| 摘要 |
PURPOSE:To check the calculation accuracy of a response calculation value by a mode superposition method by comparing a result of a quasistatic response analysis by the mode superposition method being a kind of approximate solution, with a result of a static analysis. CONSTITUTION:In an intrinsic value analyzing part 1, by solving an intrinsic value question expression I, omega<2> and {phi} for satisfying this expression I are derived. In a static analyzing part 3, a displacement vector {us} is derived by solving [K]{us}={f} (f denotes a load vector). By using the obtained {us}, a stress {sigmas} is derived by {sigmas}=[S]{us}, and they are stored in a file A. In a quasistatic response analyzing part 4, an equation of motion II is solved, and obtained {ud} and {sigmad} are stored in a file B. A comparing part 5 compares the file A and B. In a time history response analyzing part 6 by a mode superposition method, the calculation is executed in the same way by giving a time function to be solved originally, and time history response values of a displacement {u} and a stress {sigma} are obtained.
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