A Study on Response Analysis of Machine Structure System Subjected to Two-Seismic Motions : 2nd Report, Response Characteristics to Seismic Excitations with Time Delay Interval
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Dynamic behaviour of a machine structure model subjected to two seismic motions one of which has certain time delay interval behind the other is investigated. At first response properties to earthquake for a simple mechanical model of a one-degree-of-freedom system are computed by analog computer. In this procedure it is necessary to obtain wave forms not only of acceleration but also of velocity and displacement. Hence an approximate method to integrate random wave is proposed and discussed. To examine this oepration the frequency characteristics of the transfer function are investigated. It is shown through this analysis that acceleration response amplification and the displacement response show fluctuating characteristics which depend on the natural period of the mechanical model and the time delay interval. Finally statistical investigations are made. Response characteristics by this statistical computation agree fairly well with those by analog computation.
- 一般社団法人日本機械学会の論文
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