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 形函数矩阵
 form function matrix
 Start on forming a form function matrix with the motion frequency, this paper creates the finite element of the linkage structure dynamics problem. 本文从构造含有运动频率ω的形函数矩阵入手,建立了杆系结构动力问题的有限元法。 短句来源
 shape function matrix
 The each order plane rigid frame element dynamic shape function matrix and each order element characteristics, which is composed of each order dynamic constraint mode function, are adopted in this paper. with them, the each order dynamic characteristics and each order dynamic displacement components and dynamic stress components are calculated out very accurately for motor—cycle subjected to all kinds of loads. 本文采用了各阶动态约束模态函数而组成的平面刚架结构有限单元的各阶动态形函数矩阵及各阶单元特性表达式,利用它们可以准确地计算出摩托车的各阶动特性,进而可求出在各种载荷下的各阶动位移与动应力分量,最后将各阶动应力分量迭加,即可准确地求出动位移及动应力响应。 短句来源
 shape function matrixes
 The concept of dynamic constraint mode functions for elements of a frame is introduced and it is used to form the dynamic shape function matrixes of each order for the finite elements of a frame. 文中阐述了框架结构有限单元各阶动约束模态函数的概念,并用它组成结构有限单元各阶动态形函数矩阵。 短句来源 The shape function matrixes and linear strain of the 16 degree of freedom beam element are analyzed, and the linear elastic element stiffness matrix, geometrical stiffness matrix and the nodal equivalent load matrix are deduced. 在16自由度梁单元形函数矩阵和应变分析的基础上，推导了16自由度梁单元的线弹性刚度矩阵、线弹性几何刚度矩阵和单元结点等效载荷列阵。 短句来源
 “形函数矩阵”译为未确定词的双语例句
 The singularities (eigenvalues) and eigenvectors are obtained by solving the non-conforming FE characteristic equations, the angular variations of displacement are obtained by the multiplication of interpolation functions matrix and eigenvectors, and the angular variations of stresses are obtained by the multiplication of stress matrices and eigenvectors. 奇性应力指数(特征值)和特征向量是通过求解非协调元特征方程得到的,位移角分布函数是形函数矩阵和特征向量的乘积,应力角分布函数是应力矩阵和特征向量的乘积。 短句来源 This paper studies the dynamic stress in beam structure subject tononvariant axial force by dynamic finite element method, and presents theconcept bf dynamic constraint mode function for each order of the beamelement loaded by axial force. With it the dynamic shape function matricesof each order of the strutucral finite element are formed. 本文运用动态有限元法研究具有不变轴向力的梁式结构,提出了在轴向力作用下梁单元的各阶动约束模态函数的概念,并用其组成结构有限单元的各阶动态形函数矩阵。 短句来源 The finite dynamic element method(DEM) is quite efficient in improving the accuracy of the dynamic analysis of structures. In order to expand the application field of the DEM, based on the studies by Przemieniecki and Gupta et al, a two-dimensional quadrangular finite dynamic element is established in this paper, and its dynamic shape functions, stiffness and mass matrices developed herein can be used in practical analyses. 在Przemieniecki和Gupta等人的研究基础上,建立了动态有限元的一种新形式——二维动态四边形单元,推导出其动态形函数矩阵、刚度和质量矩阵。 本文结果可供实际分析应用。 短句来源 The shape function matrices and the element stiffness matrices of the pile elements in layered media are derived by adopting the Beam - On - Dynamic - Winkler - Foundation model. 采用动力文克尔地基梁模型，推导了层状介质中桩单元的形函数矩阵和单元刚度矩阵。 短句来源

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 shape function matrix
 Ni is the shape function matrix associated with node i, j is equal to 4 for a 4-noded element, and 8 for an 8-noded element.
 The each order plane rigid frame element dynamic shape function matrix and each order element characteristics, which is composed of each order dynamic constraint mode function, are adopted in this paper. with them, the each order dynamic characteristics and each order dynamic displacement components and dynamic stress components are calculated out very accurately for motor—cycle subjected to all kinds of loads. At last, the responses of dynamic displacements and dynamic stresses are obtained with compositing... The each order plane rigid frame element dynamic shape function matrix and each order element characteristics, which is composed of each order dynamic constraint mode function, are adopted in this paper. with them, the each order dynamic characteristics and each order dynamic displacement components and dynamic stress components are calculated out very accurately for motor—cycle subjected to all kinds of loads. At last, the responses of dynamic displacements and dynamic stresses are obtained with compositing method. 本文采用了各阶动态约束模态函数而组成的平面刚架结构有限单元的各阶动态形函数矩阵及各阶单元特性表达式,利用它们可以准确地计算出摩托车的各阶动特性,进而可求出在各种载荷下的各阶动位移与动应力分量,最后将各阶动应力分量迭加,即可准确地求出动位移及动应力响应。无疑这对摩托车的优化设计是十分有意义的。 This paper studies the dynamic stress in beam structure subject tononvariant axial force by dynamic finite element method, and presents theconcept bf dynamic constraint mode function for each order of the beamelement loaded by axial force.With it the dynamic shape function matricesof each order of the strutucral finite element are formed. The naturalcharacteristics of the structure are calculated with the recurrence method. Bymeans of the dynamic shape function matrices and the mode displacementcomponent of... This paper studies the dynamic stress in beam structure subject tononvariant axial force by dynamic finite element method, and presents theconcept bf dynamic constraint mode function for each order of the beamelement loaded by axial force.With it the dynamic shape function matricesof each order of the strutucral finite element are formed. The naturalcharacteristics of the structure are calculated with the recurrence method. Bymeans of the dynamic shape function matrices and the mode displacementcomponent of each order of the element, the structural mode stresscomponent of each order is determined,and superposing them, the approximatevalue of the structure's dynamic stress can be calculated. 本文运用动态有限元法研究具有不变轴向力的梁式结构,提出了在轴向力作用下梁单元的各阶动约束模态函数的概念,并用其组成结构有限单元的各阶动态形函数矩阵。利用递推方法计算结构的各阶固有特性。文中还阐述了:利用单元的各阶动态形函数和各阶模态位移分量求出结构的各阶模态应力分量,再迭加各阶模态应力分量即可求出结构动应力近似值的方法。 Studying the vibration analysis of structures by the finite dynamic element method (DEM) which applies the dynamic shape-function involuing the natural frequency can make a significant improvement in accuracy. The theoretical deduction with the impllcit formulation presented in this paper is used to estabilish the 2-dimensional quadranglar dynamic element and the 3-dimensional hexahedral dynamic element. And two examples are given to illustrate the reasonableness of the structural dynamic analysis by the DEM... Studying the vibration analysis of structures by the finite dynamic element method (DEM) which applies the dynamic shape-function involuing the natural frequency can make a significant improvement in accuracy. The theoretical deduction with the impllcit formulation presented in this paper is used to estabilish the 2-dimensional quadranglar dynamic element and the 3-dimensional hexahedral dynamic element. And two examples are given to illustrate the reasonableness of the structural dynamic analysis by the DEM and the correctness of the theoretics herein. 运用含有固有频率的动态形函数矩阵的动态有限单元法进行结构动力分析,可改善其精度,提出了一种隐含形式的公式推导方法,建立和推导了二维动态任意四边形单元和三维动态六面体单元,通过算例分析显示了动态有限单元法结构动力分析的合理性和所做理论工作的正确性。 << 更多相关文摘
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