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元设计     
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  dimensional design
     Three Dimensional Design of 5-29 Fan and Analysis of its Experiment Result
     5-29风机三元设计及实验结果分析
短句来源
     Quasi-Three Dimensional Design of Diagonal Flow Fan Impeller and Numerical Analysis
     斜流式风机叶轮准三元设计与分析
短句来源
     The Study of the Diagonal Turbine Runner of the Quasi-three Dimensional Design
     斜流式水轮机转轮准三元设计方法研究
短句来源
     The computer design program and computer drawing program of mixed flow impellers were established for the optimum aim of the minimum hydraulic friction resistance of the mixed flow impellers in passage based on one dimensional design theory,and a practice was shown for a 60 000t/a ammonium phosphate circulation pump.
     以一元设计理论为基础,以混流泵叶轮流道水力摩擦阻力最小为优化目标,建立了一套计算机辅助混流叶轮的设计和绘图程序,并对6万t/a磷铵循环泵进行了实例演示。
短句来源
     A Quasi-Three Dimensional Design Method for Diagonal-Flow Impeller
     利用平面叶栅资料的斜流叶轮准三元设计
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  element design
     The Nonlinear Finite Element Design and Analysis of Construction of Power Transmission Tower
     输电杆塔结构的非线性有限元设计分析
短句来源
     Calculation principle for finite element design of hydraulic reinforced concrete structures
     水工钢筋混凝土结构有限元设计计算原则
短句来源
     Finite Element Design of Functionally Graded MgO/Ni Composites
     MgO/Ni系梯度材料的有限元设计
     Finite element design of gantry for water power station gantry crane
     水电站门式起重机门架的有限元设计
短句来源
     The Finite Element Design Calculation of the Support Part Rigidity of the BXG Type Straightening Machine
     BXG型矫直机支承件刚度的有限元设计计算
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  meta design
     This paper explores the theoretical basis of governments'performance measurement meta design,which is considered as the basis of governments'performance measurement design.
     政府绩效评估的元设计 ,就是对政府绩效评估设计的设计。
短句来源
     The existing meta design can be classified by the methodology of "Ideal Type" into two types,which are called by the author as "Rational Model"and "Socially Interactive Model".
     它是政府绩效评估活动的基础 ,从根本上决定了政府绩效评估的成效。 根据“理想类型”方法 ,现实中的元设计可以概括为两种模式 :理性设计模式与社会互动设计模式。
短句来源
     The author analyses the characters and limits of both models,suggesting that a synthetic philosophy of meta design and a new mechanism to integrate the theoretical with the practical be developed to go beyond the limits.
     每种模式均存在着先天的不足与限度。 因而 ,克服目前政府绩效评估的困难的根本途径 ,就是在充分认识到其元设计“无能”的基础上 ,发展综合的元设计哲学 ,并努力建立健全理论与实务的整合机制。
短句来源
     This concurrency control mechanism is divided into two mechanism. One takes care of the meta design data and the other takes care of the design data.
     提出了基于两段锁、两版本的并发控制机制 ,改进了常规的两段锁机制 ,并将设计数据和元设计数据分开。
短句来源
  d design
     Full 3D design system is used for the twisted and bowed blade.
     弯扭叶片的通流设计采用全三元设计系统进行。
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      dimensional design
    In this paper, the influence of the design parameters on the flexural rigidity and bending strength of sandwich pipes is discussed with reference to such non-dimensional design parameters.
          
    Computerized three-dimensional design system for rectangular tile coating on hull surface
          
    To better guide the coating process of rectangular tiles on a ship hull, a computerized three-dimensional design method is proposed.
          
    A three-dimensional design system was developed using an MDT platform.
          
    Two- and three-dimensional design problems are solved.
          
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      element design
    Spectral tolerance determination for multivariate optical element design
          
    In this paper, some important issues related to the pMUT element design and micromachining processes are addressed.
          
    Finite element design of manipulator-coupled spacecraft for a research testbed
          
    The model was based primarily upon a three element design by Zajac but also considered the many different features present in other previously described models.
          
