角形構件 的英文怎麼說
中文拼音 [jiǎoxínggòujiàn]
角形構件
英文
angle piece-
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。Based on the past results, seismic behavior of r. c. frame structure with special - shaped column is studied, according to the members to the structure in sequence in this paper. the main contents are as follows aspects : first of all, aiming at the characteristics of special - shaped column, various control parameters including allowable value of drift angle, axial load ratio etc, are studied
本文在前人研究成果的基礎之上,就鋼筋混凝土異形柱框架結構的抗震性能,按照從構件到結構的順序展開研究,主要內容如下:第一,針對異形柱的特點,對影響結構抗震性能的主要參數,如層間位移角、軸壓比等進行研究。On the basis of experimental research, this thesis applies 2 - dimensional non - linear finite element method to the analysis of transient temperature field on the section by means of relatively high precision triangular element of six joints. when the temperature field is analyzed, finite element reseaus are divided in space field and finite difference reseaus are divided in time field, and then the program is compiled. the computing results are in good agreement with the test data
在試驗研究的基礎上,本文採用精度較高的三角形六結點單元對構件截面二維非線性瞬態溫度場進行了有限元分析,即在空間域內採用有限元網格劃分,在時間域內採用有限差分網格劃分,據此編制了計算程序,計算結果與試驗數據符合較好,程序穩定性好,精度滿足要求。Based on extensive investigation of construction technique history of chinese ancient buildings, the structure method, structure developing history and seismic behavior of chinese ancient timber structure buildings are analyzed in several respects of the structural system and form. through a series of experiments on constituent parts of chinese ancient timber building structure, including the tests on the corbels and brackets called dougong subjected to low cyclic reversed loadings, the tests on the wooden frame using the tenon - mortise joints as connections of column and beam subjected to low cyclic reversed loadings, the tests on vibration isolation effect of friction and slippage between column footing and their socle base, and a series of shaking table tests on a chinese ancient timber structure palace building mode under artificial earthquake at serving conditions, destroyed conditions and reinforced conditions, many valuable results of structures such as moment - curvature hysteretic loops of dougong structure and tenon - mortise joints under low cyckc reversed loadings, the static function, the seismic performance, energy dissipation, vibration reduction, energy - loss mechanism, nechanicalmode and failure mode were studied. aplenty of valuable parameters of the structure system were obtained, such as the natural period of structure, vibration modes, damping ratio, factor of vibration isolation, oscillate amplitude of ineitial accebration, velocity and displacement, magnitude of slippage, and the mechanism of structure failure and collapse etc. based on these research, the complete analysis of ancient timber structure under earthquake were carried out in which including mechanism analysis method, calculating mode, strength analysis of members and joints, strengthening methods for serving damaged ancient timber structure buildings were also taken into account
依照宋代《營造法式》建造了抬梁式殿堂木結構構件及結構模型,對中國古代木結構中的典型構造如:柱腳在礎石頂面平擱簡支、柱架榫卯連接、柱高不越間之廣、側腳、生起、斗拱等的構造機理及結構功能進行了量化分析和實驗研究: (一)通過木柱石礎靜摩擦試驗,測定了柱腳與石礎古鏡面間的摩擦系數及摩擦力隨上部結構荷載變化的規律; (二)通過單柱承載力試驗,測定了古建築中木柱的受力變形特徵、破壞模式、及模型材料的變形模量、極限承載力、極限變形等參量; (三)通過柱架低周反復荷載試驗,測定了柱架的抗側移剛度、柱架恢復力特性及滯回曲線、榫卯張角剛度及其變化規律、柱架及榫卯的極限承載力和極限變形、及榫卯減振參數; (四)通過斗?低周反復荷載試驗和受壓試驗,測定了古建築木構件與木構件間摩擦系數,斗?抗側移剛度,斗?恢復力特性及滯回曲線,斗?抗壓極限承載力及受力變形規律; (五)通過抬梁式殿堂間架模型振動臺試驗,測定了殿堂木構架結構自振周期,地震反應振形、阻尼特性及阻尼比;按結構分層特點對柱腳、柱頭和斗?層上的屋蓋的地震反應採用多點同步測量,對柱根滑移、榫卯變形、斗?的變形、復位、耗能減振參數等進行了定量分析。Along with the winglet / chimneys seen in saturday ' s european update, these triangular air vents form another definitive part of ferrari ' s latest aero package
