翹曲力 的英文怎麼說
中文拼音 [qiáoqūlì]
翹曲力
英文
buckling force-
Based on the three new supposition and the tow new mechanical tools : moment vector and radius vector, the warping theory introduced the analytical method of the rotation of a cross section around a fixed axis, so as to make the space stability of the thin - walled member complanate and one - dimensioned
翹曲理論以三條新的假定和新建立的彎矩矢量和轉角向徑兩大力學工具為基礎,提出了繞定軸轉動的分析方法,使薄壁構件的空間變形平面化、一維化。Although aircraft designers and engineers continued to employ wing - warping techniques for years afterward ( especially on early monoplanes such as the bleriot xi ), ever faster flight speeds eventually led them to beef up wing structures to resist the resulting stresses
雖然其後許多年間,飛機設計師和工程師仍繼續採用翹曲機翼設計(尤其是布雷修xi型等早期單翼機) ,但由於飛行速度不斷提升,終于迫使他們加強機翼結構,以承擔所增加的應力。Abstract : thermally induced stress and the relevant warpage cause by inappropriate mold design and processing conditions are problems that confounded the overall success of injection molding. a thermorheologically simple thermoviscoelastic two - dimension material model is used to simulate the residual stress and warpage within injection molded parts generated during the cooling stage of the injection molding cycle. the initial temperature field corresponds to the end of the filling stage. the fully time - dependent algorithm is based on the calculation of the elastic response at every time step. numerical results are discussed with respect to temperature and pressure
文摘:不均勻的熱殘余應力及其變形是注塑成型加工中常見的工程問題之一.應用熱流變簡單材料的二維熱粘彈本構方程得到的遞推公式,數值模擬了成型中的熱殘余應力及其翹曲變形,並用數值實驗討論了溫度、壓力對注塑件殘余應力及變形的影響,發現溫度變化不均勻是注塑件翹曲變形的最主要原因,其影響遠大於壓力的作用,與工程實驗的結論一致When analyzing skew support continuous curved box girder bridge, curved grid girder analyzing method considering warping effect is applied. matrix displacement method is applied in analyzing skew support continuous curved thin - walled box girder bridge with restrained bearing. in order to convert original rigidity equations to structural rigidi ty equations that can be solved, bearing nodal displacement matrix can be introduced, then unknown quantities at the edge of beams can be consistent with the restrained directions of skew bearings, unit rigidity matrix and unit nodal forces can be gained. structural rigidity matrix can be composed according to matrix displacement method, so nodal displacements and inner forces on the end of the rod that are unknown can be gained calculating equations of inner forces on any cross - section can be solved
分析斜支承連續曲線箱梁橋時,採用考慮翹曲作用的曲線格子梁分析方法,應用矩陣位移法對具有約束支承形式的斜支承連續曲線薄壁箱梁橋進行分析,考慮到支座的約束條件並不與梁端彎曲角位移和扭轉角位移的方向一致,引入支座節點坐標矩陣,使得梁端的位移未知量與斜支座約束方向一致,來計算單元剛度矩陣和單元節點力,然後按照矩陣位移法組集總剛並建立結構剛度方程,根據結構剛度方程即可求解未知的節點位移及桿端力,推導出任意截面處的內力計算公式。Calculation of thermal warping stresses in cement concrete pavement slabs
水泥混凝土路面板溫度翹曲應力Frame : strictly high - temperature sterilized, dried ( moisture content 8 % ), fine hard timber is used for sofa ' s frame so that the problems of being insect - eaten, bent or deformed can be avoided and the sofa can have a long life
