曲率軸 的英文怎麼說
中文拼音 [qūlǜzhóu]
曲率軸
英文
axis of curvature-
In this paper, we give a brief introduction to the helfrich elastic theory. to solve the helfrich equation under the physical conditions of vesicles, a taylor series method is introduced, which offers a unified method to reproduce the exact solution including the famous axisymmetrical constant - curvature surfaces and the biconcave shape solution
本文在簡要介紹了helfrich的彈性理論及膜方程的基礎上,開創性地引入taylor級數法,在軸對稱膜的邊界條件下,對helfrich膜方程以taylor級數法求解,統一地得到了目前已知的兩個特解:常平均曲率曲面和紅血球形狀解。Rolling bearings. chamfer dimensions. maximum values
滾動軸承.曲率尺寸.最大值Chapter 3 erected the relationship between refraction error and cornel ablation depth in theory. the paper proposed various mathematical models which can be used for proceed the simple myopia, simple hypermetropia, compund myopia astigmatism, compund hypermetropia astigmatism, simple myopia astigmatism, simple hypermetropia astigmatism, mixed astigmatism. the influence of the astigmatic axis and the degree of astigmatism on the correction field is discussed. wavefront aberration guided excimer laser cornea ablation is a main method of customised corneal ablation
以數學的方法研究出了屈光性單純近視、屈光性單純遠視、復性近視散光、復性遠視散光、單純近視散光、單純遠視散光、混合性散光屈光矯正的物理模型;並揭示了不同軸位的轉換規律,對不同散光情況下的初始角膜兩個不同方向的曲率半徑和手術后最終的曲率半徑作了定量的研究。So far, the main frame of the conjugation of betrand are established, on the basis of which, it is given that the primary condition the directrix line must be satisfied, the relative curvature of the conjugating surfaces, the relations between non - interventional condition and curvature axle of the directrix line, and so on. the transmission of normal circular - arc gear is a typical bertrand conjugation. in order to promote the transformation from theory to technology, the general principle of this kind of transmission is studied
為了使研究更加貼近於工程,便於解析處理,提出準面的概念,並確立由準面到準線的研究路線,給出了各種傳動形式下準面與準線的具體特徵,證明了共軛準面上兩準線的誘導測地曲率等於零的這一不干涉條件,進而指出,當準面為平行軸和相交軸傳動的節曲面時,不干涉條件自然滿足。The globalization course was that the preformed texture recrystallized and became the granular equiaxed grain, when the temperature rose and the holding time prolonged, the granular grain melted at some area and at the liquid - solid interface the grain globalized at the role of the curvature overheated
過程機制為:擠壓形變組織在加熱過程中首先發生再結晶長大變為顆粒狀等軸晶;隨溫度升高和保溫時間延長,等軸晶發生局部熔化,液固界面的曲率過熱使晶粒外形向球狀轉變。It is determined that with accurate knowledge of the complete stress - strain curve of concrete in compression, steel in tension, and with an iterative computerized non ? linear method, it is possible to predict the entire moment - curvature, moment - flexural rigidity and axial rigidity relation ship of a cross - section of a structure member
可以確定,只要知道混凝土受壓和鋼筋受拉的完整的應力應變關系,採用選代的非線性計算方法,就有可能預測結構截面彎矩一曲率、彎矩一彎曲剛度和軸向剛度的關系。In the former, two computing modes of fem are built, aimed at the coupling of variable - profile pylon, curved - axis arch and flexible cable. the software algor feas is used to get the results of dynamic numerical analysis, such as natural vibration frequency, vibration mode, dynamic displacement, dynamic stress, which are compared with the results of shaking table test research to draw to important conclusions. these conclusions provide not only potent basis for the design and construction of nanjing century tower, but also reference for other pylon - cable - arch structures similar to the project
在動態數值分析中,針對世紀塔變截面的塔身,曲線軸線的拱以及柔性拉索相互耦合時清況,建立兩種有限元計算模式,利用有限元軟體algorfeas得到動力數值分析的結果,如:自振頻率、振型、動位移、動應力等等,再和振動臺試驗研究成果作比較,得到一些重要的結論,從而為南京世紀塔工程的設計和施工提供強有力的依據,而且為類以於世紀塔工程的其它塔-索-拱結構的設計也提供一定的參考。Based on the tribological principle and the theory of contact mechanics, it is feasible to adopt curvature - changing structure in the rock - bit journal bearing system. the structure and coupling relationship of curvature - changing journal bearing under the condition without friction have been analyzed and three kinds of sub - form structure configurations, namely, the pseudo - curvature - changing structure, the conformable curvature - changing structure, and the clearance curvature - changing structure, been differentiated according to the contacting features. the shape optimization and pre - running - in regulations of the contact surface of curvature - changing journal bearing under friction condition have been established. the results of rock bit journal bearing test indicate that the tribological behavior of the bearing can be effectively improved by curvature change based on both designing and pre - running - in
基於摩擦學原理和接觸力學理論,提出了可在牙輪鉆頭滑動軸承中採用變曲率結構.在不考慮摩擦的情況下,就結構設計和配合關系等問題進行了分析討論,劃分了準變曲率、吻合變曲率以及間隙變曲率等3種結構形式;針對考慮摩擦時的變曲率結構,提出了接觸形狀優化和預磨合的實施方案.鉆頭軸承試驗結果表明,無論是預設計變曲率還是預磨合變曲率,都能改善軸承摩擦副的摩擦學特性,因而值得進一步研究和推廣It supposed that the circle of sliding surface run through the foot of slide. the factor of safety is transmitted to the function of x coordinate of the intersection point of the tangent at the scrap of the circle and x axis. so, the two - dimension area of searching is changed to one - dimension
