粘性定律 的英文怎麼說

中文拼音 [niánxìngdìng]
粘性定律 英文
viscosity law
  • : 粘動詞(粘附) glue; stick; paste; adhere to; bond
  • : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
  • : Ⅰ形容詞1 (平靜; 穩定) calm; stable 2 (已經確定的; 不改變的) fixed; settled; established Ⅱ動詞...
  • : Ⅰ名1 (法律; 規則) law; rule; statute; regulation 2 (律詩的簡稱) short for lüshi 3 (姓氏) a ...
  1. The results indicate that : 1. the main physical and chemical characteristics vary regularly : with rising of the altitude, there is a transition from silt > sand > clay to sand > silt > clay in the mechanical composition ; the argic horizon emerges below the altitude of 1600 meters ; the content of organic matter is enrichment, the content of organic carbon of epipedon is higher than 20 g / kg, while the content of organic carbon increases with increasing of altitude, and in the altitude of 3500 - 3700meters, the soils under the meadow have the maximum content organic carbon ; the soils appear acid - slightly acid reaction, the ph decreases appreciably and acid strengthen with increasing of altitude ; the soils higher than the altitude of 2500 meters are base unsaturated, indicating the soil leaching is strong, the ph and bs are distinct plus correlated ; the contents of sio2, al2o3, and fe2o3 of the soil body and clay are all relatively stabilization ; in the soil body, the content of sio2 is much high and cao is very little, the total contents of sio2, a12o3 and fe2o3 occupy 92 % of the mineral parts, the sequence of mineral elements is : sio2 > al2o3 > fe2o3 > k2o > mgo > cao > tio2 > mno

    研究結果表明: 1太白山南坡土壤的主要理化質隨海拔高度的上升呈有規的變化:隨海拔高度上升,機械組成由粉粒砂粒粒逐漸過渡到砂粒粉粒粒,海拔1600m以下出現化層;土壤有機質豐富,表層有機碳含量一般在20g kg以上,有機碳含量隨海拔高度升高而相應增加,海拔3500 3700m的灌叢草甸植被下有機碳含量最高;土壤呈酸或微酸,並隨海拔上升, ph值略微降低,酸增強,海拔2700m以上的土壤多呈鹽基不飽和狀態,表明土壤淋溶作用較強, ph值和鹽基飽和度呈極顯著正相關;土體與粒中的sio _ 2 、 al _ 2o _ 3 、 fe _ 2o _ 3含量相對比較穩,土體中sio _ 2含量較高, cao含量較少, sio _ 2 、 al _ 2o _ 3和fe _ 2o _ 3含量之和約占土壤礦質部分的92 ,礦質元素含量的順序依次為: sio _ 2 al _ 2o _ 3 fe _ 2o _ 3 k _ 2o mgo cao tio _ 2 mno 。
  2. Asymptotic stability of viscous shock profiles for one - dimensional viscous conservation laws with boundary effect

    一維守恆初邊值問題激波解的漸近穩
  3. Ultrasonic has being attracted much attention gradually in fuel atomization because of some specialities of cavitation and infection on liquid flow. in the course of atomization of pitchy oil, especially, does it show greatly its advantage, but its material atomizational mechanism need research ulteriorly. the primary content of this thesis is about adding cantilever reed to effervescent atomizer so as to combine ultrasonic and effervescent. this thesis has discussed ultrasonic some mechanism, ultrasonic dynamical procreator, effervescent and liquid mucosity infection on atomization, at the some time we make some experiments and discuss atomization rule following some machinery parameter and run parameter so as to find some rule about ultrasonic atomization and to rich the research of ultrasonic atomization mechanism. all that will be beneficial to the design about ultrasonic atomization atomizer

