角變載荷 的英文怎麼說
中文拼音 [jiǎobiànzǎihé]
角變載荷
英文
angle load-
Fist of all, on the basis of the research of agone boffins, this author investigates the interaction mechanism of bolts and rock, and introduces the elastic ? lastic analytical resolution which is consist of the liner structure, the equivalent reinforced wall rock and the original wall rock in the simple loading from the equivalent well - proportioned view ; this solution is very important meaning for the engineering design. on the basis of coulomb friction model, the author introduces the finite element equation of the contact problem in order to provide the academic foundation for the application of msc. marc. finally, combining the engineering practice of the non - linear analysis of shield tunnel through yellow river of the south - north water transfer and using the model of friction, the author researched the evolution law of stress and displacement field in the structure of grouted rock bolts, and analyzed the effect to the stress and deformation of surrounding rock mass due to anchor supports
首先,在前人研究成果的基礎上,對錨桿與圍巖的相互作用機理進行研究,利用全長錨固錨桿的中性點理論,從等效均化的角度來考慮錨桿對圍巖的加固作用,並推導了在簡單荷載作用下,含有襯砌、等效加固后的圍巖、原始圍巖三者的彈塑性解析解,對工程設計有著重要的參考意義;在數值模擬方面,以考慮錨固圍巖滿足規則化庫侖摩擦模型為基礎,利用虛功原理推導了接觸問題的有限元方程的計算格式,為開發運用大型商用有限元軟體msc . marc提供了理論根據,也形成了本文的理論基礎:最後,論文以南水北調東線穿黃隧洞穩定性分析項目為工程實例,利用本文所述的接觸問題的摩擦模型理論,對錨桿支護結構的應力場、位移場的變化規律進行了研究,分析了加錨支護對隧洞圍巖應力、變形的影響。Under kinds of conditions, these stresses, strains and their development of concrete, steel, and angle iron were shown. during the whole process, the rate of sharing the loading for the angle iron was also indicated
給出了各種情況下混凝土、鋼筋和角鋼的應力應變值及其發展變化情況;給出了各種情況下,角鋼在加固過程中承擔荷載的比率。Find the angular deformation sustained with such loading.
求在這種載荷下出現的角變形。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。In this test, a special bolt - jack is used to exent of prestressing force to brace angles as the whole structure is under dead - load. in this state brace angles withstand partly load before twice - load and the stress and strain of concrete are decreased. in this way the aim of removal of load and strengthening can be reached
本試驗中採用專用螺栓千斤頂在恆定荷載水平下對混凝土柱角鋼撐桿施加預壓應力,使外包角鋼在二次受力前即分擔部分荷載,使混凝土應力水平和應變水平降低,達到卸載與加固同步進行的目的。The sea1 ring with complex section shape cafl be treated as a combined body made of several individual cy1 inders with di fferent dimensions. by app1ying the method used in the " edge prob1 em " of the fnoment theory of she11, the deformat ion - - - radia1 disp1acement and rotation at the two edges of each individual
應用殼體力矩理論中求解邊緣問題的方法,將密封環分解為多個等厚度、截面為單一矩形的筒體,對每一圓筒進行分析並運用殼體力矩理論求出其兩個邊緣在外載荷作用下的邊緣變形值? ?徑向位移及轉角。The result shows that under the effect of repeated impact load, the stress wave produces reflection in the metallurgical junction plane between coating and basal body, and forms stretch wave causing longitudinal split and angle split of coat ; the microcosmic spot pitting and deep layered peeling off occur in coating surface due to stress concentration ; the energy accumulation of impact loading causes rigidity variation and plastic deformation
