給定約束條件 的英文怎麼說

中文拼音 [gěidìngyāoshùtiáojiàn]
給定約束條件 英文
specifying constraint
  • : 給Ⅰ動詞1 (送對方某物; 使對方得到) give; grant 2 (用在動詞后 表示交與 付出) pass; pay 3 (叫; ...
  • : Ⅰ形容詞1 (平靜; 穩定) calm; stable 2 (已經確定的; 不改變的) fixed; settled; established Ⅱ動詞...
  • : 約動詞[口語] (用秤稱) weigh
  • : Ⅰ動詞1 (捆; 系) bind; tie 2 (控制; 約束)control; restrain Ⅱ量詞(用於捆在一起的東西) bundle;...
  • : Ⅰ名詞1 (細長的樹枝) twig 2 (條子) slip; strip 3 (分項目的) item; article 4 (層次; 秩序; 條...
  • : Ⅰ量詞(用於個體事物) piece; article; item Ⅱ名詞1. (指可以一一計算的事物) 2. (文件) letter; correspondence; paper; document
  • 約束 : keep within bounds; restrain; bind; bound; boundage;tie; restraint; restriction; engagement; repr...
  • 條件 : 1. (客觀的因素) condition; term; factor 2. (提出的要求) requirement; prerequisite; qualification
  1. On the premise of a given set of material parameter, structural boundary shape and condition, design variables - thickness of plate and shell, is designed to minimize the structural weight subjected to the constraint conditions. 1. for the problem with size and stress constraints, full stress design method is used to solve the sectional optimization of plate and shell structures

    了板殼的材料常數、板殼結構的邊界形狀和邊界的前提下,確表徵板殼厚度的設計變量,在滿足下實現結構重量最小: 1 .對于尺寸和應力的問題,使用滿應力方法求解。
  2. The centrosymmetric structural dynamical systems with damping were studied. the nearest triple matrix of the centrosymmetric with satisfying characteristic equations was found to a given triple matrix ( mass 、 stiffness and damping matrices ). finally, numerical examples were given

    3 .研究了阻尼中心對稱結構動力模型修正問題,對的三重矩陣(質量矩陣、剛度矩陣和阻尼矩陣) ,求滿足譜且具有中心對稱特性的「最接近」的三重矩陣,並出數值算例。
  3. With the experiment part, the errors of sk - 21 nc machine tool have been measured, and a serial of data is gotten which lead to the error discrimination. ( 3 ) based on the kinematical theory of mbs, the calculation methods for the ideal center envelop curve of grinding wheel on cam grinding, the practical cutter track, inverse contour of cam, ideal nc instructions, precision nc instructions, the inner / outer normal and the fitting criterion of curve have been all discussed in detail in this paper

    ( 3 )通過精密加工的方程,探討理想刀具路線、逆變數控指令與實際刀具軌跡之間的映射關系,解決誤差補償技術提高加工精度的核心問題? ?當要求數控磨床的砂輪中心準確到達的理想點時,精密數控指令值究竟該是多少,如何能夠通過計算,獲得這樣的數控指令值,出經修正的數控指令計算方法。
  4. First of all, the data system in the article is discussed and the goal function used to optimize the agricultural structure and the inhabitable condition are offered. then according to the characteristic of agricultural data system the logical structure of data bazaar in the data warehouse in the system is designed and the program for drawing out the data for data warehouse are offered. and we use the analysis services in sql server 2000 to design the multi - dimension data volume, which laid the groundwork for the later olap and data mining, we make use of the technique of mining the association rules to discover the rules in the data which are processed in a certain extent

    本文首先探討了該系統中的數據指標體系,出了相應的優化農業結構使用的目標函數和;然後根據農業數據的特點,設計了該系統中的數據倉庫中的數據集市的邏輯結構,出了相應的數據倉庫數據的抽取程序;利用sqlserver2000中的analysisservices設計了數據倉庫的多維數據集,為後面的聯機分析處理和數據挖掘打好了基礎,並利用關聯規則挖掘技術,對經過一處理之後的數據進行挖掘;最後選擇windows2000作為網路服務器、 sqlserver2000數據倉庫的服務器、利用microsoftvisualinterdev 、結合asp 、 frontpage 、 photoshop等作為系統開發平臺,設計開發基於intranet的農業結構優化決策支持系統,使得決策支持系統在intranet進一步擴展。
  5. It can be boiled down to combinatorial optimization problem in mathematics. on the basis of summarizing the complexity and structural features of hmb and rules of its design and manufacture and analyzing the spatial relationship in 3d layout of hmb, the expressions of relevant variants are put forward using the object - oriented approach

