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结构优选
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  structure optimization
     Application of FEA to tire structure optimization Ⅱ Optimization of belt width
     轮胎结构有限元分析应用于轮胎结构优选Ⅱ.带束层宽度的优选
短句来源
     Modal analysis and structure optimization for precision machine tool bed
     精密机床床身的模态分析与结构优选
短句来源
     Thenits mechanics model simplification method for thestructural analysis by finite element method was rec-ommended. Its finite eIement analysis and structureoptimization were made for open-press fuselage withseveral practical examples. A remarkable effect onreducing its weight and increasing its strength andrigidity was achieved.
     分析了开式压力机床身的结构特点,然后介绍了应用有限元法对开式压力机床身进行结构分析时的力学模型简化方法,并结合若干工程实例,对开式压力机床具进行了有限元分析与结构优选,取得了既减轻床具重量、又提高强度和刚度的显著效果,为结构的合理设计与改进提供了可靠的理论依据。
短句来源
     FINITE ELEMENT ANALYSIS AND STRUCTURE OPTIMIZATION FOR OPEN-PRESS FUSELAGE
     开式压力机床身有限元分析与结构优选
短句来源
     Finite element calculation and analysis of strength and rigidity were made for open-press body of 1000kN and 630kN of JL21 series. And structure optimization was made to the body. A remarkable effect on reducing weight of body and increasing strength and rigidity was achieved.
     对 J L21 系列 1000k N 和 630k N 开式压力机机身强度和刚度进行了有限元计算与分析,并进行了机身结构优选,取得了既减轻机身重量又提高强度和刚度的显著效果。
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  “结构优选”译为未确定词的双语例句
     Optimization CAD of the preform structure of 3D woven composites
     三维机织复合材料预制件结构优选CAD
短句来源
     Optimization of the stope sill structure in mining the inclined thin gold vein
     倾斜薄金矿脉采场底部结构优选
短句来源
     The genetic algorithm is used to optimize the structure of the radial basis probabilistic neural networks (RBPNN), including selecting the hidden center vectors of the first hidden layer and determining the corresponding controlling parameters of the kernel function of RBPNN.
     运用遗传算法 (GA)来优化设计径向基概率神经网络 (RBPNN)结构 ,优选了隐中心矢量和优化求取对应的核函数控制参数 .
短句来源
     Moreover, the applicability of the model to the screening of tire structures is discussed.
     此外 ,还探讨了这种轮胎有限元分析模型在轮胎结构优选中的应用 .
短句来源
     The specific energy of Ni MH battery was improved by modifying the raw materials and the proportion of positive/negative and optimizing the structure designs of single cell and battery pack.
     通过优化设计单体及组合电池结构 ,优选正负极原材料及配方 ,提高了电池质量比能量 ,使之达到 63Wh/kg ;
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  相似匹配句对
     Compared the actuality of the structure of th
     *; 结构;
短句来源
     Using AFS algebra and AFS structure, any human ordinary fuzzy concept can be represented.
     结构
短句来源
     On Preference of Meanings of Ambiguity Structure
     歧义结构的意义优选
短句来源
     (2) Selectingthe better industrial structure and scale of planting industry.
     (2)优选种植业结构及规模;
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  structure optimization
The structure optimization by the empirical (MM+), semiempirical (PM3), and ab initio (HF/6-21) methods showed that these molecules are energetically stable.
      
The results of atomic-structure optimization and calculation of the electronic structure of the Si20, Si20-, NaSi20, and KSi20 clusters are reported.
      
The spectra were interpreted with the aid of normal coordinate analysis following full structure optimization and force field calculations based on density functional theory (DFT) and Hartree-Fock (HF) at 6-31G* and 6-311++G** basis sets.
      
The work provides useful reference for structure optimization selection of the driving diaphragm of micro valveless pump.
      
When the structure optimization of the side load spring is performed using FEA software ANSYS, its vertical and lateral elastic characteristics, supported by test data, are analyzed.
      
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Based on cur previcus research work, it is put forward and proved in this article that the poor dynamic quality of the front wheel system connected with all jeep motion should be an important reason of abnorma wear of front jeep wheel. To malta this clear, the authors, with WH-211 jeep as an example, introduce the mathematical model of the front wheell system with steering whee imput, computer simulation protect and calculation results. Besides, they also present the optimum simulating computational rest lts...

Based on cur previcus research work, it is put forward and proved in this article that the poor dynamic quality of the front wheel system connected with all jeep motion should be an important reason of abnorma wear of front jeep wheel. To malta this clear, the authors, with WH-211 jeep as an example, introduce the mathematical model of the front wheell system with steering whee imput, computer simulation protect and calculation results. Besides, they also present the optimum simulating computational rest lts of its constructional parameters.