    超聲波由於其空化機理及對液體的流變影響等特,在燃油霧化燃燒中逐步引起人們的重視,尤其在重渣油等高度液體的霧化過程中逐步顯示出其優越,但其具體的霧化機理還需要做進一步的研究在氣泡霧化噴嘴基礎加入懸臂式簧片哨,將超聲波與氣泡霧化相結合是本文討論的主要內容本文從研究超聲波的一些機理入手,討論了超聲動力發生器氣泡霧化以及液體度對霧化質量的影響,並通過具體的實驗,根據實驗數據來討論霧化質量隨各種結構參數運行參數的變化規,以便找到超聲霧化的一些規,豐富對超聲霧化機理的研究,對超聲霧化噴嘴的設計具有一的指導意義。
  4. The relationships of modal damping versus the stiffness of cables, the attachment height of damper and damping constant are obtained. with the optimal structural control method, a new approach to determine the optimal damping constant of viscous damper is presented. the first a few modal damping can be optimized simultaneously under the optimal damping constant of damper, which is more convenient than the existed design method

    4 、對拉索-阻尼器系統的動力特進行了研究,得到了拉索剛度、阻尼器安裝高度及阻尼系數等參數對拉索系統模態阻尼比的影響規;根據最優控制原理,提出了一種確阻尼器優化阻尼系數的方法,該方法確的阻尼系數能保摘要證前幾階模態阻尼比得到整體優化,改進了現有的設計方法。
  5. During the temperature fields, the results indicate that the processing parameters such as the extrusion velocity, casting temperature, perform preheating temperature, die preheating temperature and so on are important for the temperature fields besides the dwell time. they are must be in concordance each other to the deforming zone is in the quasi - solid state, and the stable semi - solid extrusion is implemented. during the deforming fields, the hyperbolic sine thermo - rigid - viscoplastic fem model is selected according to the forming feature of the process, and the variations of the stress - strain fields are studied

    在溫度場的模擬中,模擬結果表明,保壓時間是影響製件成形質量的關鍵因素之一,擠壓速度、液態金屬澆注溫度、預制體預熱溫度和模具預熱溫度等工藝參數對溫度場的影響也很大,需進行參數之間的協調,只有當變形區內部始終維持準固態時,才能實現穩的液-固擠壓成形過程;在變形場的模擬中,根據液態浸滲擠壓的成形特徵,選用了雙曲正弦剛-有限元計算模型,研究了變形過程中應力應變場的變化規,研究了模角對變形和金屬流動的影響及變形力的變化過程和其影響因素。
  6. Newton law of viscosity

    牛頓粘性定律
  7. Secondly, in view of the limitation and shortage of traditional simulation of finite element approaches for bolt, a new composite grouted bolt element including nonlinear contacting relation will be built based on the above study of the mechanics mechanism of fully grouted bolt. then, an elastic - plastic finite element program will be developed for the analyses of tunnel stability, in which the composite grouted bolt element and nonlinear finite element analysis method will be used ; the patterns and the affect of main design parameters on the support effect of bolt will be analysed using the program, and conclusions of guidance importance for tunnel support design will be drawn. finally, simulation compution for the excavation and support of a highway tunnel will be made out using the above production, and the method of application of the program will be discussed ; analysis of the deformation, stress and distribution of plastic range will be done, and rational support plan will be worked out, which is of guidance importance for tunnel support design and the thery and technique of fully grouted bolt used in tunneling will be perfected further