同周六歐洲站的技術分析中已經介紹過的小翼/風道一樣,這些三角形的通氣孔也構成了法拉利賽車最新空力學套件的另外一個部分。3. a space bond slip relation of reinforcements in either end of a member is proposed, based on one - dimensional bond slip model of reinforcements proposed by teng zhiniirmg from tsinghua university, the first - time loaded ascending stage ? curve of which model is modified as the line which parameters are not changed so as to simply the computation. the bond, slip is regarded as the boundary nonlinearity of a member
3 、採用清華大學滕智明建議的一維鋼筋粘結滑移恢復力模型,但從簡化計算的角度出發,將首次加載的上升段曲線改為直線,並假定構件端部的諸多縱向鋼筋的滑移服從平截面假定,考慮由節點錨固區粘結滑移引起的構件端截面軸向和兩轉角附加變形。The research result indicated : for the strip primary mirror discussed in this article, the hexagon light - weighted cell has the best structural rigidity quality, the square cell is a little worse, the triangle cell is the worst ; there is an optimum on primary mirror thickness ; on condition of 1g gravity load combining with 4 centigrade uniform temperature rising, the thinner and higher of the flexible support reed, the better of the primary mirror surface figure. the decision of the structural parameters of the flexible support reed must take static rigidity, dynamic rigidity, static strength and dynamic strength of primary mirror assembly into account
研究結果表明:對于本文的長圓形主鏡,採用正六邊形輕量化孔,鏡體結構剛性品質最好,正方形次之,正三角形最差;主鏡鏡體厚度存在最佳值;主鏡組件在1g重力、均勻溫升4共同作用的工況下,主鏡柔性支撐簧片厚度越小、高度越高,主鏡綜合面形誤差( p - v值)越小,但同時主鏡組件的剛體位移增大、固有頻率下降,因此柔性支承結構參數的確定要綜合考慮主鏡的綜合面形誤差和主鏡組件靜態剛度、動態剛度、靜態強度和動態強度等因素。It divides the specific shapes of city space into streets, water systems, city skyline and corridors of sight lines. it also aims at the special landscape of hilly cities and analyzes their characteristics from macro and micro angles. at the same time, it explores some specific treatment principles and design methods, in hopes that it could provide useful references for the landscape constructions of china ' s hilly cities
本文主要是從城市景觀的角度,把在山地城市的景觀構成中占重要地位的線形景觀作為主要的研究對象,並根據城市空間的具體形態,將其分為街道、水系、城市天際線和視線走廊等幾個部分,針對山地城市特殊的地形條件,從宏觀、中觀、微觀等角度,分析它們各自的景觀特點,並結合大量實例探討了一些具體的處理原則和設計方法,以期對我國山地城市的景觀建設提供有益的參考。( 2 ) the structure condition of the earthquake happened : ms 6. 0 earthquake frequently happened several special structure place as follows : the intervein or the intersect of two deep and large rupture that their activity were very strong, the east of yulong - jiuzihai rupture and yulong snow mountain rupture
( 2 )區域強震發生的構造條件:區域ms 6 . 0級強震活動主要發生在如下幾類特殊的構造部位:兩組現今活動較強深大斷裂相互交錯或交匯部位;玉龍?九子海三角形斷塊東部尖端附近局部張應力異常區內的近sn向玉龍雪山東緣斷裂。In this paper, temperature distributions of buried cable were analyzed according to the knowledge of heat transfer, after constructing heat conduction equation and boundary condition, temperature distributions were calculated with the finite element method in which the grids divided into a triangle format
摘要結合傳熱學知識對地下直埋電纜溫度場進行分析,構造出熱傳導方程和邊界條件后利用有限元法計算了地下電纜的溫度場分佈,計算區域採用三角形單元剖分法。In this paper , the interpolations on a triangle under constraints are disscussed. by this method the 12 - parameter triangle plate elements with error o ( h2 ) are presented
