極限阻力 的英文怎麼說

中文拼音 [xiàn]
極限阻力 英文
ultimate resistance
  • : i 名詞1 (頂點; 盡頭) the utmost point; extreme 2 (地球的南北兩端; 磁體的兩端; 電源或電器上電流...
  • : Ⅰ名詞(指定的范圍; 限度) limit; bounds Ⅱ動詞(指定范圍, 不許超過) set a limit; limit; restrict
  • : 動詞(阻擋; 阻礙) block; hinder; impede; obstruct
  • : Ⅰ名1 (力量; 能力) power; strength; ability; capacity 2 [物理學] (改變物體運動狀態的作用) forc...
  • 極限 : 1 (最高的限度) the limit; the maximum; the ultimate limit; limitation; extremity; tipping point...
  • 阻力 : 1 (阻礙事物發展的外力) obstruction; resistance 2 [物理學] resistance; drag; drag force; nowel; ...
  1. Establishing an human spine dynamic model is an significan event to study spine injured biomechanics of pilot " s ejective injury, parachute opening, landing and study the endurance to impact loading on human spine. in this paper, the huston " s method of kane " s equations is developed so that it can be applied to the multibodysystem including translation between the bodyies. the dynamic model of human spine is provided basing on these theories, while the big movement of spine is considered. the deformation of vetebra is far smaller comparing with the intervetebra disc, so the spine is considered into multibodysystem including rigid bodies ( vetebra ) and the flexible bodies ( intervetebra disc ). the computer solution correspond with the results of the large scale human impact test. the rigid coefficient factors and the damping factor of intervetebra joints are obtained

    人體脊柱動學模型的建立對研究飛行員彈射救生、傘兵跳傘開傘、著陸等脊柱損傷的生物學以及研究人體脊柱耐受沖擊載荷的問題都具有重要意義.首先發展了凱恩方程的休斯頓方法,使其可應用於變形體連接的多體系統,並以此理論為依據建立人體整椎脊柱沖擊動學模型,此時考慮脊柱的大位移運動,每個椎骨的變形相對椎間盤的變形小得多,把脊柱看成由剛體(椎骨)和變形體(椎間盤)組成的多體系統.並以大型真人坐姿沖擊實驗結果進行了擬合,最後得到腰椎間關節剛度系數因子和尼系數因子
  2. The ratios of frictional resistance increment in the ultimate bearing capacity increment were 56 % ~ 88 %

    增量對樁承載的貢獻為56 % ~ 88 % 。
  3. Taking the contact stress, bend stress stiffness and temperature stress as the condition, taking the weight of the kiln tyre as optimization aim function, the redia and the width of the tyre are optimized general optimize methods just consider the affecting of the parameters to aim function, but in fact, structural parameters ( such as structure dimension, interval and so on ), physics and dynamics ( damp factor, conduct factor, friction factor material ' s elastic module strength limits and so on ), which would be changed after used. the difference are called discrepancy robust design ' s basic concept is : all design parameters " discrepancy will affect the aim funct ion and arouse the quality target discrepancy

    一般的優化方法,僅僅考慮了參數對其目標函數的影響,而實際情況下有些參數是變化的,產品的結構參數(如幾何尺寸、間隙等) 、物理和學參數如尼系數、傳導系數、磨擦系數、材料的彈性模量和強度等的設計值與製造后和使用中的實際值會有差異,這種差異稱為設計變量和噪聲因素的變差。
  4. Based on extensive investigation of construction technique history of chinese ancient buildings, the structure method, structure developing history and seismic behavior of chinese ancient timber structure buildings are analyzed in several respects of the structural system and form. through a series of experiments on constituent parts of chinese ancient timber building structure, including the tests on the corbels and brackets called dougong subjected to low cyclic reversed loadings, the tests on the wooden frame using the tenon - mortise joints as connections of column and beam subjected to low cyclic reversed loadings, the tests on vibration isolation effect of friction and slippage between column footing and their socle base, and a series of shaking table tests on a chinese ancient timber structure palace building mode under artificial earthquake at serving conditions, destroyed conditions and reinforced conditions, many valuable results of structures such as moment - curvature hysteretic loops of dougong structure and tenon - mortise joints under low cyckc reversed loadings, the static function, the seismic performance, energy dissipation, vibration reduction, energy - loss mechanism, nechanicalmode and failure mode were studied. aplenty of valuable parameters of the structure system were obtained, such as the natural period of structure, vibration modes, damping ratio, factor of vibration isolation, oscillate amplitude of ineitial accebration, velocity and displacement, magnitude of slippage, and the mechanism of structure failure and collapse etc. based on these research, the complete analysis of ancient timber structure under earthquake were carried out in which including mechanism analysis method, calculating mode, strength analysis of members and joints, strengthening methods for serving damaged ancient timber structure buildings were also taken into account

