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    • 2. 发明授权
    • Method, apparatus and computer program product for forming data to be analyzed by finite element method and calculation method based on finite element method
    • 用有限元分析法形成数据的方法,设备和计算机程序产品,以及基于有限元法的计算方法
    • US06618694B1
    • 2003-09-09
    • US09084108
    • 1998-05-26
    • Akinobu ShibuyaKouji MatsuiHidehito Matsuyama
    • Akinobu ShibuyaKouji MatsuiHidehito Matsuyama
    • G06F1750
    • G06T17/20G06F17/5018G06F2217/80
    • A user uses part data forming means 101 and module data forming means 102 to input the actual dimension, physical constants and mesh dividing number for fundamental shapes which are registered in advance, thereby forming parts, and then indicates the relative position between the parts to form the entire shape of an assembly of plural parts without paying attention to coincidence or non-coincidence of nodal points. Data converting means 104 divides the shape of each part thus assembled according to the indicated mesh divisional number to generate element data and nodal point data. Further, it generates a constraint equation for connecting nodal points which are non-connected between neighboring parts, and forms an analysis model 401. A finite element method analyzer 105 uses approximate calculation means 106 to approximate a non-connected nodal point displacement from a nodal point displacement of neighboring structural elements on the basis of the constraint equation.
    • 用户使用部件数据形成装置101和模块数据形成装置102输入预先登记的基本形状的实际尺寸,物理常数和网格划分数,从而形成零件,然后指示部件之间的相对位置,以形成 多个部分的组合的整体形状,而不注意节点的巧合或非重合。 数据转换装置104根据指示的网格划分数来划分如此组装的每个部分的形状,以生成元素数据和节点数据。 此外,它产生用于连接在相邻部分之间不连接的节点的约束方程,并且形成分析模型401.有限元方法分析器105使用近似计算装置106近似来自节点的非连接节点位移 基于约束方程的相邻结构元素的点位移。