本文討論三角形上在一定限制條件下的多項式插值問題,並將其應用於構造高精度雙參數12參三角形板元An original mesh generation method based on the nc track points of tool surfaces is proposed here, the method can automatically generate meshes consisting of only quadrilateral elements, which is desirable for better accuracy and efficiency of simulation. besides, an automatic local coarsening algorithm for structured quadrilateral meshes is also developed. for arbitrary discrete points on auto body surfaces, an automatic triangulation method is adopted and a series of mesh optimization methods with given constraint conditions are proposed
創新地提出了基於模具型腔表面nc數控軌跡點的全自動四邊形網格生成演算法,提出了結構化四邊形網格局部自動優化演算法,研究了基於車身曲面離散點的三角形網格自動生成演算法,並提出了給定約束條件的三角形優化演算法,探討性地研究了基於模具曲率半徑的板料初始網格局部自動細化演算法。The results of the limited element analysis and experiment study confirms that both the resisting ended batten and using angle batten in place of plate one could make the laterally stiffness of such member more strong. that maybe provides somewhat practical benefits for designing the twin - wall truss
本文還通過矩陣分析法和模擬試驗研究,證實了端綴板的存在對抵抗側向屈曲有明顯提高;而選用角鋼代替綴板材料相對于板形板,有助於提高構件的側移剛度和翹扭轉剛度,這對于單軸對稱綴板柱的設計也具有一定的實用價值。In this paper, the hal - c conception is studied according to the project requirements, and describes the functions of the hal - c in software waveform implementation. then the issues implementing the hal - c on the specialized hardware processor are addressed, and the methods of managing the components on fpga and dsp by proxy components with the domain descriptor file and the configuration table are brought out. in the end, the validity of the proposed methods is tested
論文以sca體系結構驗證實現項目為背景,深入研究了sca專用硬體補充規范,重點分析了硬體抽象層連接的意義以及它在波形組件開發中的作用,提出了它在dsp / fpga上實現的方法、步驟;接著從sca波形應用的角度描述了硬體抽象層連接在波形開發中的作用,給出了代理組件如何通過域描述文件和配置表管理專用硬體處理器上演算法組件的方法;最後對dsp / fpga上的硬體抽象層連接進行了驗證性測試。The optimization of fiber placement paths for composite around - parts is studied, and a triangle algorithm is presented which is easy to implement and can be used for the path generation of free form surface - parts. tow width control and shaping error control are also studied
4 .提出了用於封閉殼體構件的纖維鋪放軌跡規劃的三角形法,具有通用性強、計算簡便的特點;並討論了纖維鋪放的成形精度與絲寬控制方法。On the assumption of ignoring the distortion of thickness, this paper determines the rough shape by the geometric modeling method of equal area developing using mixed mesh cell of triangle and quadrangle for the first time, presents the equal area developing arithmetic of quadrangle - triangle. on the virtual geometric symmetry axis, we puts forward the method of determining the developed coordinate of the point on the base band in the development of using regular quadrangle cell, determines the developed shape of internal structure in plane utilizing point - to - point mapping theory. furthermore, we realize the approximate developing of undeveloped - irregular boundary surface using a few triangle cells
本文結合型號研製中小曲率機翼整體壁板類零件坯料展開課題,基於板料厚向變形忽略不計的先驗假設,首創混合四邊形-三角形網格等面積展開的幾何模擬法確定壁板類零件毛坯外形,給出了混合四邊形-三角形網格等面積展開演算法;提出了虛擬分割線的概念,採用虛擬幾何對稱軸,給出了規整四邊形單元展開基帶上結點的計算方法;採用映射原理和求交演算法確定了壁板內部結構信息的展開定位。In order to describe the damaging value of structure under earthquake, the damage parameters based on elastic transformative energy is proposed, which is used to study the damage on section, component and the whole structure
為了定量描述結構在地震過程中不同時刻的損傷值大小,本文從結構耗能的角度出發,提出了基於彈性變形能的損傷指標,該損傷指標對研究截面、構件和整體結構三個層次上的損傷均適用。In the scope of linear elastic theory, the consistent of the fundamental assumption between the theory of thin - walled beams and solid beams is analyzed and defined from the viewpoint of the thin plate theory. the drawback of volassov thin - walled beams theory is studied on the ground of the traverse distribution of loads on the thin plate. and, the fundamental assumption of generalized beam theory ( gbt ) is surveyed