    依照宋代《營造法式》建造了抬梁式殿堂木結構構件及結構模型,對中國古代木結構中的典型構造如:柱腳在礎石頂面平擱簡支、柱架榫卯連接、柱高不越間之廣、側腳、生起、斗拱等的構造機理及結構功能進行了量化分析和實驗研究: (一)通過木柱石礎靜摩擦試驗,測定了柱腳與石礎古鏡面間的摩擦系數及摩擦隨上部結構荷載變化的規律; (二)通過單柱承載試驗,測定了古建築中木柱的受變形特徵、破壞模式、及模型材料的變形模量、承載變形等參量; (三)通過柱架低周反復荷載試驗,測定了柱架的抗側移剛度、柱架恢復特性及滯回曲線、榫卯張角剛度及其變化規律、柱架及榫卯的承載變形、及榫卯減振參數; (四)通過斗?低周反復荷載試驗和受壓試驗,測定了古建築木構件與木構件間摩擦系數,斗?抗側移剛度,斗?恢復特性及滯回曲線,斗?抗壓承載及受變形規律; (五)通過抬梁式殿堂間架模型振動臺試驗,測定了殿堂木構架結構自振周期,地震反應振形、尼特性及尼比;按結構分層特點對柱腳、柱頭和斗?層上的屋蓋的地震反應採用多點同步測量,對柱根滑移、榫卯變形、斗?的變形、復位、耗能減振參數等進行了定量分析。
  5. The soil plug has an important effect on the pile driveability, and the pile diameter has an important effect on the property of soil plug, too. then the plugged effect judging method and nonlinear model of soil plug of the large ( super large ) diameter, super length, deep penetration pile have been established. hyperbolic model of soil plug was also proposed to calculate the inside static resistance

    3 .土塞對大直徑、超長樁的可打入性有重要影響,而樁徑大小直接影響土塞特性,本文建立了大直徑(超大直徑) 、超長、深貫入樁土塞閉塞效應判斷方法和土塞非線性雙曲線計算分析模型,並提出了「內側動態分佈」模式。
  6. Abstract : based on the analysis of pipe ramming procedure, thi s paper presented the method calculating the ramming resistance force according to the results of strata pressure and dynamic probing, and the method calculating displacement, li mit length of rammed pipe and max. pressure inside pipe according to wave dynami cs

    文摘:分析了夯管錘夯入鋼管的過程,提出了依據地層壓和動觸探結果計算夯入鋼管的方法;還提出了應用波動學計算夯入鋼管位移、鋼管夯入長度及鋼管內最大壓應的方法。
  7. According to elasto - plasticity theory, with the help of finite - method program ansys, the paper undertakes the computer analogue tests about the bearing capacity of pile tip arranged by orthogonal principle, and attains the relations of pile - tip bearing capacity to embedment depth, pile diameter, cohesion, internal friction angle and modulus of deformation. by the means of mathematical statistic, regression equation of the ultimate bearing capacity calculated by finite element method is gained through the regression analysis of 81 group data from the computer analogue tests. by comparison and analysis of the values calculated by finite - element regression equation and the values of in situ loading test, the regression equation is gained which calculates the size effect for base resistance of large diameter pile

