撓曲面 的英文怎麼說
中文拼音 [náoqūmiàn]
撓曲面
英文
deflection surface-
Then a high - degree geometric continuity blending surface is obtained with transfinite interpolate method. ( e ) g3 blending surface with approximation can be constructed by lofting if geometric invariant errors are given, the surface can be converted to b - spline, nurbs form for the purpose of system aggregation
最後,為滿足曲面造型系統集成的需要,在保證曲率、曲率導數和撓率精度情況下,將上述研究結果應用於曲面放樣逼近方法,得到參數過渡曲面轉換成b樣條曲面或nurbs曲面的形式。First, using strip - partitoning method and programming in matlab language, the numerical caculations of the relation curve between moment and curvature are done for the beams strengthened with non - prestressed and pretressed cfrp sheets, base on the assumption of plane section, non - bonding slip and non - peeled destroy. secondly, nolinear finite elemeant analysis by ansys are done for the beams strengthened with prestressed cfrp sheets base on the three assumptions before mentioned, the analysis are all done for the relation curve between load and displacement, the distribution of material stress, the distribution of cracks. lastly, calculation formula of flexural capacity and deflection are proposed
)的全過程關系曲線。其次基於上面的三個假定,選擇合理的本構關系,利用ansys通用有限元分析程序對預應力碳纖維布加固梁進行非線性有限元分析,分析了加固梁的荷載-撓度關系、材料的應力情況、裂縫的分佈情況等。最後提出了承載力計算公式和正常使用狀態下撓度計算公式。According to eigenvalue equation ( general formula ) of the energy method of the plane steel frame structure stability, and considering the restriction of the end of the column of the main steel frame and function of deflection curve gained from the differential balance equation general resolution, we get the equation for calculating the length coefficient of the main frame structure stability of the steel arch gate and the resolutions are also given
根據平面剛架穩定性能量法特徵值方程(通式) ,考慮弧形鋼閘門主框架柱的柱端約束的特殊情況,求出撓曲線函數(試解函數)通解,得到弧形鋼閘門主框架柱穩定性計算長度系數方程。其中弧門主框架主橫梁式形框架的臨界荷載比較現行規范推薦的有限元法簡單方便、結果精確及物理概念明確等優點。The following results are obtained : ( 1 ) the flow in rotating helical pipes are affected by dean number, curvature, torsion ( or germano number ), the ratio of the coriolis force to the centrifugal force f number ( or rossby number ) and the geometry of the cross section
研究結果表明: ( 1 )旋轉螺旋管道流動特性受dean數、曲率、撓率(或germano數) 、科氏力與離心力之比f數(或rossby數)以及截面的形狀五種因素的影響。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。Depositional cycles on basin scale have been interpreted as the result of depositional response to tectonism such as episodic rifting, polyphasic compressive flexural subsidence and reversion, and differential subsidence of fault blocks ; while the formation of high frequency sequences was attributed to variation in lake level and sediment supply
盆地規模的沉積旋迴多是盆地幕式裂陷、多幕擠壓撓曲沉降、多期構造反轉、斷塊差異沉降等構造作用的沉積回應;高頻層序單元的發育則主要與湖平面和沉積物供給量的變化有關。Road testing. measurement of a rolling load deflection. part 7 : determination of deflection and curvature values using curviameter
路面試驗.滾動加載撓度測量.第7部分:用曲率計測定撓度和曲度值The flexoelectric effect will arise when an external uniform electric field is applied in the plane of slab and the director of liquid crystal will also generate a very small transformation
