structural dimension 中文意思是什麼

structural dimension 解釋
結構尺寸
  • structural : adj. 構造上的，結構上的，組織上的。adv. -ly
  • dimension : n 1 尺寸。2 【數學】次元，度（數），維（數）。3 【物理學】因次，量網。4 〈pl 〉容積；面積；大小，...
  1. Taking the contact stress, bend stress stiffness and temperature stress as the condition, taking the weight of the kiln tyre as optimization aim function, the redia and the width of the tyre are optimized general optimize methods just consider the affecting of the parameters to aim function, but in fact, structural parameters ( such as structure dimension, interval and so on ), physics and dynamics ( damp factor, conduct factor, friction factor material ' s elastic module strength limits and so on ), which would be changed after used. the difference are called discrepancy robust design ' s basic concept is : all design parameters " discrepancy will affect the aim funct ion and arouse the quality target discrepancy

    一般的優化方法，僅僅考慮了參數對其目標函數的影響，而實際情況下有些參數是變化的，產品的結構參數（如幾何尺寸、間隙等） 、物理和力學參數如阻尼系數、傳導系數、磨擦系數、材料的彈性模量和強度極限等的設計值與製造后和使用中的實際值會有差異，這種差異稱為設計變量和噪聲因素的變差。
  2. Finally, a correlative equation about bearing capacity of this structural member under bending and torsion is deduced, which may provide design of such structural members a valuable reference. to imitate centrifugal concrete - filled steel tubes used in real structures, three - dimension models are built up by using finite element method. the resistance performance of this structure under complex loads is studied

    利用三維有限元模擬分析方法對離心鋼管混凝土在彎扭組合作用、彎壓組合作用、壓扭組合作用下的構件彈性應力分佈進行了研究，分析了離心鋼管混凝土構件在組合作用下的工作機理和承載力的相關關系。
  3. Test methods for natural facing stones part 8 : test method for structural performance of dimension stone cladding systems by uniform static pressure difference

    天然飾面石材試驗方法第8部分:用均勻靜態壓差檢測石材掛裝系統結構強度試驗方法
  4. It builds a physical model according to hoisting capacity, lifting angle and structural stabiliy, theory, solves the problem of function relationships among lifting capacity, lifting angle, boom weight, boom dimension and deduces the natural boundary condition of design parameters, providing a new way to determine crane design parameters

    摘要將起重量和起吊幅度為基本設計依據，以壓桿穩定理論為分析基礎，結合專業知識，建立物理模型，解決了起重量、起吊幅度與吊臂質量、吊臂主要參數之間的函數關系的難題，首次確定出設計參數的自然邊界條件，為起重機設計者提供了確定設計參數的新方法和科學依據，具有開創意義。
  5. Eight trapezoid labyrinth flow - channels are designed through modification to the cell dimension and the number of flow cells based on the parameterized structural design. integral emitter prototypes combining exterior hull and exterior flow - channel are built using rapid prototyping technique, and structural dimension of those flow - channel are measured by optical microscope, the measuring results showed that the design can completely meet the requirement of emitter accuracy

    文中以參數化的設計思想，通過改變梯形迷宮流道單元尺寸和單元數設計了8種梯形迷宮流道，採用快速成形技術製作出外管與內迷宮流道一體化的滴頭原型；利用最小標注尺寸為50nm的光學顯微系統對滴頭流道結構尺寸進行了測量，分析結果顯示流道尺寸精度完全滿足滴頭的製作要求。
  6. According to the special shape and operate requirements of the torpedo, the structure and moulding process of the torpedo shell are established, in which the body and overlay block with grooves are moulded by fiber winding, and close moulding respectively with the adhesive by limited stop compression. in the light of the selection of raw material system, composite system with outstanding performance are defined, based on which the mechanical properties are tested., with the overall consideration of structural characters and design demands, the main factors which may have effects on the strength and stability ( including stiffness section dimension, stiffeners space, skin thickness and skin lay angle ) is optimized one by one for the structure design parameters on the base of the fem model of skin, stiffness and layover block by fem. as a result, the prototype with 1 : 1 proportion and its structure and lay optimization design are completed. the moulding technology for polyurethane foam moulding the stiffened shell is obtai ned in terms of the design, manufacture moulding, experimental mould and tooling

    依據在研產品特殊的外型結構和使用要求，確定了該型號水雷復合材料殼體的具體結構形式和復合成型工藝路線，即由纖維纏繞工藝成型主體異形件，閉模成型帶通槽外貼塊，用限位加壓工裝實現粘接的工藝路線；通過對原材料體系的篩選，確定了綜合性能較好的復合材料體系，以此為基礎進行了力學性能測試；運用有限元方法，建立了蒙皮、筋條和外貼塊的分析模型，綜合考慮結構特點和設計要求，對影響結構強度與穩定性的主要因素（包括筋截面尺寸、筋間距、蒙皮厚度、蒙皮鋪層角度）分別進行了結構設計參數的優選，最終完成了復合材料異形耐外壓殼體1 : 1樣件和縮比實驗件結構及鋪層優化設計；完成了聚氨酯泡沫胎成型內置加筋殼體的成型工藝技術研究；對縮比件進行外壓性能測試，並給出了應力、應變測試結果。
  7. Anthropogenic activities ( e. g. development, over - grazing, timber harvest ) can disrupt the structural integrity of oasis - desert landscapes and is expected to impede diversity communities across the landscape and make it fragmented. with human dimension and activities enhancing, the patchiness grain, edge density and landscape contrast become large, landscape diversity and patch fractal dimension decreased

