線性形狀函數 的英文怎麼說
中文拼音 [xiànxìngxíngzhuànghánshǔ]
線性形狀函數
英文
linear shape function- 線 : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
- 性 : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
- 狀 : Ⅰ名詞1 (形狀) form; shape 2 (情況) state; condition; situation; circumstances 3 (陳述事件或...
- 函 : 名詞1. [書面語] (匣; 封套) case; envelope 2. (信件) letter 3. (姓氏) a surname
- 數 : 數副詞(屢次) frequently; repeatedly
- 線性 : [數學] [物理學] linear; linearity線性代數 linear algebra; 線性方程 linear equation; 線性規劃 line...
- 函數 : [數學] function函數計算機 function computer; 函數計算器 function calculator; 函數運算 functional operation
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In part two, the optical spatiotemporal pattern in ring optic cavity is investigated. using delay feedback with spatial perturbation method, the system shows roll, square, hexagon, homocentric circle, " honeycomb " and " snowflower " pattern with different spatial perturbation functions. different patterns can be coexist and compete each other with the same perturbation function, which is the new character of this optical system with delay feedback
第二部分,利用延時反饋的空間微擾方法研究了環形腔中二能級介質的光學時空斑圖的控制,在不同的微擾函數作用下,出現了滾筒狀、四方形、六角形、蜂窩狀、同心圓以及「雪花」狀等不同的斑圖,並且在相同的微擾函數下張勝海:博士學位論文出現了不同斑圖之間的競爭,這種競爭是我們發現的這一具有空間微擾的延時反饋非線性光學系統光學斑圖的新特徵。As further extension of the uniform b - spline basis functions, the author extends the uniform b - spline basis functions of degree 3 and degree 4, and generates the blending functions of degree 5 ( 3 - b ) n degree 5 ( 4 - b ) and degree 6 ( 4 - b )
作為均勻b樣條曲線的進一步擴展,作者對三次和四次b樣條基函數進行擴展,構造了三b五次、四b五次、四b六次調配函數,從而產生了連續性分別達到c ~ 3和c ~ 4連續的多項式曲線,它們的形狀都可以用參數進行調整。In the paper, static and dynamic triaxial tests were conducted on fiy ash at shanmenxia longgou ash dam, and the static and dynamic parameters of fly ash were obtained. thirdly the 2 dimensions static analysis of the ash dam was conducted based on biot ' s consolidation theory and duncan ' s nonlinear stress - strain model. finally the plane dynamic behaviors of the ash dam during earthquake of intensity 7 were analyzed based on the exponent function model of excess pore water pressure aroused by earthquake, which is put forward in the paper, and equivalent visco - elastic dynamic fem model and principle of effective stress
本文結合實際工程,對三門峽火電廠龍溝灰壩的築壩粉煤灰進行了靜、動三軸試驗,確定了該壩粉煤灰的靜動力學指標;然後根據比奧( biot )固結有效應力原理,採用鄧肯( duncan )非線性應力應變模型,對該灰壩的二維靜力應力和變形狀態進行了分析;最後利用本文提出的地震超靜孔壓指數函數模型,採用等價粘彈性動力有限元方法,對該灰壩在地震作用下的動力穩定性進行了分析評述。The term of “ congestion " was firstly used in transport industry, it was considered to be a phenomenon that excessive transport vehicle were input on transport, which causes the blockage and a declining transport capacity ( d. mcfadden, 1978 ). he considered the state of production factor congestion as a border state, which generally represented all phenomenon of a weak disposal capacity formed by improper collocation of production factor. under the assumption of absolutely rational and complete information in classical economics and the principle of manufacturer ’ s maximal profits, the collocation of resources will not achieve " congestion "