沿面外加一勻強電場,將會產生撓曲電效應,使得液晶指向矢分佈發生了一個很小的變化。The mathematic model of the ultra - thin spherical mirror is to be treated as elastic thin shell. then the predigested model, i. e., bended beam, used in qualitative analysis was proposed, and its deflection and stress formulas under the freely supported condition were set up. based on an off - axis aspherical primary mirror, the relationship of aspherical surface error ( rms ) in tangential plane with bended beam ’ s radius r, position s of concentrated load p and geometry length l of arc was analyzed
根據這一設想,本文建立了超薄鏡的數學模型?薄殼,並提出了強制力作用下超薄鏡的簡化模型?曲梁,推導了曲梁在簡支情況下受力變形的撓度公式,並結合一個實例,計算出曲梁變形后與所需非球面的面形殘差( rms )在子午方向與曲梁弧長l 、曲梁半徑r及集中力位置s的關系及滿足面形精度的r和s范圍,分析了弧矢方向的rms ,得出了同時滿足子午和弧矢方向面形要求的l 、 r和p 。The static loading test for three group of testing piles of jiading power plant secend stage project are analyzed and studied in this thesis, and the practical applying of high - accurate data collector, technique of waterproof insulation and testing technique of burying in the body of pile are introduced also. the vertical and horizontal loading features of three group of piles of different kind and constructing technique in different earth layer at the pile point are analyzed and compared and summed up with basic integro - differential equation calculating the pile earth system load transmit, transforming principle of stress - deforming and pile body rating of burying electric measuring element. changing law of stress, and changing law of pile body shifting and bending for different testing piles under vertical and horizontal load are showed so that the loading features of soil layer and pile at testing spot, reliable design data for pile type and base for scientific construction technique are provided
本文僅就嘉定電廠二期工程中的三根試驗樁的靜載試驗進行了分析和研究,利用樁土體系荷載傳遞分析計算的基本微分方程及應力-應變轉換原理,結合預埋電測元件的樁身率定,對三組不同種類、不同施工工藝、不同持力層中的樁的豎直、水平承載特性進行了分析、比較和歸納,通過大量、全面的實測數據,經過整理、轉換和推演,揭示了不同試驗樁在豎直、水平荷載作用下的應力變化規律和樁身變位、撓曲變化規律,最終提供試驗場地土層和樁的承載特性,為該工程合理設計樁型提供了可靠的設計參數,為確定科學的施工工藝提供了有力的依據。In the procedure, the column is first divided into a finite number of small segments in equal length. the deflection - curvature relation of each segment is determined using the finite - difference method. the final nonlinear algebraic equations are then obtained by means of the equilibrium condition for each segment
運用這種方法,先將長柱離散成若干等長的柱段,利用差分方法求得各柱段截面上的撓度與曲率的關系,再根據各截面上外力與抵抗力的平衡條件,得到一組關于荷載與變形關系的非線性代數方程組;本文對該方程組採用載荷增量法進行迭代求解。On the basis of relative researches in the world, according to the study status of steel - concrete composite slab, which would be widely used in modern bridge, modified equivalent inflexibility of steel - concrete composite slab was deduced by use of conversion section principle in this paper ; based in this, this paper put forwards the theory of ultimate flexural capacity of steel - concrete composite slab in consideration of slip effect, and introduces the practical simplified method for calculating flexural deformation of steel - concrete composite slab in consideration of the effect of steel studs and welded wire, and conclude that the methods in this paper is veracious and reliable, comparing with the traditional calculating mode ; morever, this paper put forwards the calculating theory and program of the effect analysis of creep and shrinkage to steel - concrete composite slab, using conversion elastic modulus principle, and testifies that the theory is right and the program is reliable and practical
