METHOD FOR ANALYZING MOTION, MOTION ANALYZER, COMPUTER PROGRAM, AND RECORDING MEDIUM

摘要

An information processor (100) implementing a method for analyzing motion, comprises a CPU (101) for formulating the relation between an external force applied to each point on the surface of an object and the acceleration by simultaneous linear equations employing a coefficient matrix, extracting a nonspecific submatrix from the coefficient matrix by utilizing matrix decomposition, and calculating the solution of the simultaneous linear equations by utilizing the extracted nonspecific submatrix. When the solution of the formulated simultaneous linear equations is calculated, the solution is obtained as a linearly independent contact problem by neglecting the restraint between some accelerations and the restraints between all accelerations are checked after the solution is obtained.