteristics, the cement slurry filling mechanism is proposed, and the main factors affecting cement slurry are studied
文摘:介紹塑性流體水泥漿的流變性及確定水泥漿主要流變參數的一般方法；分析旋轉式粘度計與漏斗式粘度計在測定水泥漿塑性粘度、表觀粘度時的區別，說明漏斗式粘度計在使用上的局限性；針對粘聚力（動切力）的測定進行分析，認為粘聚力與動切力為不同的概念.通過對水泥漿流變性分析，提出水泥漿充填機理，並對影響水泥漿擴散的主要因素，即粘度影響水泥漿在節理裂隙中向前擴散的速度，動切力限制水泥漿擴散距離作了說明分享友人