機械約束 的英文怎麼說

中文拼音 [jīxièyāoshù]
機械約束 英文
mechanical restraint
  • 機 : machineengine
  • 械 : 名詞1. （器械） tool; instrument 2. （武器） weapon 3. [書面語] （枷和鐐銬之類的刑具） fetters, shackles, etc
  • 約 : 約動詞[口語] （用秤稱） weigh
  • 束 : 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;...
  • 機械 : 1. （利用力學原理組成的各種裝置） machinery; machine; mechanism 2. （死板; 刻板） mechanical; inflexible; rigid
  • 約束 : keep within bounds; restrain; bind; bound; boundage;tie; restraint; restriction; engagement; repr...
  1. This subject belongs to three - dimensional layout problems with behavioral constraints theoretically and concerns the knowledge of spacecraft design, mechanical engineering, computer science, mathematics, mechanics and system engineering. so it can be ascribed as the frontier fundamental and applied research of cross - discipline subject with np complexity theoretically. in term of engineering practice, this subject has extensive applications, such as layout design of spacecraft module, engineering machinery, submarine and shipping, tank, under - water suspension engineering, platform of marine drilling well, bullet train, multiple spindle box of machine tool, robot

    該課題在理論上，屬帶性能約束的三維布局問題，涉及航天器設計、機械工程、計算機、數學、力學和系統工程等學科，為交叉學科前沿課題的基礎理論和應用基礎研究，具有np難度；在實踐上，具有廣泛的工程應用背景，如航天器艙、工程機械、潛艇、船舶、坦克、水下懸浮工程、海上鉆井平臺、高速列車、組合機床多軸箱、機器人等的布局方案設計問題。
  2. 4 by studying mechanical optimization method, combining theory of metal cutting processing, summarize the optimization function by the cutting parameter as optimization aim and corresponding restraint condition. adopt one of optimization methods - compound shape method - to calculate cutting parameter ' s optimization result

    4運用機械最優化方法，結合金屬切削加工理論，推導了以切削參數為優四川大學碩i學位論文化目標的優化目標函數並確定了相應優化約束條件，採用優化方法中的復合形法實現了切削參數的最優化設計。
  3. The nonholonomic system, constraints of which are presented by the differential eguations, is defiend the mechanical system where differential eguations are not integral

    非完整系統是指具有用微分方程表示的約束，且這微分方程不可積分的機械繫統。
  4. The research based on the kinematic character of the manipulator indicates the system is equipped with constrains of nonholonomic

    通過對此非完整機械手的運動特性的研究表明了該系統具有非完整約束型。
  5. The effects resulted from the omnidirectional mobile platform on the singular configuration, manipulability and directional manipulability of the manipulator were analyzed profoundly, and the results were compared with that of the wheeled mobile manipulator which was subjected to nonholonomic constraint

    在廣義可操作度概念的基礎上，分析了全方位移動平臺對機械手奇異位姿、可操作度及方向可操作度的影響，並與受非完整約束的差分移動平臺對機械手的相應影響進行了比較。
  6. In the resin matrix composite materials filled with fsmf, the load is undertaken by the grain of fsmf and the resin matrix. the grain of fsmf restricts the deformation of the resin matrix, so the strength is improved. furthermore, the grain of fsmf can consume the energy of strain and controls the crack expand, so build up toughness

    在fsmf填充樹脂復合材料中，載荷是由fsmf顆粒和樹脂基體共同承擔的， fsmf顆粒以機械約束方式限制樹脂基體變形，從而產生強化； fsmf顆粒可以引發銀紋和剪切帶等損傷消耗應變能，並通過鈍化和釘扎機制阻礙裂紋的擴展，從而產生增韌。
  7. Pole, thin plate, thin shell in the electromagnetic elastic system, etc. when there is no machinery to restrain, the system has an unstable movement mode at least, and while exists restrain, after up to a certain critical value in electric current or the magnetic fielding, buckling must take place in the system

