極限彈力 的英文怎麼說

中文拼音 [jíxiàndànlì]
極限彈力 英文
ultimate resilience
  • 極 : 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...
  • 限 : 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
  • 彈 : 彈名詞1. （彈子; 小球形的東西） ball; pellet 2. （內裝爆炸物, 具有破壞和殺傷能力的東西） bullet; bomb
  • 力 : 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...
  1. On the basis of investigations into the progressive yield process and the possible failure modes of rcc gravity dams, the quasi - elasticity design limit state of the ctrtical stability criterion is proposed and the real working state of the dams designed according to the ctriterion is discussed. a check formula using the material strength reducing factor as the safety index and a simplified formula similar to against sliding stability fromula are derived. finally, the corresponding design safety factors are given by using fem calculations with various influence parameters to be taken into account

    本文在研究碾壓混凝土重力壩漸進破壞過程和可能失穩方式的基礎上，提出了以準彈性臨界作為穩定臨界準則的設計極限狀態，分析了按該準則設計的大壩的實際工作狀態，導出了以準彈性強度儲備系數為設計安全指標的審查公式以及形式與抗剪斷公式相同的簡化公式，探討了定量計算考慮各種因素影響的相應設計安全系數的合理取值，並與現行規范方法進行了比較
  2. The current chinese foundation design code gbj7 - 89 use limit equilibrium theoiy with elastic soil stress distribution to give out bearing capacity design value calculating fonnula and use elastic soil model to evaluate foundation settlement. according to the above theories, code gbj7 - 89 gives the correlative terms. but these do not accord with the practical mechanism of loaded soil below the shallow foundation and the elastoplastic property of natural soil so defects exist

    我國現行規范gbj7 - 89將這兩者分開考慮，其計算地基承載力設計值的公式是根據彈性地基中應力分佈及土的極限平衡狀態理論為依據而得出的，求地基的沉降變形時則視土體為彈性，這些理論對地基及土的假設與淺基礎地基的實際工作狀態及天然土體的非線性、彈塑性存在一定的偏差。
  3. 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

    人體脊柱動力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力學以及研究人體脊柱耐受沖擊載荷的極限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力學模型，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阻尼系數因子
  4. The consequence is, when the majority of structure does n ' t enter yield habitus, but the position of belly - board has been reached the ultimate habitus, it lead to material waste of the other positions, we should pay attention to the disastrous result it will bright to us

    它帶來的後果就是當結構的大部分處于彈性狀態時，箱梁腹板處由於剪力滯效應一般最先達到強度極限狀態，導致腹板間材料的抗力沒有得到充分的使用，如不引起重視會帶來災難性後果。
  5. 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） 、物理和力學參數如阻尼系數、傳導系數、磨擦系數、材料的彈性模量和強度極限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。
  6. This paper demonstrates ultimate stress increment of unbonded tendons can be composed of approximate elastic deformation along the elements and local plastic deformation by nonlinear analysis on the unbonded partially prestressed concrete continuous structures. referring to the rule of ultimate stress increment of unbonded tendons at every load case, a regression formula of ultimate stress increment of unbonded tendons based on elastic - perfectly plastic model has been presented for engineers to calculate ultimate stresses of unbonded tendons in prestressed concrete multi - span continuous structures

    考慮在各種荷載工況作用下無粘結筋極限應力增量的變化規律，並與理想的彈塑性模型相比較，最終得出以理想彈塑性模型計算各種荷載工況作用下無粘結筋極限應力增量的回歸公式，從而為預應力混凝土多跨連續結構的無粘結筋應力設計計算提供有益的參考。
  7. Elastic theory and plastic theory are adopted in the analysis of the two section composite beam. elastic theory suggests, on the condition of the same steel beam section size, the composite beam for the floorslab is suited lower flanges convertion section stiffness cuts down by 75. 1 %, elastic limit bending resistant capability cuts down by 47. 9 %, than the composite beam for the floorslab is suited on the top flange. it s conversion section stiffness is lifted 8. 0 %, elastic limit bending resistant capability is lifted 0. 20 %, than the steel beam

    彈性理論分析的結果表明，在鋼梁截面大小相同的條件下，樓板位於鋼梁下翼緣的組合梁和樓板位於鋼樑上翼緣的組合梁相比，其換算截面剛度降低75 . 1 ，梁的彈性極限抗彎承載力降低47 . 9 ，樓板位於鋼梁下翼緣的組合梁和純鋼梁相比，其換算截面剛度提高8 . 0 ，梁的彈性極限抗彎承載力提高0 . 2 。
  8. Similarly, according to the deformation mechanism of ebsf and the virtual work theory, the influence of three different active beam links on the terminal carrying capacity, stiffness and ductibility of ebsf is deducted

