助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   algorithm 在 航空航天科学与工程 分类中 的翻译结果: 查询用时:0.151秒
图标索引 在分类学科中查询
所有学科
航空航天科学与工程
计算机软件及计算机应用
数学
电信技术
自动化技术
互联网技术
电力工业
无线电电子学
自然地理学和测绘学
更多类别查询

图标索引 历史查询
 

algorithm
    很抱歉,暂未找到该词条在当前类别下的译词。您可以查看在所有学科下的译词。
相关语句
  “algorithm”译为未确定词的双语例句
    A COMPREHENSIVE ANALYSIS ALGORITHM FOR ABLATION, TEMPERATUE FIELDS AND THERMAL STRESSES OF THE CARBON-BASENOSETIPS
    碳基材料端头帽的烧蚀、温度场和热应力的综合分析算法
短句来源
    ALGORITHM OF SUITABLE SPEED PROFILE IN THE TERMINAL AREA
    终端区域理想速度剖面的生成
短句来源
    Study on Navigation-used Special Processor Based on CORDIC Algorithm
    导航专用处理器的研究
短句来源
    Difference quotient algorithm for finding the feasible set of (0 ,1)programming of optimum design of structures with discrete variables
    寻求离散变量结构优化设计0-1规划可行集的差商向量法
短句来源
    Vortex Simulation of Axisymmetrical Flows in Cylindrical Geometries. Part I: Numerical Algorithm
    Vortex Simulation of Axisymmetrical Flows in Cylindrical Geometries.PartI:Numerical Algorithm
短句来源
更多       
查询“algorithm”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  algorithm
This paper gives an algorithm for computing invariant rings of reductive groups in arbitrary characteristic.
      
The algorithm presented here computes a geometric characteristic of this action in the case where G is connected and reductive, and $\rho$ is a morphism of algebraic groups: The algorithm takes as input the
      
We present an algorithm for computing the invariant field k(X)G.
      
More precisely, we give an algorithm for computing a nonempty open subset of X with a geometric quotient.
      
We show that the rate of convergence for this reconstruction algorithm is geometric and computable in advance.
      
更多          


HAJIF-II is a program system developed by Chinese Aeronautical Establishment(CAE). It is able to accomplish the calculation of the modal characteristics of aircraft structures as well as the flutter and gust response analysis with the active control system taken into account. The structural model may be composed of 99 substructures each with 7000 degrees of freedom. 300 panels may be used in the calculation of nonsteady aerodynamic forces and 50 modes in the flutter and gust response analysis. The data generation...

HAJIF-II is a program system developed by Chinese Aeronautical Establishment(CAE). It is able to accomplish the calculation of the modal characteristics of aircraft structures as well as the flutter and gust response analysis with the active control system taken into account. The structural model may be composed of 99 substructures each with 7000 degrees of freedom. 300 panels may be used in the calculation of nonsteady aerodynamic forces and 50 modes in the flutter and gust response analysis. The data generation system permits the flexible use of numerical data and topological description. 31 prescribed computational flows are supplied and an user can also organize his own computational flows as he needs. A structure can be discretized into finite elements or simulated by single spar. For the management of the stiffness and mass matrix a modified hypermatrix method is employed to omit all of inactive zero elements more effectively. A new algorithm, called a revised simultaneous iteration procedure, has been developed to solve the real eigenvalue problem and is more effective than the current agorithm. Modal synthesis technique with both free and fixed interfaces is adopted. Besides, two new methods of synthesis have been developed from the concept of multilevel substructures. Nonsteady aerodynamic forces are calculated by means of subsonic doublet lattice method for multiwings and aerodynamic forces in Laplace plane can be approximated with a curve-fitting procedure based on sinusoidal data. Flutter equations are solved by V-g and p-k methods and the continuous atmosphere turbulance are used in the gust response analysis. The system consists of a sequence of functional modules so it can be modified and extended easily. An advanced file management system has also been developed. There are approximately 26000 FORTRAN IV statements in the system. The HAJIF-II was applied to analyzing a number of typical aircraft structures and gave good results.

