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dc.contributor.authorNandam, S.
dc.contributor.authorRamesh, Babu, R.
dc.contributor.authorVenkataramana, K.
dc.date.accessioned2020-03-31T08:31:13Z-
dc.date.available2020-03-31T08:31:13Z-
dc.date.issued2012
dc.identifier.citationInternational Journal of Earth Sciences and Engineering, 2012, Vol.5, 5, pp.1394-1399en_US
dc.identifier.urihttp://idr.nitk.ac.in/jspui/handle/123456789/11365-
dc.description.abstractPost earthquake performance of porcelain insulators installed for high voltage substation equipment, in general, revealed their vulnerability to failure, not due to any quality deficiency, but due to failure of their supporting structures. Most of the equipment in standalone state, withstood to tests of induced vibrations conforming to International standards. The same tested equipment, when erected in position over its supporting structure failed to sustain earthquake ground accelerations, as the supporting structure adversely contributed to amplification of the ground seismic motions while traversing to the top of the structure or the base of the insulator. This paper critically examines salutary effects of damping of vibrations on a typical instrument- transformer, using a rubber based elastic damper, with particular reference to the connected porcelain insulators, in partial containment of amplification of earthquake acceleration or in minimizing attendant distress on them. The analytical study carried out is based on experimental studies conducted on the equipment using shake table and then correlating the results obtained using finite element analysis, on the full scale model to draw meaningful conclusions. 2012 CAFET-INNOVA TECHNICAL SOCIETY.en_US
dc.titleFull scale experiment and finite element modeling of support structures of substation equipment for evaluation of ground motion amplificationen_US
dc.typeArticleen_US
Appears in Collections:1. Journal Articles

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