表面載荷 的英文怎麼說

中文拼音 [biǎomiànzǎi]
表面載荷 英文
surface load
  • : Ⅰ名詞1 (外面;外表) outside; surface; external 2 (中表親戚) the relationship between the child...
  • : Ⅰ名詞1 (頭的前部; 臉) face 2 (物體的表面) surface; top 3 (外露的一層或正面) outside; the ri...
  • : 載Ⅰ名詞(年) year : 一年半載 six to twelve months; six months to a year; 三年五載 three to five ...
  • : 荷名詞(蓮) lotus
  • 表面 : surface; superficies; boundary; face; rind; sheet; skin; outside; appearance
  • 載荷 : load; loading載荷變化 load fluctuation; variation in load; 載荷裝置 load device
  1. Finally, with caparisons of that three parapets properties cantilevered parapets has been adopt to the steel structure of light - weight buildings with gabled frames, numerical simulations have been carried out with that buildings, results of simulations show that device can also significantly reduce the area - averaged coefficient of wind pressure and high negative suction peaks on zones susceptible to wind pressure. formula has been proposed about the height of that parapet

    最後通過三種女兒墻的性能比較確定對門式剛架設置懸挑女兒墻進行數值模擬,結果同樣明懸挑女兒墻能明顯地降低門式剛架屋敏感區的負壓峰值及屋體型系數,並給出了女兒墻高度限值公式。
  2. If this load centroid is behind the elastic axis of the wing structure, then a nose-down twist of the main wing surface results.

    如果該重心在機翼結構彈性軸之後,則引起主機翼前端向下的扭轉。
  3. The live loads were applied by a standard system of ring dynamometers with attachment points distributed uniformly on the upper surface of the decking.

    用一系列標準環式測力計施加活,其接觸點均勻分佈於板的上部
  4. The pivot and race surfaces were true surface of revolution and were correctly centered when no load was applied.

    軸樞和套圈的是準確的旋轉,並在未施加正確對中。
  5. By the check - out, inspection and measurement to start construction the industrial art to this test pile with the examination between stake body mass and bearing power, made sure the stroke reasonable operation method drilling under the dissolved cavern geology term ; the pier foundation loading test expressed the lading and rub the lading that resistance drag a glazing for of relation, and to the borehole cast - in - place concrete pile in the karst terrain deliver with break the mechanism, the characteristic of bearing power, proceeding the spot test job of the full of result ; the test data expresses the stake side friction resistance to rises with a bat batch terminal friction resistance very important function, the of tip of pile resistance drag occupies the proportion very few

    通過對本次試樁施工工藝的檢測和樁身質量及承力的檢驗,確定了沖擊鉆在溶洞地質條件下的合理使用方法;基樁承實驗明了與摩擦阻力之間的關系,並對巖溶地區的嵌巖灌注樁的傳遞和破壞機理、承力特性,進行了富有成果的現場測試工作;試驗數據明樁側摩阻和支盤端阻起很重要的作用,樁端阻力所佔比例甚少。這與設計樁基時的計算模式相差很大,承力也較設計增加;使用力學數值分析方法和有限單元法,對鉆孔灌注樁樁端下的巖體強度和結構穩定性方進行模擬計算和定量研究。
  6. The evolution laws of structural weight, the best optimum fitness, average fitness, maximum nodal stress and displacement with increasing generations are discussed. and multi - result fact of the topology optimization can be obtained by ga - fem. the research results in this thesis show that the developed method is successful in the topology optimization for 2d continuum structures under multi - load and multi - constrain conditions

    上述工作明,本文ga ? fem可以實現多、多約束條件下平連續結構拓撲優化,與eso等優化方法獲得的優化結果相比,本文的優化結果不存在單元鉸接和不連續單元,優化結構多樣,質量更小,效果更優。
  7. The stresses acting over the surface of the body must produce tractions which are equivalent to the loads being applied to the body.