    根據彈塑性理論,運用大型有元軟體ansys按正交設計理論對樁端承載進行模擬計算,獲得樁端承載與樁長(埋置深度) 、樁徑、粘聚、內摩擦角及變形模量等主要影響因素的關系,並採用數理統計方法,對81組ansys模擬試驗結果數據進行回歸分析,得到有元法確定樁端承載的回歸公式,並將有元法回歸公式計算值與現場小壓板載荷試驗值進行比較分析,得到大直徑樁端的尺寸效應系數計算公式。
  8. The experiments show that the bearing capacity of super - long and large - diameter bored piles is mainly contributed by side friction, especially by their upper and middle parts, even under the bearing limitation, the ratio of base resistance to the total load is very low because of the soil residue at the bottom of piles, so this type of piles is friction ones

    試驗表明:即使在荷載下,超長樁的豎向承載仍主要由樁側摩提供,且主要集中在樁的中上段,下段摩很小,樁的端由於樁底沉渣的影響也難以發揮出來,所以超長樁為典型的摩擦樁。
  9. At last, in according to the experiment results, the interpretation of the mechanism of the slip phenomenon of prepressing - contact spring - damping system was given in this dissertation. further more, the relationship among the limit frequency, the value of prepressing, excitation frequency, the amplitude of excitation and the materiel parameter was analyzed. base on the theory analysis the limit frequency formula was given, and the contact - slip condition for engineering application was concluded

    最後根據理論研究與試驗分析的結果,分析預緊接觸式彈簧尼系統產生滑移現象的機理以及共振峰值漂移現象的理論解釋,並通過定性分析接觸分離時的頻率與預緊量、激勵頻率、激勵幅值以及墊層的材料參數之間的關系,提出能定量描述系統出現滑移現象的頻率公式,總結了預緊接觸式結構始終保持接觸的條件。
  10. Considering the engineering of trail pile in hubei jingzhou yangtze river highway bridge, the construction process of deep cast - in - place pile under pebble geological structure, the limit load - bearing capacity of single pile, side friction stress and head drag are researched in this thesis deeply

    論文結合湖北省荊州長江公路大橋的試驗樁工程,深入研究了江漢平原地區卵石地基深鉆孔灌注樁的施工工藝、單樁承載能、樁側摩和端
  11. It is provided by the result of observing for the trial of pile, if the cast - in - place is constructed according to strict technological process, the limit load - bearing capacity of single pile is more larger then its calculational value, and under the function of the most trial loading, the frictional drag haven " t occur yield in every major loading layer, so the pile have greatly safety reserve in engineering

    樁試驗的觀測結果證明,按照嚴格工藝流程施工的鉆孔灌注樁,其單樁承載能遠大於計算值;在最大試驗荷載作用下,各主要持層均未出現摩屈服現象,樁有較大的工程安全儲備。
  12. The result of macro - quality experiments show : mineral admixtures markedly slow the hydrating velocity of cement slurry, decrease and delay the hydrating max - temperature, in which steel slag is more effective ; expansive agents compensate concrete shrinkage, enhance the concrete dense degree, strengthen the interfacial layer between fiber and cement matrix and improve the physical mechanics qualities of acic ; minimal admixtures markedly improve the concrete workability property, increase the concrete later intensity & density and the capability of anti - chemical attack and anti - permeability ; hybrid fiber reinforces the toughness of obviously acic by the means of anti - cracking effect of fiber with different sizes and different properties in the corresponding construction levels

    實驗結果顯示:鋼渣摻合料能顯著減緩水泥漿體水化速率,降低砂漿的水化溫升並延遲最高溫升時間;補償混凝土收縮,提高混凝土密實度,加強纖維與水泥石的界面粘結,增強混凝土學性能,但不能明顯改善混凝土韌性。混雜纖維通過纖維的不同尺度與不同性質在相應的結構層次上產生裂效應,增韌鋼渣防滲抗裂混凝土;增加混凝土的破壞能,大提高混凝土抗彎曲能和韌性指數,改善混凝土脆性。
  13. The unified power flow controller ( upfc ) is one of the most enterprising realizations of the idea of flexible ac transmission system ( facts ). having the ability of controlling most of the basic power system parameters, upfc can flexibly adjust the real and reactive power through the transmission line, damp the oscillation, and enhance the stability of power system and so on