本文在國內外研究成果的基礎上,針對壓型鋼板與混凝土組合板結構在現代橋梁建設中廣泛應用前景和研究現狀,利用換算截面法導出了壓型鋼板與混凝土組合板結構的修正等效慣性矩;在此基礎上,又推出了考慮壓型鋼板與混凝土之間的相對粘結滑移影響的壓型鋼板與混凝土組合板結構極限抗彎承載能力計算理論,並介紹了考慮栓釘、聯結件影響的壓型鋼板與混凝土組合板結構簡化實用撓曲變形計算公式,而且通過與傳統計算理論的分析比較,表明本文提出的計算理論公式的準確可靠性;此外,採用換算彈性模量比法著重提出了壓型鋼板與混凝土組合板結構的徐變、收縮效應分析的計算理論和程序,並通過實例分析計算證明了理論的正確性、程序的可靠性和實用性。4. choosing the reasonable deflection curve function. according to the energy method and the constrained condition of column end of the steel arch gate, the article presents a practical calculating formula for the stability of the main frame structure of the steel arch gate
選擇合理的撓曲線函數(試解函數) ,根據能量法及弧門柱端約束條件,提出弧形鋼閘門主框架(平面鋼框架)穩定性計算的實用解析計算公式,並根據影響弧門主框架穩定性的因素對該公式進行修正。With a voltage operating, the flexoelectric effect for a nematic liquid crystal ( nlc ) cell has been investigated theoretically with an analytical approach, and the absorption of ions has not been taken into account. the equations and the boundary conditions of the nlc tilt angle 6 have been deduced
文中假定液晶在界面處沒有離子吸附,導出了電場作用下指向矢傾角滿足的方程和邊界條件,以及撓曲電效應引起的表面能,該表面能在上下基板處形式相同但是符號相反。Meanwhile, the paper has analyzed the influences of fatigue, damnification, bend and liquid collision to sucker rod breaking as well, and suggested some positive measures to avoid sucker rod breaking according to the characteristics of sucker rod breakin in guangbei area of bamianhe oilfield
同時,對于因抽油桿疲勞、損傷、撓曲、液擊對抽油桿斷裂的影響也進行了分析,並針對八面河油田廣北區抽油桿斷裂的特點提出了積極防治對策。Moreover, the director distribution symmetry to the mid layer of nlc celliias been broken by the flexoelectric effect. a new parameter a is introduced to express the symmetry breaking and has been investigated in detail
此外,本文還證明了撓曲電效應還會導致指向矢分佈對中間層平面對稱性的破缺,引入並詳細研究了表徵對稱性破缺的參量。Standard test method for measuring rubber deterioration - cut growth using ross flexing apparatus
用羅斯撓曲裝置測定橡膠損壞斷面增量的標準試驗方法The paper gives a summary for the current technology situation of foreign and civil in the field on torsion and distortion of box gird bridges. by general bending theories, transfer matrix methods is used in the torsion and distortion of continues box gird bridges
在分析變截面連續箱梁扭轉與畸變內力時所採用的方法是一種比較實用的計算方法即傳遞矩陣法,研究任意變截面連續箱梁的扭轉、畸變及橫向撓曲。Nowadays, the pcc pile have been widely used for soft ground improvement and application of foundation engineering. the behavior of pcc pile, that subjected to lateral load has been studied in this paper. the behavior of the pcc pile has involved moment and horizontal displacement and load of pcc pile. they are studied by in the physical model experimen, field test finite element numerical analysis, and exponential progression solution. in additional, the comparatively computal analysis are carried out among pcc pile, cast - in - situ concrete circular pile, prefabricate concrete square pile, and obtain some signification conclusion
本文主要圍繞現澆混凝土薄壁管樁(以下簡稱pcc樁)這一新型的樁基結構型式的水平承載性狀展開研究,通過室內模型試驗、現場試驗、有限元數值模擬分析試驗及彈性冪級數解析法分析等手段,對pcc樁水平承載的樁身受力性狀,樁身撓曲位移,樁身彎距分佈,樁與樁周土相互作用的地基反力等幾方面進行了初步的探討和研究,最後將pcc樁與目前工程中的兩種常用於承受水平荷載的樁型進行對比計算分析,得到有意義的結論。The director of liquid crystal will generate an evident transformation due to the flexoelectric effect induced by an external invariant voltage normal to the plane of the glass plates
沿垂直於玻璃基板表面的方向加一恆定的電壓,由於撓曲電效應的影響,液晶指向矢將會發生明顯的變化。分享友人