curvature analysis 中文意思是什麼
curvature analysis
解釋
曲率分析-
The paper studies the surface geometry of globoidal indexing cam by applying the theory of conjugate surfaces and the method of coordinate transformation, presents the equations related to the main inducement curvature of the cam profiles, analysis and deduces the equations of two circumscription curves, which judge if the conjugate surface could mesh properly. some calculate examples and conclusion are given. the surface equation of the globoidal cam and conjugate equation are established
論文首先在分析空間嚙合原理基礎上，採用坐標變換法推導出弧面分度凸輪的工作廓面方程、嚙合方程和壓力角計算公式，對弧面分度凸輪的嚙合特性進行了深入的分析和研究，對判斷曲面能否正確嚙合的依據如兩類界限線方程以及誘導主曲率等進行推導，並給出算例。 -
The paper also does some deep research on the mesh characteristic of the mechanism, analyses the cause o f the cam profile error and index error during working, using object - oriented method, vc + + and pro / toolkit, performs second development to pro / engineer, completes entity proplasm of the cam mechanism using only few parameters, the press angle calculate module, error analysis module and curvature calculate module are built on the basis of it
然後通過對弧面分度凸輪加工中產生廓面誤差及工作時產生分度誤差原因的分析，建立了計算加工和分度誤差的數學模型。應用vc + +和pro toolkit對pro engineer進行二次開發，建立了弧面分度凸輪機構的參數化設計和三維造型及壓力角、誘導主曲率等運動特性和誤差分析軟體系統。 -
Pattern analysis and machine intelligence, 1992, 14 : 430 - 449. 15 mokhtarian f, mackworth a k. a theory of multi - scale, curvature - based shape representation for planar curves
第三，定義了一種多尺度的特徵相似性度量，從而把圖像灰度分佈和幾何結構結合在一個完整的框架中。 -
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。 -
Curvature analysis is one method that predicts high permeability region of coal reservoir by use of coal bed structure curvature, combined with the fracture and cleat developed degree of outcrops
曲率分析是應用煤層構造麯率的大小，結合實際露頭的裂隙、割理發育情況進行煤儲層高滲區預測。 -
First, using strip - partitoning method and programming in matlab language, the numerical caculations of the relation curve between moment and curvature are done for the beams strengthened with non - prestressed and pretressed cfrp sheets, base on the assumption of plane section, non - bonding slip and non - peeled destroy. secondly, nolinear finite elemeant analysis by ansys are done for the beams strengthened with prestressed cfrp sheets base on the three assumptions before mentioned, the analysis are all done for the relation curve between load and displacement, the distribution of material stress, the distribution of cracks. lastly, calculation formula of flexural capacity and deflection are proposed
）的全過程關系曲線。其次基於上面的三個假定，選擇合理的本構關系，利用ansys通用有限元分析程序對預應力碳纖維布加固梁進行非線性有限元分析，分析了加固梁的荷載-撓度關系、材料的應力情況、裂縫的分佈情況等。最後提出了承載力計算公式和正常使用狀態下撓度計算公式。 -
In accordance with the main contradictions between high deterioration degree of coal and low permeability of coal bed, this paper predicts high permeability region by use of new technique and methods including stress field, curvature analysis and major stress difference analysis
針對沁水盆地煤變質程度高、煤層滲透率普遍較低的主要矛盾，利用新技術、新方法，利用應力場、曲率分析方法和主應力差分析方法預測高滲區。 -
The thesis tells surface analysis method including curvature analysis and curve depth analysis that we using in the skin restoring project. in chapter 2, it tells the definition of b - spline curve and surface and the fundamental algorithm - de boor algorithm for points of curve and surface. as to reconstruct surface from ct data, we discuss some basic algorithm and introduce the wrapping skin algorithm
在第二章中，介紹了b樣條曲線曲面的定義及基本演算法- -求曲線曲面點的德布爾演算法；基於ct數據的曲面重構，討論了重構過程中所應用到的基本演算法（如節點插入及消去演算法、曲線的反算方法等） ，並介紹了曲面重構中常用的蒙皮法。 -
With curvature - force method, this thesis designs the program for nonlinear analysis and simulates the test
然後本文利用曲率力法編制的非線性分析程序，模擬了預應力框架試驗。 -