    首先,本文在綜合分析隧道穩影響因素及失穩破壞模式的基礎上,對全長結式砂漿錨桿作用力學機理進行了深入研究,為全長結式砂漿錨桿的有限元模擬分析奠了基礎;其次,針對傳統錨桿有限元模擬方法的局限與不足,在上述全長結式砂漿錨桿作用力學機理研究基礎上,建立出能反映界面非線結的新型復合砂漿錨桿有限單元模型;然後,運用上述復合砂漿錨桿單元模型,引進非線有限元分析手段,開發了隧道支護穩分析的有限元程序,並就全長結式砂漿錨桿的型式與設計參數對支護效果的影響進行了深入探討,得到了對隧道支護設計具有指導意義的結論;最後,運用本文研究成果對某公路隧道工程實例進行了開挖與支護的模擬計算,探討了其應用方法,並就隧道變形與應力及塑區分佈規進行了分析,從而提出了合理的支護方案,為隧道支護設計提供了參考依據,完善了隧道全長結式砂漿錨桿支護的理論與方法。
  8. The choice dam type is especial importance, during the designed research of the rock - fill dam, particular under the rock - fill dam with very deeply cover layer, the stress and strain of the middle wall and cutting interpenetration wall of the dam foundation is mostly sensitive, whether the. design of dam is scientific and reasonable, it is very important for cutting interpenetration and stability of the dam, the article offer the reference for the design of cutting interpenetration in the foundation with deep cover with earth the water conservancy in xiaban zone, based on the study and analysis the design of cutting seep in the foundation with deep cover with earth, cutting interpenetration concrete wall and the joining model of cutting interpenetration material in body of dam and the applying effect in the practical worko based on the foundation which absorbed and summarize the achievement of design and research in the inter and outer country, for the project of the clay vertical middle wall and vertical cutting interpenetration, the asphalt concrete vertical middle wall and vertical cutting interpenetration the clay inclined middle wall and the lever carpet layer cutting interpenetration, respectively in terms of the different stage of complete period sluice period and working condition, adopting nonlinear calculate and analysis with the finite element method ; carrying the analysis and study with the 3d finite element method as to the different joining model of the left bank high slope cutting interpenetration body and the foundation concert cutting interpenetration wall ; carrying the analysis and study with the 3d finite element method as to the effect of the wall stress and strain because of the different elasticity modulus of the concert cutting interpenetration wall through the analysis and study with the different project. have comparatively all - around comprehended the various model dam, particular the distribute rule of stress and strain of the cutting interpenetration system, provide for the important evidence of the plastic area size the join model of the foundation cutting interpenetrate wall and dam body cutting interpenetrate system the choice of the dam model and the design of the structure of the dam body, the result of research and advice have very importance value in design and building for the similarity project

    工程設計中,壩型的選取顯得尤為重要,特別對于壩基有深厚覆蓋層的堆石壩,心墻和壩基防滲墻的應力和變形是壩體、壩基最敏感的部位,設計方案是否安全、科學和合理,對大壩防滲和穩起到至觀重要的作用。本文研究分析了國內外深厚覆蓋層基礎防滲設計、壩基混凝土防滲墻與壩體防滲體銜接形式及工程實際應用效果,為下坂地水利樞紐工程深厚覆蓋層基礎防滲設計的方案選擇提供了參考;在吸收和歸納了國內外堆石壩的設計研究成果的基礎上,對土心墻和壩基垂直防滲方案、瀝青混凝土心墻和壩基垂直防滲方案以及土斜心墻和壩基水平鋪蓋防滲方案,分別按竣工期和蓄水運行期的不同工作情況進行了有限元非線計算分析;對左岸高陡邊坡的大壩防滲體與基礎混凝土防滲墻的不同結合型式進行了三維有限元靜力計算分析和研究;對混凝土防滲墻不同彈模量對墻體應力和變位的影響進行了三維有限元靜力計算分析和研究。通過對不同方案的計算分析和研究,比較全面的了解了各方案壩體,尤其是防滲體的應力和變形分佈規,為壩型選擇、壩體結構設計、基礎防滲墻與壩體防滲體的結合型式以及塑區大小的確提供了重要依據。
  9. Combined with the full scale models tested in - situ of prestressed concrete penstock with double circle unbonded strands and single circle bonded strands of xiaolangdi multipurpose dam project of yellow river, the advantages and disadvantages of two different prestressed systems are analyzed, the concrete stress distributions of the prestressed concrete penstock are induced and summarized during the whole tensioning strands stage. the consistence among the test results, the theory calculating and the three dimensional finite element analysis is proved. therefore, the theoretical method of prestressed concrete penstock is feasible