    統一潮流控制器( upfc )是靈活交流輸電系統中最有代表性的成員,具備控制多種電系統參數的能,因而可以靈活地調節線路有功和無功功率、尼系統振蕩、增強電系統的穩定性和提高輸電線路的傳輸
  14. Based on the formula which is used to compute the lateral resistance of single pile deduced by wang qitong, a formula is setup whose precondition is that the pile and the lateral soil directly around the pile deform in - phase. on the basis of that the contact stress of the foundation is equal, a formula that can be used to conform the stress - ratio of the composite ground is set up, on the same time, the principles of the deformation harmony of the soil and the piles in the composite ground are also discussed. combining with results of this test, a formula which can calculate the bearing capacity that considering the effect of group piles of the composite ground is also deduced

    視攪拌樁樁體為均質彈性介質,推導了復合地基中單樁有效樁長的理論計算公式;根據王啟銅柔性樁樁側摩計算公式,以樁側土與樁體協調位移為前提推導了柔性樁樁側摩的計算公式;以基底接觸應均勻分佈,樁體、樁間土均質為前提,討論了樁,土協同工作原理,從而得出復合地基樁、土荷載變形特性,以及樁、土應比計算公式;結合本次試驗,通過計算加載時樁體與土體的荷載分擔情況以及在狀態下樁土承載發揮值,提出考慮群樁效應的攪拌樁復合地基承載計算公式。
  15. In addition, the value of side friction by test in - site is large than that by surveying or suggesting of codes. that is to say, these designs are conservative

    另外,由試驗得出的該地區典型土層的值較規范推薦值和地質報告值大出很多,說明設計較保守。
  16. As the load increases, when the pile is no longer the pure friction pile, the method is also applicable for the cases that the pile has end support or the friction acting on the pile reaches limit

    隨著荷載的增大,當樁體不再是純摩擦樁時,計算方法同樣適用於有樁端或樁側摩達到值的情況。
  17. On the basis of construction technique of large diameter bored hollow pile of prestressing force concrete, through simulation test, this paper simulates the interaction of pile with side mediator and pile with end mediator respectively under different conditions of injected cement paste, analyses the changing regularity of ultimate skin friction in different depths and different mediators, and also studies the changing regularity of end resistance in different end mediators

    本文在對大直徑鉆埋預應混凝土空心樁的施工工藝分析研究的基礎上,通過室內模擬試驗,分別模擬樁與樁側、樁端介質不同注漿情況下的相互作用性狀,分析了樁側介質變化時不同深度處樁側的變化規律和樁端介質變化時樁端承載的變化規律。
  18. For the obvious yield point of angle steel, the critical frictional resistance could be regarded as ultimate pullout capacity

    對具有明顯屈服點的鋼材,在實際施工中,可以把摩臨界值作為
  19. The passage analyze the negative effect of migration on the income gap, describe the motivations, constraints and characteristics of migration, then analyze the discrimination on migrants in urban labor market and other aspects in a political economy approach. we find and criticize the reasons that urban interest groups discriminate the migrant in the neoclassical growth theory and public expenditure theory approach. the resistance of migration changes from non - historical normal institutions ( such as huko system ) to historical abnormal institutions ( such as employment discrimination )

    本文分析了人口流動對我國城鄉收入差異的消影響,描述了我國人口流動的動機、制條件以及特點,並給出了流動人口在城市勞動市場及其它方面遭到歧視的政治經濟學分析,我們從新古典增長理論和公共支出理論給出了城市利益集團歧視農村流動人口的理由,並對此進行了批判;指出人口流動的從非歷史性的正式制度(戶籍制度)向歷史性非正式制度(就業歧視)的演進。
  20. The paper draws some valuable conclusions : the limited bearing capacity of manual excavation filling pile is much higher than the limited bearing capacity of machine drilled filling pile ; through grouting injection around the pile shaft, the pile bearing capacity can be effectively improved ; proportion of resistance force around the pile side in total load is much larger than that of pressure on the pile tip, and the intensity of resistance force around the pile side is 30 - 50kpa on average

    得出一些有價值的結論:人工挖孔灌注樁的承載明顯高於鉆孔灌注樁的承載;地下水位對樁基承載有顯著影響;利用樁側注漿可有效提高樁的承載;樁側摩所佔總荷載的比例遠大於樁底壓,樁側土的摩強度平均值為30 50kpa 。
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