極限強度下限 的英文怎麼說

中文拼音 [jíxiànqiángdùxiàxiàn]
極限強度下限 英文
lower limit of ultimate strength
  • 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
  • 強 : 強形容詞（強硬不屈;固執） stubborn; unyielding
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 下 : 下動詞1. （用在動詞后,表示由高處到低處） 2. （用在動詞后, 表示有空間, 能容納） 3. （用在動詞后, 表示動作的完成或結果）
  • 極限 : 1 （最高的限度） the limit; the maximum; the ultimate limit; limitation; extremity; tipping point...
  1. At the same time, i discover that the number of the return air inlet has a little influecing and it can be neglected. when there is hot resource at upperside of the room, the hot jet and supply air jet together affecting. at the same lower part heat intensity, a utmost wind speed exist, the supply air speed lower, the more heat intensity on the upside, the less convecting transfer heat, whereas

    對于上部有熱源的條件下，則其對流熱轉移量的變化關系是由熱射流與送風冷射流共同作用影響的，在下部熱源強度相同的條件下，存在一極限風速，在該風速以下，上部熱源強度越大，則對流熱轉移量越小，反之在該風速以上，上部熱源強度越大，則對流熱移量越大。
  2. Analysis of the vibration and extreme strength of very large pontoon under extreme wave loads

    極值波浪作用下大型浮碼頭振動與極限強度分析
  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。
  4. Here the hsc of sompa is achieved through adding super - effective water reducer, fined slag and silicon fume, and decreasing the water / cement ratio. by varying the area ( spacing ) of tension bars, compressive bars, vertical links and distribution steel and embedding steel fiber and polypropylene fiber we try to improve the behaviors of reinforced high performance concrete one - way spanning slabs in bending, so that its ductility be greater than 5. with the same arrangement of steel the width of bending member is varied to observe the effect of the width / depth ratio on the ultimate compressive strain of concrete

    通過變化受拉筋含筋率和受壓筋、箍筋（鉤筋、分佈筋）含量，或摻加纖維使之成為鋼纖維高強混凝土（ sfrhsc ）和聚丙烯纖維高強混凝土（ pfrhsc ） ，對高強混凝土雙筋截面梁、板的受彎性能進行了試驗研究，試圖改善高強混凝土受彎構件的延性，使其延性比大於5 ；並在相同配筋情況下，通過變化截面寬度，研究了高強混凝土受彎構件的寬高比對壓區混凝土極限應變的影響；並對試驗構件的裂縫發展情況進行了觀測。
  5. The research shows that : 1 ) the ductility of the hsc bending members constructed is much greater than 5 ; 2 ) increasing the vertical links and distribution steel can increase the deflection under ultimate moment ; 3 ) with appropriate compressive bars, vertical links and distribution steel the increase of moment after yield and the decrease of moment under ultimate moment can be ignored, so the ductility of the hsc bending member is much larger ; 3 ) the width / depth ratio of hsc bending member has no obvious effect on the ultimate compressive strain of concrete ; 4 ) the method used here to calculate the deflection is applicable ; 5 ) the location of crack coincides with the location of vertical links and distribution steel ; 6 ) the bending property of the hsc structure under the blast load can meet the demand of protective engineering

    研究表明：本文研究的梁、板構件的延性比遠大於5 ；增加箍筋（鉤筋、分佈筋）含量，可以提高壓區混凝土剝落時的撓度；在適當的受壓筋、箍筋（鉤筋、分佈筋）含量下，可以忽略壓區混凝土剝落瞬間的承載力下降，從而大大提高構件的延性；受彎構件的寬高比對壓區混凝土極限應變的影響不明顯；受彎構件的裂縫間距受箍筋（鉤筋、分佈筋）的布置影響；文中所用的承載力和變形計算方法是可行的。化爆試驗表明，高強混凝土構件的動載抗彎性能能夠滿足防護結構的要求。
  6. In the hogging condition, double bottom and the side shell remain the ultimate bucking strength, deck and upperwing tank remain the yield stress, and the other parts keep elasticity. then the key to calculate the ultimate strength of ship hull girders is to ascertain the ultimate bucking strength of the stiffened panels. in this regard, the developed formulation is designed to be more sophisticated than previous simplified theoretical method for calculating the ultimate strength of stiffened panels under combined in - plane bending and lateral pressure. fabricatio n - related initial imperfections ( initial deflections and residual stresses ) are included in the panel ultimate strength calculation as parameters of influence. all possible collapse modes involed in collapse of stiffened panels, including overall buckling collapse, column or beam - column type collapse, tripping of stiffeners and local bukling of stiffened web are considered

