極限分解力 的英文怎麼說
中文拼音 [jíxiànfēnjiělì]
極限分解力
英文
limiting resolution- 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
- 分 : 分Ⅰ名詞1. (成分) component 2. (職責和權利的限度) what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] (料想) judge
- 解 : 解動詞(解送) send under guard
- 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...
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Based on the destructive test of certain old pre - stressed concrete hollow slab after structural strengthening by cfs, the destructive mechanism and ultimate bearing capacity of old pre - stressed hollow slab after structural strengthening is being researched, which is useful for the strengthening design of old bridge and solvating of single slab problem
摘要通過某已使用10年的舊橋預應力混凝土空心板受拉區碳纖維布加固后的破壞荷載試驗研究,對受拉區加固后的舊橋預應力混凝土空心板的破壞機理、變形性能及極限承載能力等進行了研究,為舊橋預應力混凝土空心板的加固設計及單板受力問題的分析解決提供了試驗依據。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。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。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。In this paper, explicit solution for bishop method is deduced on the base of stress distributing along the slip surface which is assumed beforehand. moreover, optimization method for slip surface is introduced in the following process. the whole process is so simple that easily mastered by engineers
本文基於極限平衡理論,在事先假定滑面上應力分佈形式的基礎上,推導了畢肖普法的顯式解,並且在此基礎上介紹了滑弧優化方法,其方法簡單,很容易被工程人員掌握,同時也簡化了利用畢肖普法分析邊坡穩定的過程。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。Tow speciments of prestressed fabricated beam - column subassembly were tested under reversed cyclic loading. experimental studies were carried out to investigate the strain distribution, failure mechanism and load - bearing capacity on the beam - column connections, as well as ductility, hysteresis curves energy dissipation, displacement restoring capacity of full pc speciments
本文通過兩榀預壓裝配式樑柱組合體在低周反復荷載下的試驗,了解了預壓裝配式框架梁端截面應變分佈、破壞機理和極限承載能力;探討了全預應力配筋截面延性特徵、滯回性能、耗能能力和變形恢復能力。Based on the method of limitation analysis of soil plasticity, researching from the soil arching mechanism of soil - nailing retaining, the upper limit of the critical height of soil - nailing slopes and the minimum horizontal length from coping of the potential slide surface to the edge of deep excavation are obtained through the analysis to weight of soil and vertical loading and the mechanism of soil and soli - nailing acting reciprocally
摘要基於土的塑性極限分析方法,以均質土坡為例,從土釘支護結構的準粘聚力理論出發,綜合考慮土體自重、坡頂的條形荷載,以及土釘與土體的相互作用的機理,推導出了土釘支護的臨界高度的上限值和潛在螺旋曲線滑動面在坡頂方向距基坑邊沿的最小水平距離解析表達式,可供基抗支護設計參考。With reference to the practical design of a bridge, the stability and ultimate carrying capacity of the elevated pile caps of the bridge are computed by numerical method known as elasto - plastic finite element analysis
結合某橋設計實踐,按彈塑性有限元方法,對高樁承臺的穩定性進行了分析,解算了結構的極限承載力。2. by using the internal force - decomposability method, a numerical means was applied for the analysis of the test data, so we can probe into the situation of the internal force change on the steel and rpc, based on these, the simplified calculating formula is suggested
2 、採用內力分解分析法,對圓鋼管rpc試件試驗數據進行數值分析,分別探討了圓鋼管rpc在極限荷載狀態下的鋼管和rpc各自的內力變化情況,據此,提出圓鋼管rpc極限承載力的簡化計算公式。Especially, when the isocline of x is monotone decreasing in 0 < x < 1, the svstem has no limit cycle and is globally stable ; next, we construct a saddle bifurcation at the boundary equilibrium and a degenerated bogdanov - takens bifurcation at the interior equilibrium by choosing appropriate parameter values in the following two sections, where our work are based on the theory of central manifolds and normal torms. we prove that is a codimention 3 focus - type equilibrium. system ( 6. 1 ) will have two limit cycles at some appropriate bifurcation parameter values, and have homoclinic or double - homoclinic orbits at some other appropriate bifurcation parameter values ; at last, we study the qualitative properties of the system at infinite in the poincare sphere
