柱形立標 的英文怎麼說
中文拼音 [zhùxínglìbiāo]
柱形立標
英文
pilebeacon-
Based on the previous work, the equations of motion and elastodynamics are changed. a high - order staggered velocity - stress finite - difference formula of the acoustic field in borehole are set up in cylindrical coordinate, and the corresponding code is accomplished
本文在彈性波動力學的基礎上，將運動方程和本構方程作適當變形，採用交錯網格技術建立了井孔波動方程在柱坐標系下的速度?應力高階有限籌分公式，並編制了相關計算程序。Eigenequation about singularity, singular stress fields and electrical displacement fields near the interface edge are obtained under axisymmetric distortion. finally, a special finite element formulation which is based on the principle of minimum potential energy has been developed for determining the orders of the singularity of the singular stress fields around the singular point ( interface edge, interface corner and the interface crack ) in the bonded dissimilar anisotropic / anisotropic, piezoelectric / piezoelectric as well as piezoelectric / anisotropic materials. the numerical results show that this method is very convenient and efficient
最後，從最小勢能原理出發，在僅僅考慮奇異性支配區域這一前提下，對于彈性接合材料的平面變形問題和擬平面應變問題，以奇異點為原點分別建立極坐標系和圓柱坐標系，通過分部積分消除廠項，從而使奇異性問題的求解由原來的二維降為一維；對於三維變形問題，以奇異點為原點建立球坐標系，通過分部積分消除項，從而使奇異性問題的求解由原來的三維降為二維。The corresponding control equation is given. the control equation and boundary condition about the addiontional small deformation ' s effect caused by initial stress using virtual principal theory in cylindrical reference frame. generalized stress and strain and equivalent constitutive equation are given
第四章提出了描寫柱形薄殼中初應力的數值特徵，將應力的三維分佈轉化為二維分佈，給出相應的支配方程；在柱坐標系中，利用虛功方程建立了初應力對附加小變形影響的控制方程和邊界條件；給出了廣義應力、廣義應變及等效本構關系。The conformal microstrip antenna with some unique character has been applied in many fields, especialy on speedy objects. in this paper, an efficient fdtd algorithm is introduced to analyse the microstrip antenna. firstly, the fdtd formula in descartes coordinate system and in cylindrical coordinate system are obtained from the time _ dependent maxwell equations using the yee algorithm in a calculating region where the dielectric parameters are independent of time and space. the choice of the space discretization units and the time discretization interval are discussed which are decided by the accuracy and stability respectively. the shape and setup of the excitation source are discussed too. the excitation source is chosen to be gaussian pulse in shape. secondly, the mur ' s first - order and second - order boundary condition are deduced in cylindrical coordinate system. the methods of transforming radiation fields from near zone to far zone in the frequency domain and in the time domain are presented when fdtd is applied to analyse the characteristics of far zone. finally, three kinds of microstrip antennas are analysed. they are a slot antenna that lies on a plane ground of a microstrip, a slot antenna that lies on a cylindrical ground of a microstrip and a microstrip line _ fed aperture coupled stacked rectangular patch antenna in cylindrical coordinate system
本文從麥克斯韋旋度方程出發，建立了笛卡兒坐標下無源空間中均勻無耗媒質的fdtd基本方程和圓柱坐標下無源空間中均勻無耗媒質的fdtd基本方程，詳細討論了fdtd法計算中時間步長和空間步長的選取原則以及激勵源的類型和設置；推導了mur一階和二階邊界條件在圓柱坐標下的差分格式；給出了在用fdtd法計算天線的遠場輻射特性時必需採用的頻域和時域近場遠場變換技術；最後用fdtd法計算了平面微帶縫隙天線、柱面共形微帶縫隙天線和柱面共形微帶層疊天線的輸入阻抗和遠區輻射場，並分析了天線的一些參數的變化對天線輸入阻抗的影響，得出了一些有用的結論。Flat - bottomed, vertical, cylindrical storage tanks for low temperature service - recommendations for the design and construction of prestressed and reinforced concrete tanks and tank foundations, and for the design and installation of tank insulation, tank liners and tank coatings
