拉格朗日變量 的英文怎麼說
中文拼音 [lāgélǎngrìbiànliáng]
拉格朗日變量
英文
lagrange's variable-
2. dynamics analysis : by setting up jacon matrix differential coefficient sport is passed to descartes space. it makes terminal executing manipulator produce differential coefficient of acceleration and force in every different coordinates can be got. then the effective inertia, coincident inertia and gravity load of two manipulators are calculated by lagrange method. so generalized joint torque of each joint is got, and along with equivalent driving torque, actual driving torque of each joint can be worked out. 3
動力學分析：建立雅可比矩陣將關節空間的各關節的微分運動傳遞到笛卡爾空間，使末端執行器位姿產生微分運動，以用於求加速度及力在不同坐標系間的線性變換，再用拉格朗日法計算兩機械手的有效慣量、偶合慣量、重力載荷，從而計算得到各關節的廣義關節力矩，並與等效驅動力矩共同算得各關節的驅動力矩。Also, the author ’ s design strategy and creativity has been given in this paper. specifically, it includes : based on the feasibility analysis of the fit selection of control parameters in the aeration process, the aeration process of wastewater treatment of the joint - constructional complete - mixed activated sludge process has been aimed at in this paper. then, the state equations of the aeration process have been proposed in this paper, which is on the base of dissolved oxygen concentration ( do ) and discharge quantity of sludge ( qw ) as control variables, the concentration of bod and sludge as state variables. based on the present study on optimization control of wastewater treatment, the multivariable optimal control model with restriction factor has been presented in the paper with introducing modern control theory and system analysis into the field of activated sludge wastewater treatment,
具體包括:以完全混合、表面曝氣合建式活性污泥工藝的污水處理曝氣過程為研究對象，在闡述了曝氣過程式控制制參數選取可行性的基礎上，建立了以溶解氧濃度do和活性污泥排放量qw為控制變量，以曝氣池中有機物濃度s和微生物濃度x為狀態變量的活性污泥曝氣過程的基本狀態方程;運用現代控制理論的觀點和污水處理理論，在現有關于污水處理最優控制問題研究的基礎上，建立了有約束條件多變量能耗最小數學模型，該數學模型是以有機物排放總量和狀態變量的末值條件作為約束條件，曝氣過程的能耗最小作為目標泛函;採用增廣拉格朗日乘子法對最優控制問題進行轉化，並對應用極大值原理求解能耗最小這一最優控制問題進行了詳細的解析;引入約束運算元，應用具有控制約束的共軛梯度演算法對能耗最小這一最優控制問題進行求解，並進行模擬實驗驗證。Abstract : based on the conceptual two - flow model and pic numerical solution method developed in the companion paper, the present paper further investigate the model application in simulation of the typical debris flows. the model validation was carried out with the experimental data obtained by other investigators at dongchuan debris flow observation and research station in yunnan province. predictions were made in terms of the main controlling facetors including the channel slope, flow density and time interval between two blasts of debris flows. the predicted results could well reflect the observations reported by the geographers and sedimentologists
文摘:採用文獻[ 1 ]中提出的陣性泥石流運動與堆積的歐拉-拉格朗日模型，模擬了陣性泥石流的運動過程和堆積形態，得出了與地學研究中觀測結果較為一致的認識.文中針對影響陣性泥石流的關鍵條件，重點通過改變密度，坡度和各陣泥石流的時間間隔等參數，分析了這些參數變化對泥石流運動及堆積規律的影響，提出了簡化分析整個陣性泥石流的條件.研究表明，應用經試驗資料驗證的數學模型不但可以方便、快捷地定量描述陣性泥石流的一般特性，而且能夠提供關于陣性泥石流運動及堆積的更多細節Lagrange ' s variable
拉格朗日變量Many factors are considered in the study of the nonlinear buckling bearing capacities of the representative concrete filled circular and square steel tube columns, these factors include the sectional form, the slenderness ratio, the steel ratio, and the eccentricity ratio. the comparison between the test and calculating results shows that they have a good agreement. in theoretical investigation of the time - dependent behaviour of cft specimens, based on the three - dimensional viscoelastic theory, this paper proposed the three - dimensional finite element model of creep of core concrete, in which a linear three parameters visoelastic model was adopted
在對鋼管混凝土構件極限承載力的分析計算中，本文提出了核心混凝土的三維非線性應力?應變全量和增量本構關系模型，採用完全的拉格朗日表述來考慮與變形歷史有關的大變形問題，並對長細比、含鋼率和偏心率在較大范圍內變化的方、圓鋼管混凝土構件的非線性屈曲承載力分別進行了試驗和理論對比分析研究，結果表明二者符合較好。This text derives out the sufficient condition again no using lagrange function, but direct eliminating a variable from the side condition to transform conditional extreme value into the unconditional extreme value
本文不用拉格朗日函數，而是直接通過消去一個變量將條件極值轉化成無條件極值，重新推導出充分性條件。Abstract : in this paper, the proving of the generalized variational function ， of elastic and plastic contact problem is simplified by use of the vector analysis method
文摘:用拉格朗日乘子法，利用向量分析的工具及巧妙的變換，對帶摩擦約束的彈塑性接觸問題的變分不等原理進行了嚴格的證明。This lagrange point is a place in space where the earth ' s and the sun ' s gravity roughly balance to provide a point of near - equilibrium where a spacecraft can maintain its position while expending almost no energy
這個拉格朗日點是空間中地球與太陽的引力大致平衡的一處地點，在這個地方的宇宙飛船幾乎不需要消耗能量就能維持其位置不變。分享友人