HAJIF-Ⅱ是中国航空研究院领导研制的航空结构动力分析系统。它可以进行结构的固有动力特性计算,以及带主动控制系统的飞机颤振计算和突风响应计算。它具有31条固定流程、2600条FORTRAN语句。允许使用99个原级子结构,每个子结构的自由度数可达7000。颤振计算和突风响应计算中,可以使用50个形态。非定常空气动力计算的分块数可达300个。在刚度矩阵和质量矩阵的管理上,采用超元矩阵方法做“宏观处理”,并用有效列方法做“微观处理”,发展了新的同时迭代算法,以提高实特征值计算的效率。设计了比较完整的形态综合法计算程序,除固定界面法和自由界面法之外,还发展了分级综合和逐步综合的新方法。非定常空气动力计算方面,引入了用曲线拟合方法把谐振荡空气动力转入拉氏平面的技术。用本系统计算了一批典型的结构,取得了良好结果。

Numerical methods for treating body boundary conditions in transonic flow through cascades are discussed in this paper. The purpose is to seek for a better algorithm for calculating boundary flow parameters which matches the internal difference scheme, so as to increase the accuracy of computation.First, characteristic relations on body boundaries arc derived. Second, five algorithms for boundary parameters are described briefly. Numerical tests on these algorithms have been made.The numerical...

Numerical methods for treating body boundary conditions in transonic flow through cascades are discussed in this paper. The purpose is to seek for a better algorithm for calculating boundary flow parameters which matches the internal difference scheme, so as to increase the accuracy of computation.First, characteristic relations on body boundaries arc derived. Second, five algorithms for boundary parameters are described briefly. Numerical tests on these algorithms have been made.The numerical experiments show that the computational result of Denton's revised algorithm extrapolating parabolically along the y axis is the best of the five; this algorithm matches our internal difference scheme. Also, it can express more correctly the physical characteristics of transonic flow field with shock in plane cascades.

本文讨论了跨音速叶栅物面边界的数值处理方法,目的是寻求与我们所用内点格式相匹配的边界上流动参数的算法,以提高计算精度。本文首先推导了适合于物面边界计算的特征关系式,其次总结了五种边界处理方法,进行了数值试验。计算结果表明,配合我们的内点计算格式,以y向抛物外推的Denton修正法计算效果较好,能够较精确地反映跨音速叶栅带激波流场的物理特点。

In this paper a method is presented, in which the rotation angle from sun-earth midsean λ_(se) in addition to the earth angle θ_e and sun angle θ_s are simultaneously used for determinating spinstabilized geostationary satellite attitude. This method gives uniquely one unambiguous attitude. Solution, simplifies the algorithm, eliminates regions of high correlation and low measurement density occuring when using two attitude measurements, and provides geometric condition where singularity occures only if...

In this paper a method is presented, in which the rotation angle from sun-earth midsean λ_(se) in addition to the earth angle θ_e and sun angle θ_s are simultaneously used for determinating spinstabilized geostationary satellite attitude. This method gives uniquely one unambiguous attitude. Solution, simplifies the algorithm, eliminates regions of high correlation and low measurement density occuring when using two attitude measurements, and provides geometric condition where singularity occures only if the earth and sun vectors are co-linear. By this method, the angle λ_(se) is conveniently incorporated into the kalman or least square filter. Digital simulation showed that better accuracy of attitude determination and filter estimation can be obtained bv this method.

本文提出一种同时利用地球角θ_c、太阳角θ_s和星日-星地转动角λ_(sc)三种姿态测量信息,确定卫星姿态的方法。该法算式简易,可唯一地确定卫星姿态。消除了采用两种姿态测量信息的姿态确定方法所引起的高相关和低测量密度的不良区域。本文方法仅有太阳矢量和地球矢量共线的几何限制,能方便地把λ_(sc)引入滤波器。通过数字仿真,表明此法可得到良好的姿态确定精度及滤波估计。

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关algorithm的内容
在知识搜索中查有关algorithm的内容
在数字搜索中查有关algorithm的内容
在概念知识元中查有关algorithm的内容
在学术趋势中查有关algorithm的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社