該方法先固定潛在滑動圓弧的上、下邊界點,利用滑弧后緣處的切線與x坐標軸交點的位置確定了滑弧的曲率,將二維搜索麵域簡化為一維搜索線域,搜索的上、下限有嚴格的界定,不存在漏點問題。And so on, to understand the influence for the m - relation curve of special - shped column rection with considerd the sliding of reinforcement anchoring. and compared the results to rectangle rection, analyzed the effect with the ductility of the special - shaped column by the factor referd ahead
通過改變荷載角、軸壓比、混凝土強度等級等參數,來深入了解考慮粘結滑移后對異形柱截面彎矩?曲率關系的影響,並分析了上述因素對異形柱截面延性性能的影響。The track in leading line is redesigned for its acute curvature change, which is the bottleneck during spiral machine. the new track has avoided blade ' s gnaw and tool swaying. and a new track with high quality is calculated
針對高速螺旋銑的加工效率瓶頸部分? ?緣頭處曲率劇烈變化的幾何特徵,重新設計了緣頭處的走刀軌跡,避免了緣頭處的啃切與刀軸晃動,計算出高質量的多坐標加工刀位軌跡。Then, this paper edits other computer program to calculate thirty sgrc frame columns, and researches the drift capacity of sgrc frame column, and analysis the turning capacity of frame column " s plastic hinge. then the relational expression of the curvature ductility factor and ratio of hoops of sgrc frame columns is derived. this paper analysis the relation of the curvature ductility factor and the relative drift of sgrc frame columns, and discuss the question of the minimum values of ratios of hoops of sgrc frame column at different axial load ratios
一11一太原理工大學碩_ i :學位論文使用本文程序另外模擬計算了30榻煤研石混凝土框架,進一步分析了軸壓比和配箍率對煤研石混凝土框架柱曲率延性的影響,編寫程序計算了30根煤研石混凝土框架柱,對煤研石混凝土框架柱的側向變形能力進行了研究,分析了柱塑性鉸的轉動能力,導出了煤研石混凝土框架柱的曲率延性系數與配箍率的關系式,分析了煤研石混凝土框架柱的曲率延性系數與框架柱相對側向位移的關系,討論了煤研石混凝土框架柱在不同軸壓比下最小配箍率的取值問題。( 4 ) influences of parameters on the behavior of the moment ( m ) versus curvature ( ) response, and the lateral load ( p ) versus lateral displacement ( ? ) relationship such as fire duration time, axial load level, slenderness ratio, steel ratio, steel yielded strength and concrete
( 4 )對影響彎矩-曲率( m - ) 、荷載-變形( p - )滯回曲線骨架線的各種因素,如受火時間、軸壓比、長細比、含鋼率、鋼材及混凝土強度等參數進行了分析。( 2 ) with f varying, there exists a number fr which is about - 1 ( curvature, torsion and dean number have little influence on fr ), when f > fr, the maximum of the axial velocity is near the outside bent and the friction factor ratio increases with f increasing ; when f < fr, the maximum is near the inner side bent and the ratio increases with f decreasing ; when f = fr, the distributions of the axial velocity are similar to those of poiseuille flow and the friction ratio is about 1
( 2 )當f變化時,存在確定的數值fr ( fr在- 1左右。曲率、撓率和dean數對fr的影響很小) ,當f fr時,軸向速度最大值偏向外側,摩擦系數比隨f增大而增大;當f fr時,軸向速度最大值偏向內側,摩擦系數比隨f減小而增大;當f = fr時,軸向速度的分佈和poiseuille流近似相同,摩擦系數比約為1 。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。The multi - stage axial compressor performance was measured using a streamline curvature method based on two - dimension ( axisymmetric ) mathematical model
摘要採用二維(軸對稱)數學模型,應用流線曲率法求解多級軸流壓氣機特性。The maximum designed compression ratio of two types of special - shaped columns is presented with two methods of curvature ductility and big - small eccentricity failure. and the advantages and disadvantages of the designed compression ratio determined by the two methods is compared to
用截面曲率延性和大小偏心臨界破壞點兩種方法確定它們的軸壓比限值,並比較了兩種方法確定軸壓比限值的優缺點。The curvature interference of the gear and the influence of radius of the mill - cutter, axial misalignment, and center distance on meshing are analyzed. based on these analyses, propose two methods to achieve point - contact : to change the radius of the mill - cutter and increase the center distance
在分析了弧齒線圓柱齒輪的嚙合傳動不產生曲率干涉的條件和刀盤展成半徑、軸線平行度誤差、中心距對嚙合影響的基礎上,提出了點接觸弧齒線圓柱齒輪實現的兩種方案:調整刀盤展成半徑和增大中心距。Chapter 2 : using a so - called variance matrix, we studied the propagation and the focusing characteristics of the paraxial light beams. the quantities characterizing the gross features for a paraxial optical beam, such as the beam width, the divergence, the curvature radius of the wavefront, the complex beam parameter q. and the beam quality factor, are related by using variance matrix
第二章:闡述了常數折射率介質中光束的傳輸和聚焦,建立了表徵傍軸光束總的特徵的量,如:束寬、衍射發散角、波前曲率半徑、復光束參數q與變換矩陣的關系,得到了光束質量因子和變換矩陣行列式的定量關系。Based on the progressed stress - strain relation of cfrp - confined concrete, a calculating moment - curvature relationship program is presented ; the moment - curvature relationship of cfrp - confined rectangular rc columns was nonlinearly analyzed. the effect of parameters including axial compression ratio, layers of cfrp on the ultimate strength, curvature ductility is discussed
在此基礎上,編制彎矩-曲率計算程序,對受約束柱截面的彎矩-曲率關系進行了非線性分析,分析了軸壓比、包裹碳纖維布層數對約束后截面承載力和曲率延性的影響。分享友人