NUMERICAL STRUCTURE ANALYZER BY LOAD TRANSFER PATH METHOD

摘要

A numerical structure analyzer by the load transfer path method the calculation time of which can be greatly shortened. A parameter is so set that the support point (B) of a structure to be analyzed is fixed and a load is exerted on a specific load point (A). The deformation of the object is computed by a finite element method computing means (2) by using an overall rigidity matrix of rigidity matrix holding means (1) to determined basic data such as the displacement value of each point. The specific load point (A) and the support point (B) are fixed, three test loads are exerted on a variation load point (C), and the respective deformations are computed by the finite element method computing means (2) to determine the displacement values. Partial rigidity matrix computing means (3) solves a hypercomplex simultaneous linear equations based on the internal rigidity matrix, the load value, and displacement value of the object to determine a partial rigidity matrix K_AC. Rigidity index computing means (8) computes the value of the rigidity index U* from the partial rigidity matrix K_AC and the displacement value of the basic data. The variation load point (C) is so changed as to follow all the point necessary for the structure to be analyzed, and thereby computing the U* value of the points.