    確定了船體梁整體破壞時的剖面應力分佈之後，關鍵在於確定板架的極限屈曲強度。本文充分考慮了在縱向彎曲、橫向壓力作用下加筋板可能發生的幾種破壞模式，即板架的整體屈曲破壞、樑柱形式的破壞、筋的側傾、腹板的屈曲並同時考慮了初始焊接殘余應力、初撓度的影響，使其更精確的計算加筋板的屈曲強度。對于加筋板中加強筋腹板的局部屈曲，採用解析法推導出筋的腹板的撓度方程及其邊界條件，求解相應的方程，從而計算出腹板的局部屈曲應力。
  7. Kapton is used extensively on spacecraft primarily as flexible substrates for lightweight, high - power solar arrays because of its inherent strength, temperature stability, excellent insulation properties, ultraviolet ( uv ) stability and infrared ( ir ) transparency. however, polymeric material undergoes severe degration after being exposured on atomic oxygen ( ao ) in low earth oribit ( leo )

    聚合物kapton由於具有較高的比強度，優越的熱穩定性、絕緣性、紫外線輻射穩定性及紅外線穿透功能，是航天飛行器常用的材料，但由於空間環境中的原子氧對這種材料造成極大的損害，大大限制了這種材料在空間環境下服役時間。
  8. With this understanding, this paper chooses the longitudinal strength of hull girder as the disabled mode, by the calculation of fpso, predicts the ultimate strength and effective lifetime of the hull. expected results of examples are obtained, which provide the analysis data for the further risk assessment

    在此前提下，本文選擇了船體梁縱向強度失效模式，通過fpso實船計算，分析消化了理想單元法程序軟體，預報了船舶極限強度和安全有效壽命期，並用一階二次矩方法對完整受損船體的結構安全性進行了可靠性的評估，取得了預想的結果，為進一步實施綜合安全評估提供了分析數據。
  9. The ultimate longitudinal strength of container ships was analyzed by a simplified method

    摘要用簡化方法對集裝箱船進行了垂向彎矩和水平彎矩聯合作用下的極限強度分析。
  10. To meet this challenge, a research project was supported by ministry of communication and bv shanghai zhenhua port machinery co. ltd. focusing on analysis of tdtcd ( traditional design theories of crane drums ) the paper has studied the impacts of features under the binding force of wire ropes, the end - plate and rope slot. this study is based not only on the thin shell theory and viscoelastic mechanics to calculate the strength and stability of drum, but also on an experiment with technology in " state of act "

    本文結合交通部重點科技項目「港口起重機鋼絲繩傳動件高性能技術研究」和上海振華港機股份有限公司委託項目「起重機焊接捲筒極限壁厚研究」 ，針對起重機捲筒傳統設計方法偏於保守的情況，以薄殼理論和近代力學為基礎，以現代試驗技術為研究手段，對鋼絲繩緊箍力作用下的外載特性、端板、繩槽等因素對捲筒強度和穩定性的影響進行了系統的理論研究，在深入開展捲筒強度、穩定性和實驗模態分析等試驗的基礎上，提出了有別于傳統方法的捲筒強度、穩定性計算方法。
  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. Second, the random variables in reliability analysis of the steel rail are discussed. these random variables include the wheel load, the stiffness of the rubber pad and the bed, the temperature stress and the fatigue ultimate strength of the steel rail. and their probability distributions and parameters are discussed thoroughly

    其次，對鋼軌可靠度分析中涉及的隨機變量如輪載力、軌下膠墊剛度、道床路基聯合剛度、溫度應力及鋼軌疲勞極限強度的概率分佈類型和統計特徵進行了詳細討論。
  13. The aims of this thesis are buckling and ultimate strength. its main content is as follows : emphasizes the significance and purpose of the research in buckling and ultimate strength, and reviewing the status in this field, and puts forward the research task ; analyzes and discusses the design formulations for the buckling strength of the ship plating, in which the influence of residual stresses, lateral pressure, cut - outs and rotational restrains is taken into account