本文在以前研究工作的基础上,对吉普车前轮异常磨损提出并论证了如下的见解:与整车运动相关连的前轮系统动态特性不良是吉普车前轮产生异常磨损的重要原因之一。本文以WH—211吉普车为例,介绍了以方向盘输入的前轮系统数学模型,计算机仿真研究方案及计算结果。同时,还介绍了WH—211吉普车结构优选参数的仿真计算结果。

The rotating mirror cameras can be divided into two types according to their picture forms. One type is streak camera, another is framing camera. The best way to obtain more information is to performing simultaneous streak and framing in one camera. The famous camera abroad is Model 330A made by USA. Because the tilted light path.Bery Ilium rotating mirror and Helium technology were applied in that camera, it is complex and has a lot of difficulties to be made by our country. In this paper, a new method of Si...

The rotating mirror cameras can be divided into two types according to their picture forms. One type is streak camera, another is framing camera. The best way to obtain more information is to performing simultaneous streak and framing in one camera. The famous camera abroad is Model 330A made by USA. Because the tilted light path.Bery Ilium rotating mirror and Helium technology were applied in that camera, it is complex and has a lot of difficulties to be made by our country. In this paper, a new method of Si multaneous streak and framing is described:Plane light path in two layers was used to performing the streak and framing. Some kinds of available waiting forms were studied. Optimization of the structure was made in order to decrease the dimension and inlet angle, increase the light power and get the high quality of image. Compared with the system of tilted light path, its characteristics were studied. The design parameter of the optical system were given.In the test, high strength Aluminium hexagon mirror was applied. Its strength and defo-ormation were calculated accurately by using theory of elasticity mechanics. We found the deformation of Aluminium mirror is only 1.45 times greater than that of Beryllium mirror. Its linear velocity can reach 816m/s. Strength and deformation tests were taken. The results showed that its characteristics conform to the theory and 'meet the needs.The advanced vacuum technology was used. Compared with filling Helium, the cost price is sharply decreased.

根据胶片图象形式的不同,转镜相机可分为两类,即扫描摄影机和分幅摄影机。由于它们各有利弊,因此,最好的方法是能用一台摄影机,同时得到现象的扫描和分幅图象。国际上有美国的330A型相机,但它采用空间光路,三面体铍转镜及整体充氦技术,这就给技术、工艺带来许多困难。本文根据我国的具体情况,提出了一种新颖方案来同时实现分幅、扫描,它包括以下内容: 采用两层共面光路可实现同时分幅扫描。研究了几种可能的等待形式,以尽量减少整体尺寸,入口角,增大光力,提高象质。同时,进行了结构优选,对空间光路的实现方式作了比较研究,给出了光学系统的设计参数。 实验中,首先采用了高强度铝合金六面体转镜。用弹性力学理论,对六面体铝转镜的强度及变形进行了精确计算,证明其变形量仅为同样回转半径三面体铍转镜的1.45倍,边缘线速度达816m/s。此外,对铝转镜进行了强度及变形实验,实验结果表明:其性能与理论相符,满足役计要求。 采用了国内较成熟的真空球罩技术,与充氦气相比,大大降低了成本。

This paper presents a basic idea and frame for system of trajectory design andcontrol in drilling directional and horizontal wells. Design of wellbore path,feature analysisof bottom-hole Assembly(BHA),management of BHA’s data base,optimization of BHA’sstructure,simulation of drilling are combined together by means of Chinese graphical userinterface.The system uses menus to choose functions and dialogue frame to input data. It isconvenient to operate. BHA’s data base concept is proposed.It can represent the...

This paper presents a basic idea and frame for system of trajectory design andcontrol in drilling directional and horizontal wells. Design of wellbore path,feature analysisof bottom-hole Assembly(BHA),management of BHA’s data base,optimization of BHA’sstructure,simulation of drilling are combined together by means of Chinese graphical userinterface.The system uses menus to choose functions and dialogue frame to input data. It isconvenient to operate. BHA’s data base concept is proposed.It can represent the latestdevelopment of applying computer technology to drilling trajectory control.

提出了汉化井眼轨迹控制专家系统的基本思路与结构的基本框架,其特点是利用计算机汉字图形用户界面技术,把井眼轨道设计、下部钻具组合(BHA)特性分析、BHA数据库管理、BHA结构优选设计、钻井过程的计算机模拟及钻井数据处理等融为一体。菜单选择、对话框式数据输入,操作方便。提出了BHA数据库的概念。它是井眼轨迹控制技术软件向智能化发展的基础。

 
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