結果表明:在多沖載荷作用下,應力波在塗層和基體的冶金接合面發生反射,形成拉伸波造成塗層的縱裂和角裂;在塗層表面由於應力集中,塗層表面發生微觀點蝕和深層剝落;沖擊載荷能量的積累,造成塗層試樣硬度變化和塑性變形。He finds the pitch range after calculated the three important parameters through the bladed for windows software, then presents an optimized control strategy that regulate the pitch angle in terms of the wind speed. it must control the output power because the variational output power brings the variational loads. he confirms and optimizes the control strategy that the output power is the control target, the output power is divided into three parts
將功率作為系統控制的目標,將功率分成三段進行控制,在低風速區,載荷是有限的,以功率最大化作為控制目標;在額定風速附近,由於處在升力曲線斜率的變化點,功率變化較大,應盡快調整槳距角進入失速區工作,減少載荷的波動,該額定風速區的上下工作點要通過現場試驗的手段來確定;在額定風速以上,使功率維持在額定輸出,減少功率波動,並通過bladed軟體的模擬計算對控制策略進行了驗證。Through the simulation of the forming process, we can get the deformations, stress, strain, plastic flowing in sheets and the interface state under impact load and rolling load, the deformation of the sawtooth form and comparing to the initial state, the results above are expressed in computer animated way. and the effect of geometrical ( mainly different form, including 90 degree, isoceles triangle , 75 degree, and 1. 5 high and wide ), material and technical parameters on the bond strength are analyzed, also including the comparison of different sawtooth form. the optimum parameters are got
對雙金屬復合板成型過程進行模擬,從而得到在沖擊載荷和軋輥壓力作用下基板和覆板的應力、應變分佈和塑性流動變形規律,復合后的齒形的變形情況與初始齒形形成對比,以動畫的方式模擬成型過程,並分析了不同幾何參數(主要是不同的齒型,其中包括直角齒型、等腰齒型、 75度齒型、 1 . 5高寬齒型) 、材料參數、工藝參數對復合強度的影響,以及不同齒型的變形對比以及齒型對復合情況的影響,提出最優齒型、最優工藝參數,有效地指導了實驗。The main contents of this paper are following. ( 1 ) the mechanical models of ball bearings are set up by both the quasi - dynamic method and the finite element method in this paper, and then the load distribution of ball bearings is studied. the rules of the contact angle, the deformation, the stiffness and the limit rotational speed in different structure parameters and load parameters are analyzed
本文圍繞航空發動機高速滾動軸承的力學特性,開展了以下工作: ( 1 )分別採用擬動力學法和有限元法,建立了滾動軸承力學分析模型,研究了滾動軸承的載荷分佈特性,分析了不同結構參數和載荷參數對其接觸角、變形、接觸剛度和極限轉速的影響規律。In accordance with the occurrence behavior of roof strata and the fracture characteristics of key stratum in shallow seam longwall mining, studied post - buckling behavior of roof key stratum in the process of mining by using initial post - buckling theory, which derived a critical load and a breaking span of the main roof during the first weighting, determined the final subsidence and the maximum rotation angle for broken key stratum, and presented an application with the example of daliuta 1203 face
摘要根據淺埋煤層頂板巖層的賦存特點和長壁開采時關鍵層的變形破斷特徵,應用初始后屈曲理論探討了開采過程中頂板關鍵層的后屈曲性態,得出了老頂初次來壓時頂板的臨界載荷和破斷步距,確定了頂板破斷后的極限下沉量和回轉角,並以神東礦區大柳塔1203工作面為例給出了工程實例。The damage parameter versus fatigue life figures, which were plotted based on the stress - strain analysis and test results, could be used to predict the fatigue lives of the composite with different winding angles
