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用JAVA 写的数据结构 PILE 的算法,这种算法是法国大学老师算PILE 的一种方法.-using Java to write the data structure of the stiffness This algorithm is counting France braced University teachers a way.
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计算一个平面桁架结构的总体刚度矩阵,最后以图形形式显示出桁架结构-Calculation of a plane truss structure' s overall stiffness matrix, the last show in graphical form of truss structure
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Input data is the MS Excel file, where the table of nodes, table of elements, nodal external loads vector and boundary conditions are stored.
After running the mabs2d.m file on the Command Window, the program calculates the stiffness matrix in lo
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本子程序包含5个子程序,其主要功能是:
(1) 子程序CXCY(E,L,IE,JE)的功能
用于计算各单元的杆件的长度及在结构坐标系中的倾角α的三角函数cosα、sinα。
(2) 子程序ELEA(E,L,IE,JE,A)的功能
用于计算结构坐标系下各单元刚度矩阵中的刚度系数。
(3) 子程序TOTAL(E,LNODE,KE,KZ)的功能
用于形成半带宽的结构原始刚度矩阵。
(4) 子程序FIFX(NP,FXI,FXJ,FYI,FYJ,MMI,MMJ,WL,IE
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近年来,随着各国大地震的接连发生,对人类的生命财产造成了巨大的损失,高层建筑的隔震抗震引起了广泛关注。因此,在实际结构中对与建筑隔震性能的研究具有重要的意义。本文提出依次采用扩展卡尔曼识别结构响应和最小二乘识别未知激励的方法,对隔震层的无模型非线性特性进行识别。首先是在小地震线性情况下识别出结构参数刚度和阻尼,然后在大地震下对隔震特性进行识别。算例表明,该方法对已知地震激励下的隔震结构,其非线性特性的识别具有较高的精度。这样可通过结构迟滞力的变化,对结构的隔震性能进行有效的识别。-Recentl
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基于matlab的有限元数值计算,对轴对称结构使用三角形环单元,有两种刚度矩阵计算方法-Based on the matlab finite element numerical calculation, axisymmetric structure of using a triangle ring unit, have two kinds of stiffness matrix calculation method
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matlab程序代码,三维杆单元有限元结构刚度和质量矩阵的生成-Matlab program code, 3 d finite element structure stiffness and stem the generation of mass matrix
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此程序用于实现结构的有限元计算:将patran中的模型的bdf文件中的单元信息和节点信息保存成txt文档,在matlab中调用,就可实现刚度矩阵、质量矩阵的组装,进而有限元计算-This procedure is used to achieve the structure of the finite element method: bdf file of the model in patran unit information and node information is saved into
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子空间迭代法,利用结构的刚度和质量矩阵计算结构的自振特性。-Subspace iteration method, the use of structural stiffness and mass matrix calculation of the vibration characteristics of the structure.
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有限元薄板结构的分析 刚度方程 matlab程序-Analysis of finite element stiffness equation matlab program sheet structure
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此程序用来计算结构的总刚度矩阵,求解结点位移,各单元内三个节点的应力应变。-This program is used to calculate the total stiffness matrix structure, solving node displacement, stress and strain within each cell of the three nodes.
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用于求解平面结构问题,程序采用二维等带宽存储整体刚度矩阵,乘大数法引入约束,等带宽高斯消去法求解位移。-Planar structure for solving the problem, the program uses a two-dimensional, such as bandwidth storage overall stiffness matrix multiplication of large numbers Law introduces constraints, such as G
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可计算梁结构固有频率、振型、特征值对单元刚度的敏感度-It can calculate the beam structure s natural frequency, mode shapes, eigenvalues sensitivity of element s stiffness
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该程序用以实现综合结构的有限元计算.质量和刚度矩阵采用NASTRAN计算-this program can be used to realize FEA of synthsis structure. the mass and stiffness matrice is obtained using nastran.
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包括有限元的基本方法和步骤、结构的动力特性和响应分析、单元的质量矩阵和刚度矩阵的建立及典型结构的动力学分析、工程应用和数值仿真等内容。-Including the basic methods and steps of finite element, structural dynamic characteristic and response analysis, element stiffness matrix and mass matrix of typical structure and dy
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平面刚架梁单元,刚度矩阵。由单元刚度矩阵得到整体刚度举证。结构节点位移矢量。-Plane rigid frame beam element stiffness matrix. The element stiffness matrix to get the overall stiffness. Structure of node displacement vector.
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利用Fortran编写平面桁架结构的单元刚度矩阵,合成总体刚度矩阵求解(The element stiffness matrix of the plane truss structure is written by Fortran, and the synthesis of the general stiffness matrix is solved)
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多自由度有阻尼系统的MATLAB求解代码,输入刚度,阻尼,平衡方程,自动计算结构阻尼频率和振型。(The MATLAB solution code of the damping system with multiple degrees of freedom is used to enter the stiffness, damping and equilibrium equations, and the damping frequency and vibration mode of the st
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用matlab软件求解复合材料结构设计中层合板刚度系数计算程序(A program for calculating stiffness coefficient of composite laminates based on composite structure design)
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求解含maxwell型(刚度与阻尼串联型)阻尼器的单自由度结构的动力响应。(The dynamic response of a single-degree-of-freedom structure with Maxwell dampers (stiffness and damping series) is solved.)
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