    本文以船體板的屈曲和極限強度為研究目標，主要內容有： ?指出研究船體板屈曲和極限強度的意義和目的，簡要回顧了國內外的研究現狀。並提出本文的研究內容； ?考慮殘余應力、側向壓應力、開孔和扭轉約束對于板格的屈曲強度的影響，討論了各個因素影響下的板格的屈曲強度計算公式。
  14. This thesis used along caldwell ' s direct calculation method of the ultimate strength of ship hull girders, considered the double bottom and upperwing tank to ship ultimate strength contribution, first defined the stress distribution of the whole section of the ship girders. that is : in the sagging condition, deck and side shell of nearby deck remain the ultimate bucking strength, double bottom remain the yield stress. and the other parts keep elasticity

    本文沿用caldwell等人直接計算船體極限強度的思想，考慮雙層底和頂邊水艙對船體極限強度的貢獻，首先將船體梁整體破壞時剖面應力分佈確定為：在中垂狀態下，甲板及甲板附近的舷側均屈曲，雙層底區域則均屈服，其他部分保持彈性狀態；在中拱狀態下，雙層底及之間的底舷側均屈曲，甲板及頂邊水艙區域均屈服，其他部分則保持彈性狀態。
  15. Comparing with these several strengthen formal, towards strength limit ' s improvement, the effect of torsion - tension and tension - torsion - tension was close ; simply tension - torsion - tension required a little larger prestrain quantity. whereas, towards yield limit " s improvement, the effect of torsion - tension - tension action ' s strengthen was the best

    從幾種硬化形式的比較來看，對于強度極限的提高，扭轉-拉伸和拉伸-扭轉-拉伸的強化效果相近，只是拉伸-扭轉-拉伸所需的預應變量要大一些；而對于屈服極限的提高，扭轉-拉伸-拉伸作用下的強化效果最佳。
  16. This paper trice to find the cause of effective ness loss and to analyze it theoretically by adopting the ways of quantitative analysis and quantitative analysis by using the way of fault tree to carry out the qualitative analysis, it draws the logic charts by various elements that cause the loss of effectiveness and to make a faucet tree to find out the loss programs, then make a final analysis of the smallest element of the fault tree. the first problem is due to the over friction by exceeding permitted limits ; the second problem is due to the gear feather ' s low inteusity, this paper adopts the method of changing the trans mission ratio of the first gear and the width of the sixth gear of second shaft so as to solve the problems

    本文採用定性和定量相結合的方法，利用失效樹進行定性分析，它通過對可能造成系統失效的各種因素，畫出邏輯框圖，從上到下繪成失效樹，找出失效譜，並對失效樹的全部最小割集進行分析，找出有可能的失效原因，再對其通過理論計算進行定量分析，由此發現第一個問題是由於離合器在極限狀況下的滑磨功超過其許用值造成的，第二個問題的原因是二軸六檔齒輪強度不足。
  17. 5 ) the simplified method to calculate the ultimate strength for the asymmetrical hull is presented based on the revised paik " s method ( rpm )

    5 ）在改進p磁簡化公式的基礎上，提出了不對稱彎曲條件下的船體極限強度計算的簡化方法。
  18. By using a simplified direct energy approach together with marguerre ' s plate theory and some appropriate hypothesis, a simple closed - form solution is found. in a summary, a simple method of determining the ultimate strength of ship deck structures under inplane compressive loads is developed by analyzing and discussing the modes of failure

    最後，在總結上述研究內容的基礎上，對船體中的甲板結構的各種失效模式進行了綜合分析，找出各種失效模式下相應的適合工程計算和程序化的求解極限強度的簡化公式。
  19. Several types of buckling mode and several types of collapse mode for the stiffened panels are mostly analyzed. it is emphasized on the influence of position of loading plane on the ultimate strength of stiffened panels and numerical calculation of stiffener tripping. at last the interaction of ultimate strength for stiffened panels combined different loads is discussed

    文中主要分析了加筋板的幾種屈曲模式和幾種失效模式，並著重討論了加載偏心對極限強度的影響和加筋板的側傾強度數值分析，和簡單討論哈爾濱工程大學博士學位論文了組合載荷作用下的加筋板極限強度的相互關系。
  20. The results showed that the stress - strain realtionship of pt could be expressed with exponential functions, and there were significant differeces between the normal group and the immobilized group in their theoretical curves of stress - strain relationship and two material constants of pt. also, significant differences were found in tensile strength and tangent modulus between the two groups, but the maximum load of pt in the immobilized group did not decrease significantly

    結果顯示：正常組與制動組間髕韌帶的應力-應變關系理論曲線有明顯不同，其材料常數亦有顯著差異；制動組髕韌帶的極限強度和彈性模量較正常組均有明顯下降，其極限載荷下降不明顯。
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