本文在線彈性的范圍內從薄板彎曲理論出發,討論了薄壁桿件理論與實體梁理論在基本假定上的一致性,並從薄板荷載橫向分佈形式的角度分析了符拉索夫薄壁構件理論的局限性,對考慮截面畸變的梁理論? ?廣義梁理論( gbt )的基本假定進行了探討。Similarly to other methods for smart rotor, the most important and difficult problem is the design of the actuator. first, the piezoelectric smart material has been studied and an actuator with piezoelectric stack has been proposed in the mode of parallel connection in electrics and series - wound in mechanics according to the property of the piezoelectric porcelain. second, a 2 - x actuator has been designed with the piezoelectric stack active part according to the triangle theory
本文首先對壓電智能材料進行研究,根據壓電陶瓷的特點,採用電學並聯、力學串聯的設計模式,提出一種壓電堆主動驅動部件,在此基礎上,根據三角形放大原理,設計了推挽式雙x放大機構,並將壓電堆主動件應用於推挽式雙x機構,形成了推挽式雙x驅動器。Under the horizontal earthquake action and wind force, aim at " the pure frame structure with rectangle columns ", " the pure frame structure with special - shaped columns ", " the frame - truss structure with special - shaped columns " and " frame - shear wall structure with special - shaped columns ", earthquake action analysis was done by the spacial finite element method through the changes structural parameter. analyzing systematically " structure vibration mode ", " vibration period ", " structure lateral rigidity ", " seismic action force ", " seismic response force ", " floor seismic shear force ", " lateral horizontal displacement of structure " and " members internal force ". results indicate : ( 1 ) based on equal area, the special - shaped columns replaced the rectangle columns, the structural lateral rigidity enlarges, the lateral displacement minishes obviously, the earthquake response increase slightly, the biggest increasing amount of frame columns axis - compress ratio is smaller than 0. 08. the whole aseismic performance of structure has improved ; ( 2 ) when the section ' s length and section ' s thickness ratio of special - shaped columns is smaller than 3. 6, the structure benefits to resist seismic action ; ( 3 ) the angle of horizontal seismic action with the whole coordinate is 0 degree, structure earthquake response is bigger, belonging to a control factor of structure aseismic design ; ( 4 ) the frame - truss structure with special - shaped columns and the " a " - brace has the biggest lateral rigidity ; ( 5 ) the frame - shear wall structure with special - shaped columns have bigger lateral rigidity and smaller displacement, members internal force enlarged just rightly, have much superiority of resisting seismic action ; ( 6 ) in the higher seismic fortification criterion region ( 8 degree of seismic fortification intensity ), aseismic disadvantageous building site ( iii type site ), adopting special - shaped columns structure system, should reduce possibly the building ' s self - weight in order to reduce the earthquake response ; ( 7 ) the response spectrum method of computing seismic response and the time - history analysis method have similar analysis result
西安理工大學碩士學位論文在水平地震作用下,並考慮風荷載組合,分別對「矩形柱純框架結構」 、 「異型柱純框架結構」 、 「異型柱框一析架結構」及「異型柱框-剪結構」等四種結構體系,通過改變結構參數,運用空間有限元方法,進行地震作用計算。系統地分析研究「結構振型」 、 「振動周期」 、 「結構側向剛度」 、 「結構地震反應力」 、 「樓層地震剪力」 、 「結構側向位移」 、 「層間位移角」 ,以及「構件內力」 。結果表明:在等面積原則下,異型柱代換矩形柱后,結構剛度增大,側向位移明顯減小,地震反應力略有增加,框架柱軸壓比最大增幅小於8 % ,結構整體抗震性能有所提高;當異型柱肢長肢厚比小於等於3 . 6時,結構有利於抗震;水平地震作用力與整體坐標夾角為0度時,結構地震作用效應較大,屬結構設計的控制因素之一;異型柱框一析架結構採用「人」字斜撐,側向剛度大於「八」字斜撐和「人一八」字混合斜撐;異型柱框一剪結構側向剛度大、位移小,構件內力增大適中,是一種抗震性能優越的結構體系:在抗震設防烈度較高地區( 8度)和抗震不利的建築場地( m類場地) ,採用異型柱結構體系時,應盡可能減輕結構自重,降低地震作用力;分別採用「振型分解反應譜」法和「時程分析」法進行地震作用計算,兩種方法所得結果基本一致。分享友人