    作用在物體整個上的應力所產生的力,必須與作用在物體上的相等。
  8. A series of tests were performed on the self - made fretting wear test rig to examine the fretting wear of steels, by taking the wear depth of steel wires as a characterization parameter describing the fretting wear in relation to contact load and fretting time. the results demonstrates that the fretting wear depth increases with the increasing of the contact load and fretting time

    結果明,鋼絲試樣的微動磨損深度隨著接觸和微動時間的增加而呈增長趨勢,但由於接觸積和接觸應力在微動磨損過程中隨著接觸和微動時間的變化而變化,使磨損深度在不同磨損工況下增長趨勢不同。
  9. The main results and academic contributions of the dissertation can be summarized as following : 1 ) for the difficulty to obtain the accurate analytical solution of the stress constraints around 3d cracks, detailed 3d fe analyses have been conducted to study the out - of - plane constraint factor tz around a straight through - thickness crack, a quarter - elliptical corner crack and a semi - elliptical crack embedded in an isotropic elastic plate subjected to uniform remote tension loading. the distributions of tz are minutely studied in the forward section of the cracks. strong 3d zones ( tz > 0 ) along the crack front were investigated despite the far field stress - free boundary conditions

    全文主要研究內容和學術貢獻如下: 1 .針對一般三維裂紋端部場應力約束準確解析的困難,對均勻拉伸作用下各向同性彈性板中穿透厚度中心直裂紋、半橢圓裂紋和1 / 4橢圓角裂紋進行了大量詳細的全場應力三維有限元分析,首次全分析了非穿透裂紋端部場三維影響區范圍,給出了不同形狀三維裂紋前沿離應力約束因子tz的數值解,並結合k場平解給出了非穿透裂紋端部應力場k - tz雙參數描述。
  10. The calculated drafts covers the whole possible ship draft in the large amplitude motion ; secondly, the research creates and solves the ship large amplitude motion equations. on the one hand, the actual calculation takes into account the coupling between the different motion modes, on the other hand, in the process of calculation of the ship hydrodynamic coefficient, it considers the influence of the nonlinear factor. the hydrodynamic coefficient used in the calculation of froude - krylov force, diffraction force and radiation force changes instantaneously following the draft, and the hydrostatic buoyancy is computed very accurately for the instantaneous immerse hull

    本文的研究分為二個部分:首先利用frank源匯法計算水動力系數,計算包括不同吃水時的附加質量和阻尼系數,吃水范圍涵蓋了船舶大幅度運動時所有可能的吃水;然後建立和求解船舶大幅度運動方程,在實際計算時一方考慮了運動模態之間的耦合,另一方在計算水動力時,考慮了非線性因素的影響。 froude - krylov力、輻射力、繞射力中的水動力系數隨吃水瞬時變化,靜浮力的計算精確到船體瞬時濕積,最後用四階龍格?庫塔方法在時域內求解船舶運動方程,並進行了計算。
  11. Physical model and research development of scratch test are reviewed in this paper. the physical relationship between critical load lc measured by scratch test, shear strength and adhesion energy exists. the critical load lc can be used to characterize adhesion strength of hard coating

    本文總結了劃痕試驗法的物理模型及研究現狀,臨界與塗層和基體之間的界剪切強度和附著功有物理關系,臨界能夠徵塗層與基體的結合力。
  12. Abstract : physical model and research development of scratch test are reviewed in this paper. the physical relationship between critical load lc measured by scratch test, shear strength and adhesion energy exists. the critical load lc can be used to characterize adhesion strength of hard coating

    文摘:本文總結了劃痕試驗法的物理模型及研究現狀,臨界與塗層和基體之間的界剪切強度和附著功有物理關系,臨界能夠徵塗層與基體的結合力。
  13. We research the causes of concrete cracking, develop the high performance anti - cracking additive, optimize the concrete mix and construction techniques, increase the stability of concrete volume by shrinkage compensation, enhance splitting tensile strength, and can meet demand of high workability of fresh concrete. in the study, a thorough investigation of this problem is made from all points of view, with the aid of various modern measurement & testing technology and different theories & methods in surface physical chemistry, structural chemistry, solid - state chemistry, composite materials, fracture mechanics, etc. our research results have shown that the various shrinkage of concrete cause concrete cracking in building engineering, such as autogenous shrinkage, dry shrinkage, temperature shrinkage, plastic shrinkage, carbonized shrinkage, etc

    目前,解決混凝土開裂的方法是綜合的,我們調查研究了混凝土開裂的原因,開發研製了高性能抗裂外加劑,優化混凝土的設計和施工方法,並通過補償收縮達到混凝土體積穩定,提高抗裂強度,滿足混凝土拌和物高工作性能的要求。本研究採用多種測試技術,應用物理化學、結構化學、固體化學、復合材料學、斷裂力學等多學科的理論與方法,從不同的角度進行深入的研究和探討。通過調查研究建築工程中出現的混凝土開裂、滲漏問題,發現混凝土在非作用下開裂主要是由混凝土的自收縮、乾燥收縮、溫度收縮、塑性收縮、碳化收縮等各種收縮變形引起的。
  14. It consists of two parts : the first part ( chapter 2, 3, 4, 5 ) studies the characteristic of elastic waves and surface waves in orthotropic fluid - saturated porous media using biot ' s theory which is based on the substitutive model. in the second one ( chapter 6 ), a new three - dimensional meso - calculating model, which is more coincided with the inner action mechanism of porous media, is proposed. based on this model, the elastic wave propagation in fluid - saturated porous media under longitudinal impacting is discussed