本文首先以生產要素擁擠的概念為研究問題的展開基點,指出生產要素擁擠是一種要素配置的無效狀態,利用等產量線圖、生產要素的可處置性理論與廠商生產理論對傳統經濟區域與很少提及的非經濟區域進行了研究,指出生產要素擁擠體現為等產量線后彎,生產要素擁擠形成的后彎部分的等產量線構成了生產函數的非經濟區。In ship steering controller design, the nonlinear ship model should be written in siso strict feedback form. we start the recursive design with the system first state variable and continue with the second one. by introducing a change of coordinates, we choose lyapunov functions to stabilize the system and obtain the control law
在船舶航向控制方面,考慮船舶的穩態回轉非線性,應用backstepping方法設計:首先把系統化成單入單出的嚴格反饋控制形式(呈下三角結構) ,假設系統后一個狀態變量是前一個狀態變量的虛擬控制,通過適當的變量代換,在每一步構造李亞普諾夫函數,使前一子系統在虛擬控制下漸近穩定,逐步遞推出控制器控制規律,使整個系統在平衡點滿足一致漸近穩定性。Comparing with the quadratic b - spline curve, they have advantages by themselves : firstly, the shape of the curves can be adjusted locally by the parameters i ; secondly, the curves formed by blending functions of degree 4 can be g2 continuous. in addition, in order to meet various requests for continuity of curves in practical applications, corresponding polynomial functions can be used to construct the curves
但與二次均勻b樣條曲線相比,它們還有其自身的優點:首先,曲線的形狀都可用參數_ i進行局部調整:其次,四次調配函數所構造的曲線就可達到g ~ 2連續;另外,為了滿足實際應用中對曲線連續性的不同要求,可使用相應次數的調配函數來構造麯線。First we collect signals by shake and infrared temperature sensor, transfer them to computer by a / d instrument, dispel zero excursion of sensor and in - linearity of a / d transformation, save them in the form of data file. then transfer them to matlab, analyze and dispose by wavelet function and toolbox. by lot of experiments and data analysis we find distinct change of the character in different fault states
然後,我們在現場對砂光機進行實驗,利用振動及紅外線溫度傳感器現場實時採集信號,通過a / d采樣卡送入計算機中,採用逆向建模的新方法來消除傳感器零漂及a / d轉換的非線性,再以數據文件形式保存,然後在matlab中調用數據文件,應用小波函數及工具箱對其進行處理分析,經過大量的實驗及數據分析發現在不同的故障狀態下,特徵量有明顯變化。In the examples we get some evolution curves, such as the growth rates and shape functions, which are used to analyze the stability problems for the boundary layers of the fuselage and the wing
算例給出了擾動幅值增長和形狀函數等演化曲線,並對機翼、機身的邊界層穩定性進行了分析和研究。In the second chapter, a class of polynomial blending functions of degree n + 1 is presented. based on the functions, we present polynomial curves with some shape parameters. the generated curves are similar with the degree n bezier curves
第二章給出一類n + 1次多項式調配函數,並由此構造了帶形狀參數的多項式曲線,生成曲線具有與n次b zier曲線類似的幾何性質。Extending the cubic a - b - spline interpolation curves with the blending function of degree 4 ( 3 - b ), we get the interpolation curves of degree 4. the curves have not only kept the structures and properties of the cubic a - b - spline interpolation curves but also increased a shape control parameter, which expands the adjusting ranges of the curves and make the curves easier to be controlled
利用三b四次調配函數對三次- b樣條插值曲線進行了擴展,擴展后得到的四次插值曲線在保留了三次- b樣條插值曲線的結構和性質的同時,增加了一個形狀調節參數,從而擴大了參數對曲線的調節范圍,使曲線更易於控制。Because the position and shape of membership is only related to a, the complexity is deceased. 3 ) to the analytical structure of fuzzy controller, the nonlinear gain ' s adjusting scope of the designed fuzzy controller is larger than normal fuzzy controllers discussed in this paper, so the controller is more adaptive and robust, and has no control dead area
由於隸屬函數中位置和形狀的定位只與等比間距因子a有關,因此在對隸屬函數優化時僅須對a進行尋優,由此減少優化問題的復雜性; 3 )非線性增益可調范圍大,因此具有較好的快速性、適應性和魯棒性,且無控制死區。After this work, the paper discusses the property of uniform curve. when the multiplies of end knots equal the order of the basis, the inner knots are also the simple knots, the rational b - splines are translated to the rational b zier - like basis. studies show that these basis have the similar properties with the b zier basis, and satisfied the new recurrence relation