On the other hand, the conformal deformation ' s problem is to find a metric on h2 ( - 1 ), conformal to g, with the given function k as its gaussian curvature, that is, it is important for us to study the solvability of the conformal gauss curvature equation in geometry analysis. the problem that the conformal gauss curvature equation may have a solution for every nonegative holder continuous function k ( x ) is also an open problem
） = e ~ （ 2u ） g使k是（ ? ）的高斯曲率，即共形高斯曲率方程的可解性研究是幾何分析中的一個重要問題。當預定的函數k取正值時，共形高斯曲率方程解的存在性命題作為一個猜測至今未得到解決。 -
It studies and puts forward the flexibility difference curvature method, and many simulated damage examples show that the method has notable advantages such as high damage identification sensitivity, strong reliability, and visualization and simplicity in amount and graph analysis
本文研究並提出了柔度差值曲率法，多個模擬損傷實例說明該方法具有損傷識別靈敏度高、可靠性強、數值和圖形分析直觀簡便的顯著優點。 -
Through comprehensive analysis of the tbph, the relationship between the induction heater site and rotary axis and the relationship between the support wheel and initial site of the front clapper have been concluded. the minimum nominal curvature radius has also been determined
通過對加熱彎管成形的綜合分析，得出感應加熱器與回轉中心的位置關系及支撐輪與前夾頭初始位置關系，並確定了加熱彎管最小名義彎曲半徑。 -
Secondly, the finite element analysis of composite materials interlaminar stresses is researched in this paper. the interlaminar stresses slightly influenced by the composite materials ' lamella curvature, but not influenced by the distributing form of interlaminar stresses follow thickness are found
本文在研究復合材料層間應力的有限元分析時，發現復合材料層合殼曲率對層間應力大小有一定影響，但對層間應力沿厚度的分佈形式影響不大。 -
Analysis of the edge curvature radius of the beveled cutting tool
斜角切削刀具刃口曲率半徑分析 -
Finally, niutoushan double - curvature arch dam was modeled and 3 - d fem simulation analysis was performed, so as to find out the integral safety factor and the stress and displacement patterns of dam and its foundation under different load combination
最後，對牛頭山水電站雙曲拱壩進行了有限元建模和三維非線性有限元模擬分析，計算分析了各種情況下壩體和基巖的應力位移規律，對大壩的整體安全度進行了綜合評判。 -
The maximal load - carrying capability of the arch support is calculated by adopting mechanical model of curved beam based on its force analysis, and relationship between bearing capacity coefficient of small curvature arch support and radius and span of curved beam is gained based on supporting capacity comparison of curved beam and straight beam
採用曲梁模型進行了支架系統的受力分析，得到其最大承載能力；通過與直梁支架承載能力相比較，得到了小曲率拱型支架承載能力系數與曲梁跨度和半徑的影響關系。 -
Equations of mesh, shorting contact line, undercutting limit line, meshing limit lines and the existence conditions, angle between the direction of relative speed and the direction of contact line, induced normal curvature about every point on the contact line are established. moreover, the paper also theoretically analyzed the error of the grinded gear surface. on the basis of the theory, the computer program is worked out to automatically produce the contact line and the boundary curves of mesh. analysis of meshing circs under different parameters can be done so that we can gain the best process condition
首先對漸開面二次包絡理論進行了深入的探討，推導出了兩次嚙合的嚙合方程式、瞬時接觸線方程式、根切界限線方程式、嚙合界限線的方程式及其存在條件，相對運動速度方向與接觸線方向的夾角及接觸線上各點的誘導法曲率；此外，還對磨齒后工件的齒面誤差進行了理論分析；並在理論基礎上編制了相應的計算機程序，自動生成接觸線族及嚙合界限線，對不同參數條件下的嚙合情況進行分析，可以使工藝條件達到最佳狀態；最後研究了磨齒裝置，設計了磨齒機的傳動系統。 -
In auto smooth method, we use the curvature and depth analysis to look for " bad point " automatically, and take the latitudinal curve to modify the surface ; referring to the tech of image processing, we import a interactive method to smooth surface based on image smoothing
在自動光順方法中，利用曲率分析及深度分析自動尋找「壞點」並採用緯向曲線重生成的方法予以修正；結合圖像處理的內容，引入了基於圖像平滑的互動式曲面光順方法，取得了滿意的效果。 -
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。 -
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。
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