    在全面總結液壓集成塊設計問題的復雜性特點,以及集成塊類零部的結構特徵和設計、製造信息組成規律的基礎上,本文深入分析了集成塊立體布局的空間關系,用面向對象方法義了與該問題有關的特徵變量的示性表達式,出優化目標和,進而確立了集成塊設計問題的數學優化模型。
  6. By analyzing the relationship between the fluctuation of quality level and the change of shelf life for the same kind of perishable foods, and studying the self - selection constraint conditions for two customer - groups in the bundling selling model, the pay - off conditions in the two different cases were put forward separately

    系統分析了同種易腐食品貨架期變動和質量水平的關系,並通過研究兩類消費群在捆綁銷售模型下的自選擇,分別出不考慮貨架期情況下零售商採取捆綁銷售價的盈利,以及基於貨架期情況下實施捆綁銷售價的盈利
  7. The mission section, the constrain conditions, the weight composition of the maneuverable missile, and the model of used in turbofan engine maneuverable missile were presented

    簡述了飛航導彈任務剖面、、導彈的重量組成以及渦扇發動機模型。
  8. In this paper, we designed the structure of the gear and rack in this actuating mechanism, elaborated the theory of its formation, and deduced the profile function and gearing function of the gear and rack. furthermore, we deduced the inherent radius of going around a turn under certain circumstance, the condition of the correct gearing and the continuous transmission. in order to make the mechanism move steady, we designed the derivation mechanism and manufacture the modle

    本文對該傳動機構中的漸開線柱齒鼓形齒輪和空間齒的結構進行了設計,並出了齒輪和齒的成型原理,推導出了漸開線柱齒鼓形齒輪和空間齒的齒廓參數方程、嚙合方程;進一步分析並確了漸開線柱齒鼓形齒輪、空間齒嚙合傳動下所能實現的固有轉彎半徑和運動,並對其側隙及效率進行了計算和分析。
  9. The values obtained from the optimum calculation are compared with that from the conventional calculation, and the result shows that, by means of the optimum design, under the given restrains, the pipe heat exchanger can operate well with a reduction of over 25 % heat transfer area

    實例優化計算結果與常規計算結果的比較表明,優化設計可使管式換熱器在滿足給定約束條件下,節25 %以上換熱面積,提高管程和殼程的流速,從而提高傳熱系數,最終得到操作、能耗和投資等方面的最佳經濟結構。
  10. Based on the analyses of the investment of nozzle tube net and relationship between the annual operation cost and tube diameter function of a fixed spray irrigation system, a mathematic model to calculate the economical tube diameter of a spray irrigation system is developed by using the minimum expense norm and nonlinear planning theory in engineering economic analysis, and a direct calculation formula for the economical tube diameter in unrestrained conditions is presented

    摘要在分析了固式噴灌系統的管網投資、年運行費用與管徑函數關系的基礎上,利用工程經濟分析中費用最小化準則和非線性規劃理論,建立了求解噴灌系統管網經濟管徑的數學模型,並出了無直接求解經濟管徑的計算式。
  11. A new method for determining knots to construct polynomial curves is presented. at each data point, a quadric curve which passes three consecutive points is constructed

    一般認為,在滿足給定約束條件的前提下,一曲線具有的應變能越小,則該曲線的形狀就越好。
  12. A full mathematical model of optimal flow pattern design withengineering constraints was put forward, based on modern optimal control theory. an optimal flow pattern design was presented for optimizing meridional channel of axial flow turbine. according to integral optimization of turbine stages, a full physical model and mathematical expression were put forward for proposition of optimal flow pattern, including all performance parameters in turbine stages. this problem was further recast into a typical form control to maximize specific performance index such as work or efficiency of stage with given initial state, fixed terminal condition and constraints for part of state terminal variables. the program was also worked out according penalty function method and conjugate gradient method. the optimal distribution of c1ur1 ( r1 ) was obtained according to constraint conditions and maximized objective function

    把近代最優控制論方法引入軸流透平葉片的設計,在優化的軸流透平子午通道內,建立包括透平級內所有性能參量的最優流型命題的完整的物理模型及其數學表達式,並歸化為一個在初始狀態、自變量終端固、部分狀態變量終端受有下,使級的某一性能指標(如級的功率)達到最優的最優控制問題,應用「代價函數法」及「共軛梯度法」編制計算程序,計算得到符合給定約束條件、並使目標函數取極值的最優環量分佈,結果是令人滿意的。
  13. An original mesh generation method based on the nc track points of tool surfaces is proposed here, the method can automatically generate meshes consisting of only quadrilateral elements, which is desirable for better accuracy and efficiency of simulation. besides, an automatic local coarsening algorithm for structured quadrilateral meshes is also developed. for arbitrary discrete points on auto body surfaces, an automatic triangulation method is adopted and a series of mesh optimization methods with given constraint conditions are proposed