因為系統在( 0 , 0 )點處沒有定義,這給研究其在( 0 , 0 )附近的動力學性質帶來了困難,我們應用文獻[ 17 ]中關于研究非線性方程奇點的系列理論和方法,圓滿解決了這一問題,給出了第一象限內當t +或t -時,在全參數狀態下系統的軌線趨于( 0 , 0 )點的所有可能情況,其相圖也得以描繪;並且,系統不存在極限環的幾個充分條件我們也予以列出,當x的等傾線在0 x 1范圍內遞減時,系統不存在極限環,全局漸近穩定;然後,我們以中心流形定理和正規型方法為主要工具,巧妙選擇參數,分別構造了一個余維2的鞍點分岔和一個余維3退化bogdanov - takens分岔,證明了平衡點是余維3的焦點型平衡點,存在參數, m ,的值使得系統( 6 . 1 )有兩個極限環,還存在參數, m ,的另外值使得系統( 6 . 1 )有同宿軌或雙同宿軌。Bearing capacity and displacement are two main problems in the application of geotechnical engineering. based on a series of pull - out tests using three kinds of paper and a sort of window screening as geogrid, twenty - seven in limit and several in working - stress geogrid - reinforced slope model tests designed through orthogonal principle have been conducted to have obtained the relationship between the bearing capacity and four factors ( i. e. reinforcement, angle of reinforced slope, the designed - length of reinforcement and the distance between layers of reinforcement ). the law of slope lateral ( horizontal ) displacement versus to the height of slope vary with external - load was derived from the model test data, and the main factor affecting the lateral and vertical displacement of geogrid - reinforced slope was obtained through analysis
承載力(強度)和變形是巖土工程應用領域的兩大主要問題,本文以紙和窗紗布模擬加筋土邊坡的土工格柵,在一系列拉拔試驗的基礎上,以正交設計理論分別安排27個極限應力狀態和若干個工作應力狀態加筋土邊坡模型試驗,並以模型試驗獲得的數據為依據,採用誤差、極差及回歸分析方法,探討了加筋土邊坡承載力與筋類、筋長、層間距、坡角4因素的相關關系,獲得了在外荷載作用下加筋土邊坡的側向位移隨坡高的變化規律(並進行了定性解釋)和坡頂的豎向位移特性,並分析其主要控制因素。Analytical solution of bearing capacity of circular shallow foundations using upper - bound theorem of limit analysis
圓形淺基礎地基承載力極限分析的上限解析解A theoretical analysis of local damage in a thin ductile tube hit by a flat - nosed missile laterally is developed to predict local failure due to plugging by the beam - on - foundation model. the effect of internal press was considered, and differential equations was obtained which can predict the ballistic speed of the missile which impact the tube filled with water. it can be solved by runge - kutta method
採用地基梁模型對平頭彈體側向沖擊鋼管的沖塞型破壞模式進行了理論分析,考慮了充壓情形下內壓的影響,導出了鋼管在沖擊過程中的運動方程,可以用龍格?庫塔法進行數值求解來確定彈體沖擊充液壓力管道的彈道極限速度。At present, limit equilibrium method is one of the conventional slope stability analysis methods. it ca n ' t consider nonuniformity of mechanical characteristic of landslide body and its rock bed and the effect of stress distribution on the gilding surfaces, since the rigid body assumption is adopted in this method. furthermore, this method ca n ' t accurately consider inactive forces between slices
目前常用的邊坡穩定分析方法中的極限平衡法由於採用了剛體假定,無法考慮塌滑體及其基巖力學特性的不均勻性和滑動面上應力分佈的影響,此外還不能準確考慮條塊間的作用力,而另一種常用的邊坡穩定分析方法? ?常規有限元分析方法,當滑動面全部處于屈服狀態或邊坡的實際抗滑穩定安全系數小於1時無法求解。Constructure forms and work principles of hydraulic vavle lifter ( hvl ) in four kinds of classic internal conbustion engine is introduced ; designment and application of oil - intake line, oil - reservoir volumn, and limit position of plunger running in hvl and requirement of hvl on lubrication system and valve train mechanism of internal combustion engine are analyzed ; in the meanwhile, corresponding solutions are put forword
摘要介紹了4種典型內燃機液力挺柱的結構形式及工作原理,對液力挺柱在設計和應用中進油道、儲油室容積、柱塞工作極限位置及液力挺柱對內燃機潤滑系和配氣機構的要求等幾個問題進行了分析,並提出了相應的解決方法。Firstly under the actions of certain harvesting efforts given we analysed the asymptotical properties of the system and investigated the positive limit set of any positive initial - valued solution
首先,分析系統在給定的捕獲努力量的作用下的漸近性態,研究系統任一正初值解的正極限集On this basis, the upper - limit solution calculation formula of ultimate bearing capacity gotten by limit analysis theory is modified
在此基礎上,對由傳統極限分析方法得到的底板極限承載能力上限解的計算公式進行了合理的修正。The linear solution and nonlinear solution were compared, the structure ' s obvious geometrical nonlinear character was found. then the buckling analysis of the structure was made, and compared corresponding dome, the conclusion was made that ribbed truss and pre - stressed cables improved the structure ' s limit buckling load. at one time, the buckling analysis of structures with different rise - to - span were made, and discovered that buckling load and stability can be improved with high rise - to - span
通過對該結構的線性解和非線性解的比較,發現結構具有明顯的幾何非線性特徵;對加肋預應力穹頂結構作了屈曲分析,並將它的結果與相應的單層網殼作了比較,得出了由於肋桁架和預應力索的存在,加肋預應力穹頂結構的極限載荷大幅度提高,比一般的單層網殼結構具有更好的穩定性能的結論。Adopting the conceptions of thin - walled member theory, studies on linear elastic analysis and ultimate strength behaviors of curved i - beams are presented in this paper, which may give helps to a deeper understanding of the behavior of curved beams and provide a reasonable design guideline
本文依據薄壁構件理論,通過對工字形截面圓弧曲梁的線性分析、穩定理論和極限承載力等問題的研究,旨在進一步了解這類構件的工作特性,並為工程設計提供一定幫助。分享友人