    結合黃河小浪底水利樞紐工程在施工現場進行的採用雙層雙圈環形無結預應力鋼絞線和單圈有結預應力鋼絞線對排沙洞襯砌混凝土施加預應力的1 : 1模型試驗,對比分析了兩種后張預應力施工體系的優劣,歸納總結了預應力筋束張拉過程中預應力混凝土壓力管道結構管壁混凝土的內力分佈規,驗證了模型試驗實測數據、理論計算和三維有限元分析結果的一致,確了預應力混凝土壓力管道理論計算方法的可行
  10. Aimed at the practical performance of soft clay, the static equilibrium equations taking consideration of effect of mass change, with the introduction of soil configuration, soil convection formula and mass conservation theory in soil, are derived, which reveal the phenomenon of coupling of total stress and seepage in equilibrium equations. then, some advisable experimental means are explored to determine the effect of mass change during consolidation. objective stress and strain should be used in large strain analysis

    針對軟土大變形固結的實際狀,文中引入了土體構形的概念,土體傳運公式和土體質量守恆,並由此導出了考慮變質量效應的大變形固結靜力平衡方程,揭示了平衡方程中存在的總應力與滲流相互耦合的效應,並考慮了固液兩相的可壓縮,進一步探索了測試變質量效應的試驗方法。
  11. By simulating the excavation course of foundation pits and starting with the change of stress field, the regularities of remanent strength and static earth pressure of viscous soil mass under excavated plane are analyzed so that the influence depth due to soil mass excavation unloading may be determined

    摘要模擬基坑開挖過程,由應力場變化方面入手分析開挖面以下土體殘余強度和靜止土壓力的規,以期確土體開挖卸荷的影響深度。
  12. 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,並研究分析了機翼飛行迎角變化對顫振速度的影響。
  13. The strength of harden material is high, and the properties of this materials and the repairing techniques are advantageous to that of the others. by theoretical exploration on mechanism of permeation, investigate the movement regulation of the material in the object be treated. that make grouting technolgy can be suported by theories : absorb - permeate mechanism of the liquid in the soil proceed to experiment, intermittent grouting method was made according to the result of experiment ; establish the proliferation control theories model of modified epoxy resin in the not even crack system ; to match between material characteristic and craft, to reach the goal of construction in the special and complicated cases, can be directed by the theories

    通過對漿材在工程處理對象中的滲透擴散機制的理論試驗探討,探索漿材在處理對象中的運動規,使化灌工藝技術得到理論支撐:對低滲土中漿液的吸滲機制進行試驗研究,並據此確間歇式灌漿的工藝措施;建立改環氧漿材在非均勻裂隙體系中的擴散控制理論模型,並運用材料特、工藝的科學配合,達到化灌理論指導特殊復雜條件下施工的目的。
  14. Based on the investigation of the effects of the formation process, the characteristic, adhesion and stress transfer of interface on its macroscopical mechanical properties and accurate characterization of the adhering conditions between the reinforcement and matrix, it is possible to achieve effective control of interface, which is the key to obtain high quality composite

    而深入研究界面的形成過程、界面層質、界面合、應力傳遞行為對宏觀力學能的影響規,精確地表徵增強相與基體之間界面結合的情況,利用量化描述,進而有效進行控制,是獲取高能復合材料的關鍵。
  15. In this paper, maccormack explicit time - split scheme, baldwin - lomax algebraic turbulent model and two - steps hydrogen - air nonequilibrium chemical kinetics model are employed to simulate the 2 - d flow fields in a fixed geometry scramjet combustor in different injecting way of fuel in different flight conditions. the results show, in the same entrance condition, the operating mode of scramjet combustor is influenced by the control of fuel