其次,在低階情況,研究了形狀參數對曲線的影響,並且討論了均勻情況下曲線獨有的特性,當k階有理b樣條端節點重復度達到k時,而內節點重復度為零時,這種有理b樣條轉化為一種有理b zier基函數,它們的很多性質和b zier基有驚人的相同點,滿足新的遞推關系In order to assure that the stress and strain state of structure is secure, the author analyses respectively the objective functions of the reasonable finished state and buckle - cable adjusted phase ; thus, the optimized model based on fga is framed. finally according to the example, the computation datum are compared with the iterative forward analysis method and the optimal control theory. the result shows that this method can be used conveniently and meet the construction and design precision
為了滿足大跨度鋼管混凝土拱橋施工的安全性與成橋預期的內力狀態和拱肋線形,本文結合工程實例,分別對合理成橋狀態和扣索索長調整的目標函數的確定進行了分析,將一組多變量、多約束的最小化問題無約束化,從而建立起適合於該問題的遺傳演算法優化模型,將其計算結果分別與迭代前進法和隨機最優控制理論進行了比較;結果表明,採用該方法編制的基於結構計算的遺傳優化程序操作靈活,能很好的滿足施工和設計要求。First of all, this article takes the cubic function elastomer in nonlinear system for examples, taking advantage of the method of state space and the dynamic simulation environment of matlab / simulink to convert the dynamics model into simulation model and choosing a suitable simulation arithmetic. at the meantime, the model parameter graphical can be prepared by use of the matlab ' s callback functions and will conveniently modify the parameters of system
首先,以三次函數型非線性緩沖包裝系統為例,從求解緩沖包裝系統動態響應的角度出發,採用matlab simulink模擬環境,利用狀態變量法將系統動力學模型轉化為模擬模型,選擇模擬演算法,利用matlab中的回調函數,編制緩沖包裝系統的參數圖形界面,可以方便修改系統的參數。A new method for controller design is proposed. after throwing a lot of study on existing nonlinear control methods, a new method is proposed which is derived from capacitor. considering the action exerted on electric particle between two plates of a capacitor, a kind of restricted function is constructed for state variable
在對現有非線性控制方法充分研究的基礎上,歸納、總結出一種新的工程式控制制方法,這一控制方法的思想來源於電容電極對極間電荷的作用原理? ?將控制器看作是電容電極,而被控對象看作是「粒子」 ,經過數學處理,形成一種對狀態變量的約束函數式。As a result, the curves of c3 and c4 continuity can be generated, and the shape of the curves can be adjusted by the parameters x. the quadratic non - uniform b - spline curves are further extended and the continuity of curves is improved in this paper ; with a local shape parameter in each piecewise curve, the shape of the curves can be controlled effectively ; moreover, cusps of curves can be generated conveniently on the curves while using multiple knots
對二次非均勻b樣條作了進一步擴展,提高了曲線的連續性;曲線的每一段上都有一個局部控制參數,利用它們可以更有效的控制曲線的形狀;同時,利用曲線的重節點可以很方便的在曲線上構造尖點。作為b樣條擴展曲線的應用,作者將上面構造的各次調配函數應用到三次- b樣條插值曲線上,得到下述結果。This paper analyses mainly viscoelastic properties of conveyor belt about the belt conveyor, constructs finite element discrete models and dynamic equations for parts and system of the belt conveyor, studies thoroughly automatic modeling theory from the static state to the dynamic state of the belt conveyor system including form function of the running routex element division parameter calculation ^ state equation formation automatically and solution of system and so on
本文通過對帶式輸送機輸送帶的粘彈性特性的分析,建立了帶式輸送機各組成部分及其系統的有限元離散模型和動力學方程,詳細地研究了帶式輸送機系統從靜態到動態設計的自動建模理論,其中包括運行線路的形態函數、質點劃分、參數計算、系統狀態方程生成及其方程的求解等。分享友人