    隨著人類活動的增強，斑塊粒度、邊緣密度、分散度、對比度變大，而景觀多樣性下降，斑塊分維數變小，人類生產經營活動導致了綠洲-荒漠景觀破碎化，綠洲和荒漠生態系統界面上的突變性、對比度和異質性增強。
  8. Structural shape and dimension for forging die

    輥鍛模結構型式及尺寸
  9. The author analyses and studies the development and present situations of chinese foreign trade after china ' s reform and opening - up, changes and characteristics of import and export structure, factors of fast improvement of export structure and problems and conflicts of export structural changes etc. author also rationally considers several relations in export structure and draws the basic conclusion after analyzing and researching : ( 1 ) china has become a big country of international trade but not a powerful country and there is still a long way to catch up with other powerful countries of international trade. ( 2 ) chinese export structure has been in a important adjusting moment in which the direction of chinese export trade development is to preserve the current dimension of non - professional labor - dense products as well as put the main point of further extension on capital - dense, technology - dense and knowledge - dense products. ( 3 ) to realize the upgrade of export structure in china, we must emphasize on orientation of competitive advantage, and convert potential comparative advantage into practical competitive one

    通過分析和研究得出的基本結論是： （ 1 ）中國已發展成為世界貿易大國，但是還算不上世界貿易強國，與世界貿易強國相比，尚有很大差距，要成為世界貿易強國，還有很長的路要走； （ 2 ）中國出口商品結構已進入到一個大調整階段，今後中國商品出口貿易的發展方向應該是在保持非熟練勞動密集型產品出口已有規模的同時，將商品出口貿易進一步擴張的著眼點置於資本、技術與知識密集型產品上； （ 3 ）要實現中國出口商品結構的升級，必須以競爭優勢為導向，將潛在的比較優勢轉化為現實的競爭優勢。
  10. The optimum design of the beat back - impact crusher is proposed, which aims at the highest efficiency of the machine work. the optimum designed mathematics model of the main structural dimension of the crusher ( m, xc, s, w 2 > ir ) is built with restraining conditions such as force condition, energy condition, hammer steady condition, no moving interference, strength of spin axle and bearing condition, upper limit and lower limit of the design variant condition etc. finally, an example is give to illustrate the efficiently of the method proposed

    在綜合考慮影響破碎機效率的各因素的情況下，提出了滿足以力，能量，錘頭穩定性，幾何條件，不發生運動干涉，轉子軸和滾動軸承的強度等約束條件，建立了包含破碎機關鍵參數（錘頭質量m ，軸心o到銷軸錘頭接觸距離r ' ，四川大學碩士學位論文錘頭質心到銷軸與錘頭接觸點的距離拙，錘頭與巖石碰撞到銷軸與錘頭接觸點的距離s ，轉子的速度。
  11. Standard test method for structural performance of exterior dimension stone cladding systems by uniform static air pressure difference

    用均勻靜態空氣壓差法測定規格石料的房屋骨袈外墻體系結構性能的標準試驗方法
  12. Abstract : a optimum design method in which the optimum shapes and dimension of cross sections are selected to minimize the structural volume and get the global optimum solution, is presented first by means of the method of the genetical gorithm. the numerical results show that the model is valid

    文摘:利用遺傳演算法，首次提出「取剛架截面形狀和尺寸規格為設計變量，結構體積為目標函數，求全局最優解」這一優化模型.通過對各個計算環節的研究，確立了可行的計算方法，編制計算程序，並以算例證明該方法的有效性
  13. At first, an analytical solution to one dimension consolidation of half - infinite homogeneous structural soft clay ground is derived, then analytical solution to one dimension consolidation of finite thickness homogeneous structural soft clay ground are given. in the meantime numerical solution to one dimension consolidation of layered structural soft clay ground is derived. furthermore, the calculation method of the consolidation degree of sand drains ground is given under the condition of instant loading, where soil structure characteristic is taken into the formula account

    建立了結構性軟土地基固結沉降的基本理論，獲得了半無限結構性軟土地基一維固結計算解析解，有限厚度結構性軟土地基一維固結計算解析解，成層結構性軟土地基的一維固結數值解以及考慮土結構性影響的砂井地基固結度計算方法。
  14. Compared with traditional optical materials, the specific stiffness of sic is much bigger. if the structural dimension is the same, the lightweight extent of sic components is the highest. furthermore, sic have these merits of low thermal distortion, excellent optical performance, isotropy, innocuity and molding for complex shape