    本文採用maccormack顯式時間分裂法、 b - l代數渦湍流模型及氫-空氣兩步非平衡化學動力學反應模型,模擬了在不同的飛行馬赫數條件下,固幾何的雙模態燃燒室在不同供油規下的二維燃燒流場。
  16. Regarding the lcm filling process as the newton fluid through fibrous reinforcements, the permeability of preform determines the saturating of resin in fiber, and has effects on the curing process and the quality of products. based on the darcy ' s law, the theoretical model of permeability measurement was established. and the influence of different testing methods and major process parameters such as fabric structure, fiber volume fraction, injection pressure, flow rate and resin viscosity on preform permeability were investigated in details

    文中首先根據達西建立了滲透率測量的理論模型,深入研究了不同的測試方法及主要工藝參數(纖維織物織構、纖維體積含量、充模壓力、流動速度、樹脂度)對滲透特的影響規,發現多孔介質增強材料的滲透率主要取決于纖維織物的結構形式,預成型體孔隙分佈及其體積分數、壓實對滲透率有較大的影響,提高充模壓力和流動速度可以縮短充模時間,在一程度上可以提高滲透率。
  17. The threshold speed and the typical characteristics of the oil whip of the system are simulated under the nonlinear model of oil film force, and the state of motion and type of the bifurcation are analyzed by floquet multiplicators which is computed by the shooting method. secondly, the the nonlinear dynamical model of the low - pressure rotor - bearing system by column bearing with reduced dimensions is presented. the numerical results show the rule of the amplitude with the eccentricity of rotor, the length - to - diameter ratio, oil viscosity and the clearance - to - radius ratio of the bearing under the definite speed

    其次,對降維后的低壓轉子?軸承系統的非線動力學方程,計算了圓柱瓦軸承支撐的轉子系統的振動穩在固轉速下隨偏心距、軸承長徑比、潤滑油動力度和軸承間隙比的變化規,並分析了轉子前軸承軸頸的失穩轉速與轉子偏心距、軸承長徑比、潤滑油動力度和軸承間隙比之間的關系,同時利用floquet理論分析其運動狀態和分岔類型。
  18. It is shown that vibration suppression efficiency of these kind of treatments depend much more on the viscoelastic layer thickness, material properties and the piezoelectric layer thickness. secondly, a linear quadratic regulator and output feedback are used to actively control vibration. it is shown that placing the active element on the opposite side of pcld or underneath pcld is capable of vibration suppression with lower control effort and more inherent damping

    義了主被動混合阻尼結構控制能指標:被動抑振能指標、主動抑振能指標、控制能量指標和控制力能指標;然後,基於狀態反饋最優控制,根據義的控制能指標分析阻尼層厚度、阻尼材料參數、壓電作動層厚度對主被動混合阻尼結構振動控制能的影響,得到了一些有價值的結論。
  19. In this paper, using the elasticity recovery correspondence principle and the nonlinear viscoelastic continuum thermodynamics, we utilize the irreversible thermodynamics to get the nonlinear viscoelastic relations with damage

    本文結合彈回復對應原理,從非線材料的連續介質熱力學分析入手,通過不可逆熱力學來求出含損傷的非線本構關系。
  20. ( 3 ) reinforced concrete frame columns modeled by using three - dimensional solid element to concrete and three - dimensional bar to reinforcing steel bar, and at the same time consideration the adhesive bond between reinforcing steel bar and concrete, the fem is used. by choosing reasonable element, determining mesh division and load steps, simulation of load - displacement, cracking, yielding and ultimate load, crack development history, and calculating fail crack diagram of reinforcement concrete frame columns under laterally monotonic load are conducted. the analyses are compared with the experimental results

    ( 3 )混凝土用三維實體單元、鋼筋用空間桿單元對鋼筋混凝土框架柱進行三維建摸,而且同時考慮了鋼筋和混凝土的能,通過合理的單元選取、網格劃分及荷載步的確,模擬了單調荷載作用下鋼筋混凝土框架柱的荷載啦移曲線、開裂荷載、屈服荷載及最大荷載、裂縫發展規、計算破壞裂縫圖,並與相應的試驗結果進行了比較分析。
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