直梁單元 的英文怎麼說
中文拼音 [zhíliángdānyuán]
直梁單元
英文
straight beam element-
From the feature of the force and deformation of the tpih, 5 different elements are used to mesh the different zones of the tube, which are structural beam 3d elastic 4, structural pipe plastic straight 20, structural pipe elastic elbow 18, structural shell elastic 4 node 63 and contact 3d pt - to - surf 49 ; the contact problem is assumed to be flexible - to - flexible ; the temperature field is assumed to be body load. a mechanical model corresponding to reality has been established for numerical simulation. based on the above, the 3 - d fem numerical simulation of tpih has been carried out by using the ansys program
針對加熱彎管過程的受力和變形特點，採用三維梁單元、三維塑性直管單元、三維彈性曲管單元、三維殼單元與三維點對面接觸單元等5種不同的單元分別對管毛坯不同區域進行劃分，並對接觸單元採用柔體-柔體的處理方法，將溫度場作為體載荷處理，建立了符合實際的加熱彎管問題數值模擬力學模型：在此基礎上，應用商用軟體ansys對加熱彎管過程進行三維有限元模擬與研究，獲得了成形時推力、彎矩、支撐力大小及其變化趨勢。The author advances that the shear connector is simulated by two spring elements, which are vertical to each other and parallel to the interface between steel and concrete, and one multipoint constraint element, mpc element, which is vertical to the interface. the author also puts forward that the crack of the deck is simulated by the gap element which ca n ' t support longitudinal tensile force but can support longitudinal compressive force
提出了以正交的兩個平行於鋼和混凝土界面的彈簧單元及一個垂直於界面的多點約束（ mpc ）單元來模擬剪力鍵，以小間隙接觸（ gap ）單元來模擬混凝土橋面板的開裂，模型中忽略了混凝土板與鋼梁接觸面間由摩阻而產生的粘著力。Lognitudinal and transversal members of grillage, regarded as cuved - beam element and straight - beam element, are analyzed by finite element method, and the module for grillage static analysis is formed, by using table of information of nodal point restraint to assemble stiffness matrix for structure in restraint
將梁格縱橫構件分別按曲梁和直梁兩種單元進行有限元分析，引入結點約束信息表進行約束結構剛度矩陣的組集，形成了曲桿梁格靜力分析模塊。Based on the structural feature of long blade with friction damper, pretwist beam element and space straight beam element were adopted to discrete the blade, and the numerical model of damper link element was established, then the gross finite element motion equation of the blade was obtained
針對帶摩擦阻尼器長葉片的結構特點，採用扭曲梁與空間直梁單元模化葉片，推導葉片阻尼連接單元的力學模型，由此建立葉片總的動力特性分析方程。2. based on the muller - breslau principle, formulars of equivalent nodal loads for the curved - and straight - beam element while occuring unit relative constrained displacement have been deduced. the influence surface of the internal force for grillage has been analyzed by combining kinematic method with finite element static method, using the superposition principle applied to little deformation
根據米勒-布雷斯勞原理，推導了曲梁、直梁截面發生單位強迫相對位移時的等效結點荷載計算公式，運用小變形的疊加原理，將梁格機動分析與梁格有限元靜力分析相結合建立了內力影響面。A material nonlinear finite element analysis for the cast - in - place reinforced concrete hollow slab that occurs from initial loading, cracking, yielding to failing is carried on. the cracking load, ultimate load, the displacement rules and the principal stress distribution rules of the hollow slab under the vertical loads are obtained. a material nonlinear finite element analysis for the single span hollow flat - plate floor is also carried on
其次對空心板進行了從加荷、開裂、屈服直至破壞的全過程材料非線性有限元計算，得到了空心板在豎向荷載作用下的開裂荷載、極限荷載及位移和應力分佈規律；還對單跨無梁樓蓋進行了材料非線性有限元計算，通過分析主應力場明確了柱上暗扁梁的作用；有限元計算的結果驗證了以上的理論分析並得到了一些重要的結論，對改進現澆空心板無梁樓蓋的構造措施有重要的參考價值。In the analysis, a cfst arch ( single tube ) is first divided into a finite number of straight beam elements. according to the virtual work principle and the modified newton - raphson iteration method the tangent stiffness matrix considering double nonlinear properties is established. with regard to the non - equilibrium forces, the material nonlinear property along the height of the section and the length of the element is considered and the computation accuracy is improved as a result
本文首先將拱肋劃分為一系列的直梁單元，運用虛功原理和修正newton - raphan數值迭代演算法的基本原理準確推導了拱肋直梁單元的非線性切線剛度矩陣；在不平衡力方面考慮了沿截面高度和單元長度方向材料非線性的發展過程，提高了計算精度；再根據得到的切線剛度矩陣採用荷載增量步內修正newton - raphan迭代的增量迭代法進行了求解。Subsequently, two kinds of basal movable element models actuated by sma are studied, they are bidirectional bending beam element which can yield bending deflection, and linear actuating element with linear displacement output
研究了兩類基本的sma驅動單元模型：具有彎曲變形輸出的雙向彎曲梁單元和具有直線性位移輸出的軸向伸縮單元。Firstly, it needs to separate the girder hull into many elements - pulled one and pushed one. secondly, when the ship is in hogging or sagging, you should assume one curvature value so you can get the moment value of every element at this curvature. and then you may add up all the moment of every element
當船體梁在中垂或中拱狀態下時，假定一個初始曲率，根據各個單元對瞬時彈性中和軸彎矩的貢獻，累加得到相對于這個曲率的總彎矩，然後判斷彎矩是否達到極值，如未達到，則增加曲率，重復上述過程，直到彎矩為極值為止。分享友人