    與傳統光學材料相比， sic的比剛度最大，在尺寸相同的條件下，其輕量化程度最高；此外，它還具有熱變形系數小、光學性能好、各向同性、無毒、能夠實現復雜形狀的近凈尺寸成型等優點，因而成為空間反射鏡的首選材料。
  15. This opens up a new way of solving fractal dimension with the box method based on the computer simulation graph of structural plane. the fractal dimension of structural plane of rock in mass in chengchao iron ore is obtained, which presents a true picture of the fractal features of rock mass structural plane

    開拓了根據結構面計算機模擬圖，應用盒子法求解分形維數的新方法，並求得程潮鐵礦巖體結構面分佈的分形維數，真實地反映了巖體結構面分佈的分形特徵。
  16. Firstly, this paper summarizes modern weaponry stealth technology at home and abroad, and lays special emphasis on analyzing stealth problem of cruise missile ’ s guidance head cover, aerocraft radar canopy and other privileged sites. secondly it makes a research on related theories of transparent metallic mesh that applied to missile ’ s guidance head cover and aerocraft radar canopy, and deduces relational expression between transparent metallic mesh structural parameters and radar wave - shielding efficiency, infrared transmitting. we use laser direct writing technique to fabricate a metallic mesh ( dimension : 70mm 70mm ; line width : 5 m ; period : 350 m ) on glass surface, then do experiment to test radar wave - shielding of metallic mesh via radar transmitting and receiving device

    本文首先綜述了國內外現代武器系統隱身技術方法;重點對巡航導彈導引頭罩和飛機雷達艙罩等特殊部位的隱身問題進行了研究，研究了金屬網柵用於導彈頭罩和飛機雷達艙罩隱身的相關理論，推導了金屬網柵結構參數對雷達波屏蔽效率和透紅外關系式;用激光直寫工藝，在玻璃表面上製作了一塊面積為70mm 70mm ，線寬為5 m ，線周期為350 m的金屬網柵;在實驗室里用雷達發射和接收裝置測試了網柵對雷達波的屏蔽實驗;認為利用金屬網柵技術對雷達波具有一定的屏蔽作用，而且不影響精確制導的紅外線高效透過。
  17. The formed products are in accurate structural dimension, good consistency and high efficiency

    沖壓出的產品結構尺寸精確，一致性好，生產效率高。
  18. The results indicate that the conductance and the resonant splitting are dependent on the structural dimension, the number of quantum dots and the strength of negative potential

    計算結果表明，電導圖譜及其共振峰的劈裂依賴于量子點的幾何尺寸、量子點的數目及量子點中勢的大小。
  19. The urban spatial structure in this paper is the inner one of a city, is the spatial reflection of the mankind ' s various social economic activities and the function organization of the particular city region, it includes the structure of land use, the spatial structure of economy, the spatial distribute of the population, the spatial structure of employment, the transportation network structure, social spatial structure, the spatial structure of living activities, etc. by field survey of 1134 land - value samples of urban region of siping, based on the correlative theories of the regional economics, economic geography, urban geography and urban economics, adopted the gis and the quantitative and qualitative methods, this article analyzes the character and problems of the spatial structure of siping city during the transitional phase from temporal and spatial factors, discusses the influences of the land - value on the urban spatial structure from temporal, spatial and structural dimension, put forwards the countermeasures that optimizes the spatial structure under the constraint of land - value

    本文所指的城市空間結構為城市內部的空間結構，是人類的各種社會經濟活動和功能組織在特定城市地域上的空間投影，包括土地利用結構、經濟空間結構、人口空間分佈、就業空間結構、交通網路結構、社會空間結構、生活活動空間結構等。本文通過對四平市城區1134個地價樣點數據的實地調查，在綜合運用區域經濟學、經濟地理學、城市地理學、城市經濟學等相關學科理論的基礎上，採用gis ，運用定性與定量相結合的方法，從時間、空間兩個序列分析了轉型期四平城市空間結構特徵和存在問題，並從地價的時間、空間和構成等三方面探討了轉型期四平市地價對城市空間結構的影響，提出了地價約束條件下優化四平城市空間結構的對策。
  20. Five factors of effecting specify the bearing capacity of drilled grouting pile ( engineering properties of soil, structural dimension of pile, stiffness of pile, time ) have been concluded through introducing the transmission of load mechanism of drilled grouting pile. at the same time, the effecting parameter has been collected. the paper build the ann model in predicting ultimate bearing capacity of drilled grouting pile and discuss in detail the extraction of inputting nodes information when quoting the fundamental principle of ann model and introducing research process of the improved bnn

    本文簡要介紹了樁基承載力的研究現狀並指出將神經網路引入樁基工程的意義，從介紹單樁荷載傳遞機理出發總結了影響單樁極限承載力的五種因素（樁周土的工程性質、樁身結構尺寸、樁的剛度、時間以及施工工藝）並提取了相應的參數；引用神經網路基本原理，詳細介紹了改進bp神經網路的研究過程，從而建立了預測鉆孔灌注樁極限承載力的神經網路模型；並詳細討論了本模型的神經網路輸入結點信息的提取，在工程實例的基礎上進行了數值計算。
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