    電磁彈性系統中的桿、薄板、薄殼等，當沒有機械約束時，系統至少存在一個不穩定的運動模態，而存在約束時，當電流或磁場達到某一臨界值后，系統將發生屈曲。
  8. 3 、 chinese words divided syncopation technology is the difficulty of the query technique based on phrase. some divided syncopation such as mechanical matching method, feature phrase library method, restriction matrix method, syntax analysis method and comprehended syncopation method are emphasized

    對其中的幾種方法，如機械匹配法（即mm法） 、特徵詞庫法、約束矩陣法、語法分析法和理解切分法等做了詳細的比較和分析，並歸納出各自特點。
  9. On the basis of analysis of design criterion of shaft washer and housing washer of tandem composite type cylindrical roller thrust bearing, we present a mathematic model for optimal design in accordance with line contact requirement for cylindrical roller and race, design the washers thickness and thickness variation angle by the search algorithm of constrained stochastic direction

    摘要在分析串聯組合型推力圓柱滾子軸承軸圈和座圈設計準則的基礎上，按滾子與滾道線接觸要求建立其最優化設計數學模型，採用機械優化設計中的約束隨機方向搜索法計算軸圈和座圈的厚度、厚度變化角。
  10. The one of the loss of effectiveness is the friction piece ' s bum of the clutch, there fore, in the designing of priority, the clutch ' s with of friction power is smaller than the permitted value in the reduction of the starting the truck, and it also increases the permitted condition of decreasing cloth ' s friction hot volume

    選擇出摩擦片最佳參數，並保證離合器的機械性能是摩擦片參數優化的目標，本課題中由於失效形式之一是離合器摩擦片燒傷。因此，在優化設計中除保留減少汽車起步過程中離合器的單位面積滑磨功小於其許用值的約束條件外，還增加了降低離合器的滑磨熱容量的約束條件。
  11. In order to make the mechanisms possess high efficiency, high stability, and low cost, a thorough study for constraints and overconstraints in the linkage mechanisms, self - adjusting mechanism and self - adjusting structures of the mechanisms, the degree of the influences of errors in different kinematic pairs on performance of the mechanisms, and the theory and method of designing for the mechanisms without overconsstaint was carried out in this dissertation. on the basis of the generalized constraints and on principle of designing and controlling the constraints advantageously, the conceptions such as basic constraint, statically constraint, and over - statically constraint were put forward for the first time

    論文的主要研究成果及創新點有以下幾部分： （ 1 ）基於廣義約束的概念，從有利於設計和控制約束的原則，對機構及機械繫統中的常見約束進行了分類，首次提出了「基本約束」 、 「靜定約束」及「超靜定約束」的概念和分類定義；並首次將虛約束、重復約束、消極約束、多餘約束、過約束等概念，從本質上統一起來進行定義，將其都統一稱為「過約束」 。
  12. Furthermore, in order to improve the modeling accuracy of the whole robot structure, the elastic boundary pole with multi - restriction and the spatial lamella are study in this paper by using bem, and the boundary integral equations are set up. this lays foundations for introducing the spatial elements combined structure and the composed configure of the staff and plate, which has much application values

    此外，為了提高機器人機械結構的靜力學建模精度，本論文還對多約束柔性邊界桿件及空間板單元結構進行了解析研究，建立了相應的邊界元方程，為空間板單元組合結構及板梁合成的引入及研究打下了基礎。
  13. Abstract : the feature definition and the feature classification are given firstly. then the constraint - based parametric feature model of mechanical part is set up. a graph called feature relation graph is used to represent the feature model and a dynamic linked list to build and store the model. using the oop technique, the author realized the feature model. based on the parametric feature model, the feature hierarchical parametrization is analyzed and a parametric example is also given

    文摘:首先系統給出了機械產品造型領域特徵的定義以及特徵的分類；其次，建立了基於約束的機械產品零件的參數化特徵模型，並用特徵關系圖的形式表達特徵模型，同時採用動態鏈表構建特徵模型並用面向對象技術實現了零件的參數化特徵模型；最後結合實例分析了基於特徵模型的零件特徵分級參數化實現過程。
  14. The uncertainty of planar constraints causes overconstraints, which have no influences in the ory on smooth work of a machine with planar linkages, to form obstruction in fact and bring about a series of pernicious influences on the performance of the machines, especially on their dynamic behavior and the quality