低溫用平底立式圓柱形儲罐.預應力鋼筋混凝土儲罐和儲罐基礎的設計和製造儲罐內襯和儲罐塗層的設計和製造推薦標準The paper develops the basic system of state - appraisal method aiming at monolayer steel structure workshop ; according to the influence factor of structural reliability, the paper also establishes the appraisal index and gradation principle to the effect foundation column - system roof covering - system and crane girder - system ; the appraisal method of main index of unit section ' s shortening surface temperature and deformation is especially researched ; the integrated appraisal method of structural reliability of industrial building is set up on the basis
論文針對單層鋼結構廠房，首先建立了狀態評定方法的基本體系：根據結構可靠性的影響因素，進一步建立了作用、地基基礎、柱系統、屋蓋系統、吊車梁系統的評定指標和分級原則；專門研究了構件截面消弱、表面溫度、構件變形等主要指標的評定方法；在此基礎上，建立了廠房結構可靠性的綜合評定方法。Abstract : take cylindrical compression string which has been applied extensively in the piston compressor with the concentric ring valve for example, the mathematics model of optimum design for the air valve string has been set and the optimum value of single & multiobjective has been evaluated by the way of monotonic analysis
文摘:以活塞式壓縮機環狀閥中使用最為廣泛的圓柱形壓縮彈簧為例，建立了氣閥彈簧優化設計的數學模型，並用單調分析法進行了單目標和多目標的優化求解Manufacturing is on the foundation, one state modernization rest up on mightiness reliable advance manufacturing foundation, is " reliable modernization, secure modernization " ; of economic development possess. it is one importance field that set obtain employment incompatible ; it was not only high and new technology " s bearer, but its power also. it is important attribute and object in our country ' s industrializatoon, it is also driving force in urbanized. manufacturing production mode is confronted with graveness change, it is confronted with from " ford mode " transiting to " flexible mode ", from extensive management transiting to intensive farming, it is still confronted with advanced technology and powerful capital competition abroad after intered into wto ; it is backbone industries and dominant strength and primary revenue source industry in zhejiang economic development, actually zhejiang is becoming manufactured product critical industry export depot of inland, zhejiang manufacturing possess unique industrial organize form, created unique institution and culture, it has become theoretical investigation prototype of inland. this article handles active branch of modern economics - industrial economics, to investigation the importance industry in this representative region, in the hope of obtain beneficial research findings
製造業在經濟發展中具有重要地位，它是一個國家經濟發展的基石，也是增強國家競爭力的基礎，一個國家現代化建立在強大可靠的先進製造業基礎上，是「可靠的現代化、安全的現代化」 ；製造業是解決就業矛盾的一個重要領域；製造業不僅是高新技術的載體，而且是高新技術發展的動力。在我國製造業現代化是工業化的重要標志和目標，也是城市化的推動力。製造業的生產模式面臨重大變革，面臨從「福特模式」向「柔性模式」轉變，從粗放經營向集約經營轉變，還面臨入世后國外先進技術和雄厚資本的競爭；製造業在浙江是支柱產業，是浙江經濟發展的主導力量，如今浙江已成為國內重要的工業製成品出口基地、主要的稅收來源產業，浙江製造業還具有獨特的產業組織形態，創造了獨特的制度與文化，成為國內理論研究的典型樣板。During dynamic analysis of framework, according to mechanical performance of reinforced concrete frame structure under seismic force, the element of beam and column can be simplify into 5 pole element whose stiffness is variable. then damage model of 5 pole elements with variable rigidity can be established if the damage parameters based on elastic transformative energy are generalized into pole elements
針對地震力作用下鋼筋混凝土框架結構樑柱的受力特性，對框架進行動力分析時將樑柱構件簡化為五段變剛度桿單元，將基於彈性變形能的損傷指標推廣到桿件，建立了該五段變剛度桿單元的損傷模型。After confirming the mix property of rpc, the 28 groups of cubes ( 70. 7mm ) the 48 groups cube ( 100mm ) and the 6 groups of prism specimens were carried out to study rpc200 strength standard, discuss the relationship between the mechanical properties ( peak strain 、 young ' s modulus and poission ' s ration ) and prismatic strength, and establish the stress - strain curve for rpc200
在確定rpc配合比后，本文進行了28組邊長70 . 7mm立方體試件、 48組邊長100mm立方體試件和6組100mm 100mm 300mm稜柱體試件的力學性能試驗，研究了rpc200的強度標準，探討rpc200的基本力學指標（峰值應變、彈性模量、橫向變形系數等）與稜柱體抗壓強度之間的關系，建立了rpc200應力應變曲線上升段方程。分享友人