    論文主要分為兩大部分:第一部分基於替代模型的biot理論,對各向異性介質中平波以及波的傳播特性進行了研究;第二部分從細觀層次出發,提出了一個更加符合含液飽和多孔介質內部作用機理的三維細觀計算模型,並對縱向沖擊作用下液飽和多孔介質中彈性波的傳播規律進行了討論。
  15. In this paper, single fiber composite fragment ( sfc ) method, which is one of the most widespread and effective experimental methods for determining the mechanical properties of interface, was adopted to study the load transfer mechanism and to evaluate the adhesion performance of composite with surface - treated fibers. this is helpful for optimization design of interface

    本文採用了目前最為流行、最為有效的直接測定界力學性能的實驗方法之一? ?單纖維復合材料斷裂實驗研究了纖維樹脂界傳遞機理,分析了幾種纖維處理復合材料界的粘結情況,對界的優化設計具有一定的指導作用。
  16. Finally displacement wind load factor and inner force wind load factor are calculated and compared. the applicability of them is offered for design reference, based on the analysis of the difference between their values

    通過對位移風振系數和內力風振系數的計算和比較,分析兩者對于大跨異型結構計算的適用型,以供設計參考。
  17. The fibers in the matrix carry most of the external loads applied on composite, while the matrix only acts as the bridge to transfer the loads. currently, the one - dimension load transfer model presented by cox and the two - dimension load - transfer model proposed by nairn are the representative theories in the field of the interface load - transfer study

    復合材料主要是通過纖維來承受外界,基體只起傳遞的橋梁作用,目前對界傳遞機理的研究主要以cox的一維界傳遞模型和nairn的二維界傳遞模型為代
  18. Simultaneity, various single fiber strength tests ( sft ) and the single fiber fragmentation techniques were discussed, and the influence of fiber surface treatment on the single fiber strength and the interface load - transfer were discussed in detail. the two parameters weibull statistic theory was used to evaluate the scattering of the tensile strength test results of three types of single fibers with different surface treatments. the following conclusions can be drawn based on the analysis of the results

    同時,文中詳細討論了單纖維強度測試實驗( sft )和單纖維復合材料斷裂實驗( sfc ) ,重點討論了纖維處理對單纖維拉伸強度和界傳遞能力的影響;採用兩參數weibull統計理論對經過三種不同處理的單纖維拉伸強度的測試結果的分散性進行了評價,獲得了理想的實驗結果;分析實驗結果可得到如下結論, sft實驗與sfc實驗獲得的界剪切強度吻合良好;經過處理的玻璃纖維的界粘結情況較未經處理的玻璃纖維好;經過處理的玻璃纖維的界粘結強度和單纖維拉伸強度均高於未經處理的玻璃纖維。
  19. The main results of the wind tunnel experiment on the 1 200 model of the chinese national grand theatre were introduced. at first, the wind pressure distributions of its semi - ellipsoidal surface in an atmospheric boundary layer flow were simulated, and the effect of the surface roughness was researched. the results indicated a reasonable regularity of its wind loading in various wind directions. on the problem of the environmental influence, it demonstrated that there existed a great effect for the pressure distribution of the great theatre when the grand hall is at east

    介紹中國國家大劇院模型的風洞實驗結果。首先對它的半橢球在大氣邊界層中的風壓分佈及增加粗糙度的影響進行研究,實驗結果明在不同風向下它的風具有很好的規律性。有環境影響的對比實驗結果明人民大會堂對大劇院的風有較大的影響。
  20. It is proved by the analysis that, during the symmetric landing of that airplane, the impact load of the after main landing gear is the largest among those landing gears and the nose landing gear comprised of about 18 percent of the total impact load

    分析明:該樣機在對稱著陸過程中,後主起落架承受的地最大,前起落架輪胎僅承擔了全機18 %的沖擊分佈較普通的前三點式起落架有明顯的改善。
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