    創新地提出了基於模具型腔表面nc數控軌跡點的全自動四邊形網格生成演算法,提出了結構化四邊形網格局部自動優化演算法,研究了基於車身曲面離散點的三角形網格自動生成演算法,並提出了給定約束條件的三角形優化演算法,探討性地研究了基於模具曲率半徑的板料初始網格局部自動細化演算法。
  14. It confirms the movement equation of particle and adopts death penalty function to deal with all constraint term, and provides with the step of algorithms to solve 0 / 1 knapsack problem

    了該演算法中粒子的運動方程,採用死亡罰函數法處理了出了該演算法求解0 / 1背包問題的實現步驟,並對實驗數據進行了測試。
  15. Digital design platform using the " top - down " design methods, this product is the highest form of the component unit began as a component of the overall system to be considered according to their products in the mutual position, played the role and function of the realization of the establishment of such products constitute the graphic layout, through to design constraints, the key design parameters, such as design information capture products to concentrate on aircraft design intent, top to bottom to transmit design information products launched throughout the design process

    數字化機構設計平臺採用「自頂向下」的設計方法,這種方法是從產品構成的最頂層開始把組成整機的部作為一個整體系統來考慮,並根據其在產品中的相互位置關系、所起的作用和實現的功能等建立產品構成的布局圖形,通過設計、關鍵的設計參數等設計信息,集中地捕捉產品整機設計意圖,自上而下地傳遞所設計信息,展開產品的整個設計過程。
  16. The innovative ideas in this paper are that robust h control theory based on conventional ip controller is applied to the high - precision feed of a single axis, and the controlled plant is composed of ip velocity loop and two - order model of linear motor. a constraint condition on y in the problem of h2 / h is deduced from the frequency criterion of riccati equation, which makes the repeated computation on r simple. considering the two - loops control problem, the h state feedback controller based on ip controller as the inner controller is applied to satisfy the velocity performance of the system, and a pi controller, the external controller, is used to satisfy the position performance

    本文的創新之處在於將傳統的ip速度控制器和直線電動機的二階模型作為一個廣義的被控對象,利用魯棒h _控制理論設計了一個h _狀態反饋控制器,以此解決高精度進的控制問題,並在此基礎上研究了h _ 2 h _混合控制問題,結合h _代數riccati方程正解存在的頻率判據,推出了一個控制器存在的,使以往須反復試探的,有了更進一步的范圍,簡化了計算。
  17. Gpp is virtually, under certain restriction, planning of a path from the starting point to ending point avoiding colliding, based on experience knowledge

    全局路徑規劃就是根據先驗知識(如地圖) ,在一下,規劃出一從起點到終點的無碰路徑。
  18. So it is an important research in the field of the electronic technology to reduce the loss caused by the switching device and to improve the efficiency of high frequency power converters. this paper primarily focuses on the optimization of the mosfet parasitic capacitance so as to reduce the switching loss and improve the efficiency of power transforming in converters using mosfet as switch

    通過分析mosfet器的開關特性,根據輸出電容c _ ( oss )引進的動態損耗來確優化器輸出電容西安理工大學碩士學位論文l變化曲線的目標函數,運用可行方向法求解帶的最優值,確出優化的輸出電容人變化曲線。
  19. Abstract : according to dea method, this paper father studies how decision making units to achieve their minimum cost and maximum revenue in production possibility set under some restricted conditions, it also proposes the calculating formulas of cost and revenue efficiency

    文摘:根據dea的方法原理,在求最小成本、最大收益非參數方法的基礎上,進一步研究了一下在生產可能集內最小成本及最大收益的計算方法,並出了相應生產單元成本和收益效率的分析模型。
  20. In this thesis, six topological characteristics and geometry characteristics are proposed that are invariant under affine transformations and axonometric projection. the definition of homograph is given based on these characteristics, and then the recognizing method of the homograph is proposed according to the definition of homograph at the same time

    其次,根據仿射不變性提出了6個用來描述多邊形形狀的拓撲特徵和幾何特徵,這些特徵在軸測投影下是不變的,以這些特徵為出了在軸測投影下類似形的義。
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