根據雙軸載荷條件下管狀試樣的應力-應變分析及雙軸疲勞實驗結果,繪制出了基於臨界平面的多軸損傷參量與疲勞壽命關系圖,可對不同纏繞角的復合材料疲勞壽命進行預測。According to elasto - plasticity theory, with the help of finite - method program ansys, the paper undertakes the computer analogue tests about the bearing capacity of pile tip arranged by orthogonal principle, and attains the relations of pile - tip bearing capacity to embedment depth, pile diameter, cohesion, internal friction angle and modulus of deformation. by the means of mathematical statistic, regression equation of the ultimate bearing capacity calculated by finite element method is gained through the regression analysis of 81 group data from the computer analogue tests. by comparison and analysis of the values calculated by finite - element regression equation and the values of in situ loading test, the regression equation is gained which calculates the size effect for base resistance of large diameter pile
根據彈塑性理論,運用大型有限元軟體ansys按正交設計理論對樁端承載力進行模擬計算,獲得樁端承載力與樁長(埋置深度) 、樁徑、粘聚力、內摩擦角及變形模量等主要影響因素的關系,並採用數理統計方法,對81組ansys模擬試驗結果數據進行回歸分析,得到有限元法確定樁端極限承載力的回歸公式,並將有限元法回歸公式計算值與現場小壓板載荷試驗值進行比較分析,得到大直徑樁端阻的尺寸效應系數計算公式。Taking into account of the structure distortion, the theory and method of load calculation is researched from the perspective of engineering and airworthiness in this paper. the presented theory and method of load calculation is suitable for all kinds of civil aircraft. the load conditions and the initial parameters appropriated to the load calculation are determined according to the requirement of airworthiness
本文從工程應用和適航性角度出發,對民用飛機結構載荷計算的理論與方法做了詳細的研究,研究了考慮結構變形的載荷計算方法,按照適航要求確定了飛機各部件載荷計算的設計情況和原始參數。Doorsets - diagonal deformation test under static load
門組合件.靜載荷下的對角變形試驗After considering the coupling of the mounting errors and elastic deformation, the meshing influences of the error of the center distance, the setting parametric error in the axial direction, and the intersect angle between the two axes on transmission performance are investigated. 4
考慮到安裝誤差和載荷作用下的彈性變形等非共軛因素耦合作用,分析了漸開線蝸桿傳動在安裝時存在中心距誤差,軸間相對位置誤差,軸間相對夾角誤差對其承載嚙合的影響; 4Analysis results indicate : shroud tightness is determined by pre - twist angle of shroud and working load, the centrifugal force plays a main role to the tightness change
分析結果表明,葉冠的緊度由預扭角和工作載荷決定,離心力對緊度的變化起主要作用。The study on varied - amplitude fatigue behavior of large - span grid structure with hanging cranes is a blank field in the world. on the base of extensive investigation, from the viewpoint of loading, this paper widely discusses the development of fatigue loading spectrum in the fields of aviation, mechanism and civil engineering, listing the main technology standards of hanging crane and the engineering examples of partial grid structure with hanging crane in china, concluding the mechanic methods on tension - resistance fatigue design of bolt in china. america
設置懸掛吊車網架的變幅疲勞性能研究屬于當前的一個前沿課題,本文從載荷的角度,通過廣泛的調查和深入的研究,全面地論述了疲勞載荷譜在機械、航空、土木領域的進展情況,列出了國內部分已建或在建的設置懸掛吊車網架結構的工程實例和懸掛吊車主要的技術規格,詳細歸納了中國、美國、德國、日本、前蘇聯的螺栓抗拉疲勞設計理論以及美國、德國鋼結構協會關于高強螺栓抗拉疲勞設計的若干規定。Then, the edge 1oads can be so1ved according to the coordination condi tions of deformation, and the radia1 disp1acements and rotat ions of each individua1 cy1 inder under corresponding edge 1oads can be obtained
於是,依據邊緣變形協調條件,可求出各筒體邊緣載荷。然後,可求得各圓筒在相應邊緣載荷作用下的徑向位移和轉角。There is angular between the longer axes of the ellipse and the axes of the shaft, moreover, the angular is variable with the magnitude and the direction of the load
本文證明該橢圓長軸和傳動軸應該呈一定的夾角,而且夾角值隨工作載荷的大小和方向的變化而變化。分享友人