骨架材料:均採用經嚴格高溫殺菌,烘乾(平均含水率為8 % ) ,握釘力及靜曲強度高的優質硬木材料做沙發骨架,徹底避免出現蟲蛀、翹曲、變形等質量問題,保證沙發經久耐用。The camber development mechanism and the influence factors were researched by geometry analysis, viscous analysis and sintering kinetics analysis. the camber model was established and the equation for calculating curvature of camber was proposed. the influence factors for camber involve the original size of composite, the sintering properties and the shrinkage mismatch between the two materials
從幾何學、粘彈性力學和燒結動力學的不同角度出發,探討了共燒翹曲形成機制和影響因素,建立了介電材料鐵氧體材料疊層共燒翹曲模型和翹曲曲率方程,揭示影響翹曲的因素為形狀尺寸因子,材料的燒結特性和異種材料之間的收縮率差,其中燒結過程的收縮率差是翹曲產生的根本因素,收縮率差越大,則翹曲曲率越大。For all long, however, they have been divided up in routine design that is taken at large by engineers, i. e., the rigidity relation and deformation correspond thereof are not considered so that the deformation and displacement from foundation are neglected, which will result in errors neglecting the restrained function to the warp of foundation due to the rigidity of the upper structure and the secondary stress of the upper structure because of different settlement from the foundation
而長期以來,工程界普遍採用的方法是將上部結構、基礎以及土體分割開來,不考慮各部分之間的剛度聯系和變形協調,忽略了基礎的變形和位移,從而忽略了上部結構剛度對基礎翹曲的限製作用,以及基礎的差異沉降對上部結構引起的次生應力,因而在安全性和經濟性方面都存在缺陷。It is found by comparison that as the structural forms of special - shaped columns and short - shear walls are used, the structures should be arranged reasonably so as to meet the needs of lateral stiffness, and axial compression ratio should be controlled strictly so as to meet the needs of constructional reinforcement to prevent the probably curling and shear failure for the purpose of meeting the needs of the construction of small high - buildings
對比討論發現:採用鋼筋混凝土異形柱和短肢剪力墻的結構形式時,應當進行合理的結構布置以滿足結構整體抗側移剛度的要求,同時嚴格控制豎向構件軸壓比並滿足配筋構造以防止構件可能出現的翹曲和剪切破壞,這樣才能同時滿足小高層住宅對建築和結構的需要。By model experimentation of 14 high - strength concrete frame columns subjected to axial eccentric compression, shear and humdrum torque, of 9 high - strength concrete and 3 high - performance concrete frame columns subjected to biaxial eccentric compression, shear and reversed torque, the behavior of high - strength concrete frame column in warped section are studied the first time, and the mechanism of torsion bearing capacity of high - strength concrete frame column are discussed
通過14根承受單向壓、彎、剪,單調扭矩復合作用的高強鋼筋混凝土構件和9根高強混凝土、 3根高性能混凝土框架柱在雙向壓彎剪反復扭矩復合作用的模型試驗研究,首次研究了高強混凝土框架柱在翹曲截面上的受力行為,探討了高強混凝土框架柱抗扭性能的受力機理。Based on the theory of thin - walled curved bar, reasonable hypothesized a third - ord parabolic curve, the paper adoptes variational method on energy, taking the coupled relationship of the effect of curvature radius, bend, torsion and shear - lag into consideration, establishes the elastic governing differential equation and boundary conditions for thin - walled curved box girders, which set the foundation of theoretical analysis of shear - lag effect in thin - walled curved box girders
摘要文章以薄壁曲桿理論為基礎,合理地假設了三個剪力滯翹曲位移函數,應用能量變分法推導出考慮曲率半徑影響、彎、扭、剪力滯耦合的曲線箱梁彈性控制微分方程及其邊界條件,為薄壁大麴率箱梁剪滯效應建立了理論分析基礎。The residual stress in the thin films may lead the crack, hillock formation, or delamination or completely failure of the thin films
薄膜中的殘余應力可能會造成薄膜的開裂、表面形成小丘凸起或翹曲,導致鐵電薄膜器件失效。Lower and remove the internal help dint of model the piece, keep product from trans form and bend
降低和消除成型件的內應力,防止產品的變形和曲翹。分享友人