    因此，本文以平面連桿機構為研究對象，以高效、高穩定性及低成本為主要目標，對機械中的約束與過約束、自調機理與自調結構、運動副誤差對平面連桿機構約束不確定性的影響程度以及無過約束機構的設計理論與方法進行了深入、系統的研究。
  15. According to an in - depth study on the representation of problems and its reason, this paper studies the strategy of test samples selection in the process of neural network training

    在此基礎上，本文以神經網路技術為例，展開關于神經網路技術機械科學研究院博士學位論文應用過程中樣本約束條件的研究。
  16. On the basis of analyzing the respective development and current situation at home and abroad of cad / cae / capp technology, this paper brings forward the research direction - integration and intelfectualization combining the expert system. by the analysis of the characteristic and restriction of the gear components, this paper upbuilds the characteristic model based on the restriction and actualizes data transmission and information sharing among cad. cae and capp. this paper analyzes the general principle of parameter determination and strength check about gear and researches the algorithmic of gear strength check based on the characteristic. this paper introduces expert knowledge into respective procedure of cad. cae and capp and actualizes the intellectualization in design process. strength analysis and process planning. on the basts of aforementioned research. this paper develops the cad / cae / capp integration software of gear components by means of the active - automation technology provided by autocad and vb and conducts the integration with general mechanical and shaft components integrated designing system. the application of the software indicates this system has perfect function and project applied cost

    本文在分析國內外cad cae capp技術各自的發展歷史與現狀的基礎上，結合專家系統，提出了智能集成的研究方向。以齒輪類零件作為研究對象，在分析了其特徵及約束的基礎上，利用數據庫技術和圖形單元建模技術，建立了基於約束的特徵模型，實現了cad cae capp之間的數據傳輸和信息共享；分析了齒輪參數確定、強度校核的一般原則，進行基於特徵的齒輪強度校核的演算法研究；將專家知識融入在cad 、 cae 、 capp各個過程中實現了設計過程、強度分析和工藝分析的智能化。在上述研究的基礎上，利用autocad2000提供的activexautomation技術，以vb為開發工具，開發出了齒輪的cad cae capp集成軟體，並與其它機械通用件設計系統進行了集成。
  17. Nevertheless, the widely existed overconstraints in the mechanisms will make the quality of the mechanisms very sensitive to the inevitable manufacturing, assembly errors ( especially, the errors resulted from the shape and position between kinematic pair elements and their axes ). at the same time, because the internal and external uncertain factors such as non - plane characteristic of dynamic parameters of links ( such as mass distribution, inertia forces, etc. ), bending and twist of links, and the changes of environment and operating condition are inevitable, they will form the disturbance to planar constraints and make them possess the characteristic of " uncertain "

    但是，平面連桿機構中廣泛存在的過約束，造成機構對製造、安裝誤差特別是運動副元素的形位誤差十分敏感；同時，由於不可避免的內部和外部不確定因素的影響，常常會造成機構運動的「障礙」及系統中某些構件的變形和運動副中的附加動載荷，引起機械的振動、沖擊、噪聲等而導致機械的效率和工作性能的降低。
  18. Analysis of characteristics of feedback constraint for mechanical systems

    機械繫統的反饋約束特性分析
  19. However most subdivision schemes do n ' t take the limit surface ' s convergence to some user - definded position parameters into account. so subdivision surfaces are always applied in computer animation and artware shape design, not in reverse engineering in which the position - setting constrains are appended to the result surfaces, precision machine design and medical image reconstruction

    然而由於大多數細分演算法不考慮極限曲面收斂到用戶指定的某些位置參數，細分曲面的應用始終只能局限在計算機動畫和工藝品設計，無法越雷池半步，應用到對曲面有定位約束要求的反求工程中，參與精密機械設計與醫學圖象重建。
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