    The present study assessed the effects of guided notes on student responding and accuracy of recall of lecture material in an undergraduate psychology class using multi-element design.
          
    更多          
      meta design
    Meta Design often includes a comprehensive rationale for their work in the form of project or process documentation.
          
      d design
    An algorithm dealing with 3D design problems is described in Part II, which is developed from the 2D algorithm in the present Part I of the paper.
          
    Since the finite element mesh is fixed in the admissible 3D design domain during the period of topology evolution, the design-dependent loading surface may intersect the elements as the design changes.
          
    The bilinear 4-node serendipity surface element is constructed to describe the variable loading surface, and this matches well with the 8-node isoparametric 3D elements which have been used for the discretization of the 3D design domain.
          
    We used computed tomography (CT) and 3D design-based sampling principles (stereology) to estimate changes in acetabular bone density after periacetabular osteotomy.
          
    Feature modeling on subdivision surfaces remains a challenging task for interactive 3D design.
          
    更多          


    Progress in the development of quasi-three-dimensional and full three-Dimensional numerical solutions for steady subsonic rotational flow through turbomachines is presented. An itreative calculation between the flow on a mean hub-to-tip S2 stream surface and a number of blade-to-blade S1 stream surfaces gives the quasi-three-dimensional solution, which is very easily extended to give full three-dimensional solution by merely calculating a few more S2 surface flows and relaxing the restriction that S1 surfaces...

    Progress in the development of quasi-three-dimensional and full three-Dimensional numerical solutions for steady subsonic rotational flow through turbomachines is presented. An itreative calculation between the flow on a mean hub-to-tip S2 stream surface and a number of blade-to-blade S1 stream surfaces gives the quasi-three-dimensional solution, which is very easily extended to give full three-dimensional solution by merely calculating a few more S2 surface flows and relaxing the restriction that S1 surfaces are surfaces of revolution. A new S2-S1 iteration scheme has been developed and employed in the present code. An automatic computing system is used, which first computes the quasi-three-dimensional flow for blade design and then computes the full three dimensional flow for the blade row just designed.The results obtained by applying this computing system to the design and determination of full three-dimensional flow field of a two-stage axial compressor and a high subsonic compressor stator are obtained and shows the difference in the flow field between the quasi-three-dimensional and full three-dimensional solutions.

    本文介绍了一个将叶轮机械的准三元设计和全三元流场分析解联结起来的计算方法和程序系统,是文献[13,14]所介绍的准三元和全三元计算工作的继续和发展.在本方法中首先使用一个中心S_2流面与一组S_1迴转面迭代进行叶片的准三元设计,接着使用两类普遍S_1,S_2流面交替迭代,对设计出来的叶片进行全三元流场分析解.该计算方法体现了使用中心S_2流面的优点,即很方便地从准三元扩展到全三元计算,程序结构简单,机器内存不需显著增加,可以得到三维空间沿流面直观的流动图形.算例表明该程序在准三元及全三元计算中的收敛性是很好的,在设计实践中可以得到有效的使用。

    A diagonal-flow fan with large inclined stream surface and axial velocity variation has been designed and manufactured with the method developed by the authors. Experimental results and practical operation show that the design method is feasible.

    本文利用斜流叶轮准三元设计法,设计并研制出了具有大倾斜流面和轴向速度变化的后置导叶型斜流通风机.性能试验与应用结果表明该设计法可靠.

    A quasi-three-dimensional design method suitable for industrial purposes in making the centrifugal fan is presented. At the meridional stream surface the concept of an infinite number of blades is assumed and the axisymmetricl flow problem solved. At the rotational stream surface the blade profile or the distribution of blade angle with radius is determined by selecting the load distribution desired or by giving the distribution of the blade suction surface velocity.

    本文提出了一种工程上实用的离心风机叶轮的准三元设计法。子午面采用无限多叶片概念,从而可在该面解轴对称问题。回转面的叶片成型,是由选择所希望的负荷分布或给定叶片吸力面速度分布来决定叶片角随半径的分布。

     
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