    同樣，根據偏心支撐框架的幾何變形機制，應用虛功原理，重點推導並分析比較了分別採用d型、 k型或者v型支撐時對結構的極限承載力、彈性剛度以及延性的不同影響。
  9. The impact tests were carried out at the mid - span, and internal pressures of ompa, 5mpa, lompa and 15mpa were used in addition to the tests with water. the critical energy of perforation and the ballistic speed was measured, and the various types of rupture were identified from the section of the test specimens. force - time curves and internal pressure - time curves were obtained from experiment

    實驗中記錄了沖擊力時程曲線和內壓時程曲線，測量了鋼管軸向和周向橫截面的變形，得到了不同工況下的破壞模態、臨界穿透能量以及彈道極限速度，並找到了臨界穿透能量隨內壓的變化規律。
  10. With the material dynamic constitutive equation including damage and the effect of stain rate the predictable formula about ballistic limit velocity of fiber composite target. secondly based on the damage feature about ceramic / fiber composite target caused by impact load, analysis model about defense performance of ceramic / composite material target is formed and the predictable formula about ballistic limit velocity is also given. lastly using the reflection and projectile theory of stress wave the paper discusses the design of ceramic / composite material target, optimizes the design of double layer ceramic / composite targets, gains optimal coefficient under certain area density and discusses the variety relationship of area density and thickness with optimal coefficient u nder some ballistic limit velocity 3

    首先，分析了纖維類正交鋪層復合靶板在沖擊載荷作用下的損傷破壞機理，結合包含損傷和應變率效應的材料動態本構方程，建立了纖維復合材料板彈道極限速度的預測公式；其次，根據陶瓷/纖維材料復合靶板在沖擊載荷下的破壞特點，建立了陶瓷/復合材料靶板抗彈性能分析模型，給出了彈道極限速度預測公式；最後，利用應力波反射和透射理論討論了陶瓷/復合材料靶板的設計問題，對雙層陶瓷復合靶板的優化設計進行了分析，給出了在一定面密度下的最佳優化系數，討論了一定彈道極限速度下的面密度和厚度隨優化系數的變化關系。
  11. Thirdly writer, using linear elastic theory and finite element program ( ansys ), analyzed expanding bolt pullout test. fifthly, writer using the modified mohr - coulomb failure theory, on the base of curving failure surface, derived a theoretical formula between pullout force and compressive strength. then the thesis compared the formula with the strength - detecting formula of expanding bolt pullout method

    本文採用ansys有限元程序對脹栓拔出法試驗過程進行彈性理論分析；以修正的摩爾-庫侖破壞準則，在擬合實際破壞面的基礎上推導出極限狀態下脹栓拔出法的混凝土拔出力與混凝土抗壓強度的理論公式，並把該公式與脹栓拔出法測強公式進行了比較。
  12. In this paper, based on the analysis of the rlem of theory foundation, computing method, preference, applicability, etc, we anatomized the rlem of three self - deficiencies and six scarcities. moreover, we adopted the parallel ways of contrasting the rlem with the fem and applied it to analyzing the impact of slide block of elasticity and plasticity, slip surface of coefficient and slip bed of elasticity, plasticity upon the stability of slope and in the plain linearity slope, the plain refracted line slope and the plain arc slope. in addition, we discussed the warp of between the lem of ( sarma, janbu, order, bishop, morgenstera - price, etc ) and the fem of result and the distributing of positive stress and shear stress on the slip surface

    本文從剖析剛體極限平衡法的理論基礎、計算方法、參數選取、適用條件等方面入手，剖析了剛體極限平衡方法的3點自身缺陷和6點不足，並在此基礎上採用了剛體極限平衡法（平面滑動破壞法、 sarma法、傳遞系數法、普遍條分法、 janbu法、 bishop法、 morgenstern - price法）與大型有限元法對比研究的方法，分析研究了平面直線型滑坡、平面折線型滑坡、平面圓弧型滑坡在漸進破壞中邊坡的滑體彈塑性參數、滑麵塑性參數） 、滑床的彈塑性、以及極限平衡法無法考慮開挖應力釋放等因素對邊坡穩定性的影響與滑動面上的正應力、剪應力分佈規律、安全系數的解答的差異。
  13. This article describes a way of special ultrasonic system which monitors thermal stress in seamless welded rails. this monitoring system is a non destructive testing system, which adopts avr mcu and high - precise time chip processing as the core of it, and adopts the critically refracted longitudinal wave as the object of measuring. my studying focuses on the theory of the monitoring system, which will be listed in this arctile : according to the snell theory, the theory of motivating of critically refracted longitudinal wave is described in details, and the finite element software is used to emulate the propagating course. the formulas of calculating the pts of swr are taken from the acoustoelasticity theory, and the calculating the parameters is introduced. according to assemble materials, three kinds of ways of monitoring the pts of swr using critically refracted longitudinal wave are described, which are measuring the sound - time in changeless distance, ultrasonic critical - angle refractomery and frequency spectrum, the first way of ways is used in this experiment system. the factors, which effect the monitoring system, are assaid in some degree based

