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高阶矩阵
相关语句
  high-order matrices
    This method is easy to be completed on compu- ter, and applicable to solve the inverse of high-order matrices.
    方法简单,运算过程规律,和其它求逆方法比较还具有精度高的特点,适合于高阶矩阵之逆,更便于上机计算。
短句来源
    This paper introduces a recurrence formula for computing n- order inverse matrix derived from the Cayley-Hamilton theorem and the polynomial theory. In the whole computing process of inverse matrix, it is only once required for every element of matrix to do the division operation. This method is easier, accurate, and applicable to solve the inverse of high-order matrices.
    本文由凯莱-哈米尔顿定理和多项式理论综合导出求n阶矩阵A之逆的递推公式,整个求逆过程中对每个元素只用了一次除法运算,因此计算简单,精度高,适合于求高阶矩阵之逆.
短句来源
    With a relatively high accuracy,the solution avoidsthe inverse operation of high-order matrices.
    该解法避免了对高阶矩阵的求逆运算,并具有较高的精度.
短句来源
    A theorem to determine the generalized positive definiteness of high-order matrices by low-order matrices is given.
    本文给出了用低阶矩阵来判定高阶矩阵的广义对称正定的判定定理。
短句来源
  “高阶矩阵”译为未确定词的双语例句
    This paper introduces the reduced order theory of characteristic polynomial and its application in the higher order matrix aspects are presented.
    研究特征多项式的降阶定理以及它在高阶矩阵方面的应用。
短句来源
    with the help of this method, the optimal feedback gain matrix K can be directly obtained.
    本文提出一种用随机自寻优方法(random self-optimalizing简称RSO)直接寻求满足Riccati方程的反馈增益阵K,从而不需进行高阶矩阵的求逆运算。
短句来源
    The assumed-stress hybrid functionals with incremental forms are modified by using the experience of field functional separation for reference, so the inversing of a high matrix is simple to handle and the computing efficiency and the convergent exactitude for the non-linear finite element analysis of variables are increased.
    该法采用场变量分解,文[1]对增量形式的杂交应力元能量泛函进行修正,简化了高阶矩阵的求逆运算,从而提高了多变量非线性有限元分析的计算效率和收敛精度。
短句来源
    In this paper, a criterion is presented for the determination of generalized symmetric positive definite matrices of high orders be the low order ones, the necessary and sufficient condition for thy existence of solutions of the inverse problem of matrix equation AX = B and the general form of the solutions are also given.
    本文给出了用低阶矩阵的广义对称正定性来判定高阶矩阵的广义对称正定性的判定定理,并且给出了矩阵方程AX=B的反问题在广义对称正定矩阵类中解存在的充要条件及解的一般形式。
短句来源
    This paper discusscd inverse problem on system of equation"A■=b",a necessary and sufficient condition on existence of solutionfor A■=b in complex poxsitivedefinite matrix is given,a general formof solution for A■=b in complex positivedefinite matrix is obtained onthe other hand,we report a method in which complex positivedefinite ofmatrix is judged by low-order matrix,theorem lin refence[1]has beengeneralized.
    得到了A■=b在复正定矩阵类中有解的充要条件,给出了A■=b在复正定类中解的一般形式. 并同时得到用低阶矩阵来判定高阶矩阵复正定性的方法,推广了郭忠文中的定理1。
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The digraph theory is applied to analyze the structure of flexible space vehicles. A method is given for selecting the opltimal structure of state vector, so that the high-order matrix of system is reduced to block triangular form. It is convenient to analyze the problems of system decoupling, modal coordinate truncation, controllability and ober-vability.

本文应用有向图理论,分析挠性空间飞行器结构,给出选择状态向量的最佳结构方法,把系统的高阶矩阵简化成块三角型矩阵,从而便于分析系统的解耦、模态座标的截断和能控能观等问题。

The solution of algebraic Riccati equations is a key question in the optimal control calculations. This paper presents a practical method for solving algebraic Rieeati equations-random self-optimalizing(RSO). with the help of this method, the optimal feedback gain matrix K can be directly obtained. when this method is applied to the optimal control of the excitation system, the results of calculating K are also satisfactory.

代数Riccati方程的求解,是最优控制中的核心问题。前人提出的很多方法,都由于随着系统阶次的递增而使求解Riccati方程变得越来越困难,对于某些高阶系统,Riccati方程的求解甚至是不可能的。本文提出一种用随机自寻优方法(random self-optimalizing简称RSO)直接寻求满足Riccati方程的反馈增益阵K,从而不需进行高阶矩阵的求逆运算。本文在导出发电机励磁系统状态方程的基础上,将RSO法用于寻求最优控制律,计算结果令人满意。

This paper presents two new finite element methods for the elastic-plastic analysis of structures, hybrid/mixed non-conforming finite element methods. The assumed-stress hybrid functionals with incremental forms are modified by using the experience of field functional separation for reference, so the inversing of a high matrix is simple to handle and the computing efficiency and the convergent exactitude for the non-linear finite element analysis of variables are increased.This paper also presents a hybrid/mixed...

This paper presents two new finite element methods for the elastic-plastic analysis of structures, hybrid/mixed non-conforming finite element methods. The assumed-stress hybrid functionals with incremental forms are modified by using the experience of field functional separation for reference, so the inversing of a high matrix is simple to handle and the computing efficiency and the convergent exactitude for the non-linear finite element analysis of variables are increased.This paper also presents a hybrid/mixed non-conforming quadrilateral for the elastic-plastic plane problem. At last, numerical results are given by comparison 'of experiment results and Rcfs [3]. The results show that the methods in the paper are very efficient in the elastic-plastic analysis.

本文提出两种结构弹塑性分析的有限元方法——杂交/混合非协调元法。该法采用场变量分解,文[1]对增量形式的杂交应力元能量泛函进行修正,简化了高阶矩阵的求逆运算,从而提高了多变量非线性有限元分析的计算效率和收敛精度。文中按文[2]给出的第二种能量泛函的修正形式建立了弹塑性平面问题中的杂交/混合非协调四边形单元。最后给出算例,并与实验解及文[3]解进行比较。表明该方法分解弹塑性问题是十分有效的。

 
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