Response Analysis of Piping Systems to Multi-Inputs : Response Estimation and its Fluctuation

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概要

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• For the safety of nuclear power plants, piping systems of the primary loop should be designed as earthquake-resistant structures. Pipings, supported at both ends by some supporting structures, are the most fundamental configuration in a nuclear power plant. The dynamic response of a piping system to two random inputs is analyzed theoretically and the characteristics of response of such a system are discussed. And also the way of superposing its amplification factor from those of single-input models, which were already developed, is discussed. For design, an approximate formula of estimating amplification factor is given based on modal analysis method for pipings. Experimental studies are done by an analog computer. One hundred modified white noise signals are used as pseudo-earthquakes to avoid the effect of sampling or the locality of a particular earthquake. Quantitative discussions of response spectrum of this model are made.

• 一般社団法人日本機械学会の論文

著者

• SHIBATA Heki

  Institute of Industrial Science, University of Tokyo

• Shimizu Nobuyuki

  Institute Of Industrial Science University Of Tokyo

• Shibata Heki

  Institute Of Industrial Science University Of Tokyo

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