    本文的研究工作重點在無縫焊接鋼軌溫度應力測量系統的理論模塊，包括根據snell原理，研究極限折射縱波的激發機理，並使用有限元軟體ansys進行模擬;根據聲彈性理論以及公式推導出計算無縫焊接鋼軌中的溫度應力的公式，並對其中參數的求解方法進行介紹;根據收集的資料，介紹了三種使用極限折射縱波測量無縫焊接鋼軌溫度應力的方法，即固定距離測量聲時法、臨界角折射法和頻譜分析法，本實驗系統使用的是第一種;根據實驗經驗以及相關資料，分析了影響極限折射縱波測量溫度應力的幾個因素，並提出了相應的解決方法;根據實驗系統的需要，獨立設計並加工出相關配套的實驗設備，包括實驗鋼塊、有機玻璃楔塊、固定件、載荷外框裝置等。
  14. 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，運用大型有限元軟體ansys按正交設計理論對樁端承載力進行模擬計算，獲得樁端承載力與樁長（埋置深度） 、樁徑、粘聚力、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，得到有限元法確定樁端極限承載力的回歸公式，並將有限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，得到大直徑樁端阻的尺寸效應系數計算公式。
  15. 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阻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、激勵力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極限頻率公式，總結了預緊接觸式結構始終保持接觸的條件。
  16. Firstly, the shear and normal stresses of tapered members under the transverse load or axial load are analysed, and the stresses formulas are obtained which are different from those of the prismatic ones. secondly, research is done on the in - plane inelastic stability of tapered members under axial loads about strong axis and weak axis. a new design method is suggested in which the tapered member is equivalent to the prismatic member with the cross - section at the larger end of the tapered member

    同時由分析可知，目前採用的將變截面壓桿按照彈性極限荷載等效的原則等效成以小端截面為準的等截面壓桿的設計方法，在彈塑性階段低估了壓桿的承載力，即彈性等效的壓桿在彈塑性階段並不等效，實際變截面壓桿的承載力比等效的等截面壓桿的承載力要高。
  17. ( 3 ) by using an elastic - plastic material model, the nonlinear analysis is taken on the rectangular tube and simply supporte d plate, and the ultimate carrying load capacity pu is obtained. the results show that the buckling mode is in accordance with the assumption of elastic analysis, and so shows the ultimate mode

    （ 3 ）採用彈塑性模型，考慮幾何非線性理論，利用ansys軟體對矩形鋼管考慮板組相關屈曲影響和不考慮相關屈曲影響（將矩形管板件按四邊簡支板對待）兩種情況進行了屈曲後分析，分別得出其極限承載力p _ u ，並分析了矩形管的屈曲過程。
  18. Secondly, the mechanical respond of a typical asphalt pavement structure under heavy load was analyzed according to multilayer system elastic theory and characteristics of heavy loads, and analysis method of ultimate bearing capacity of asphalt pavements was advanced

    其次，利用彈性層狀體系理論，根據重載的荷載特性，分析了典型瀝青路面結構在重載下的力學響應，研究了瀝青路面極限承載力的分析方法。
  19. For the cantilever beam, the theoretical stiffness and limited capacity are slightly less than the test ones if considering only the steel beam and the reinforced bars in the negative moment zone with the concrete in the tension zone ignored

    結果表明：簡支組合扁梁，忽略彈性中和軸以下受拉的混凝土的影響，採用等效換算截面方法計算所得的剛度和極限承載力與試驗結果比較吻合；懸臂梁只考慮混凝土板中配置的負彎矩鋼筋，忽略混凝土，計算所得的剛度和極限承載力比試驗結果略微偏小，但相差不大。
  20. In the paper, the load incremental method is adopted. by the way of reducing the elastic model of the destructive blocks in the elements, the finite element analysis model is revised and the repeated computing process does n ' t finish until the results are converged. the proposed method can simulate the entire process of concrete structures from crack to complete damage

    分析中採用載荷增量法，對各級載荷下單元中破壞的材料分塊進行彈模折減處理，並重新生成單元剛度矩陣，經過多次迭代直至計算收斂，從而可以給出各類cfrp加固混凝土結構的載荷?變形全過程曲線，並預測其極限承載力。
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