| 摘要 |
PURPOSE:To simulate actual earthquake input conditions by suspending a long- sized structure in parallel to a supporting wall and thus constituting a pendulum mechanism, and performing a test by an optional horizontal exciting force by means of plural exciters. CONSTITUTION:A suspending rope 22 is connected to the upper end of a simulated nuclear reactor container for an actual nuclear reactor container and a reactor core tank 11, and the rope 22 is fixed to an upper frame 23 to suspend the container 21 from the upper frame 23 in parallel to a supporting wall 24, thus constituting a pendulum exciting mechanism. For the simulation of the input of an earthquake to the actual machine, hydraulic exciters are installed at respective input points and above and below a simulation upper part earthquake- proof support plate 25, a simulation intermediate earthquake-proof support plate 26, and said containment 21, and the hydraulic exciters 27-30 at those input points input an earthquake wave to perform excitation. For a test, four exciters are operated equally and a simulation system by a computer is employed to equalize the spectrum and waveforms of the earthquake wave after the excitation and input earthquake wave to each other. |
