Seismic Vibration Analysis on Industrial Control Panels through Finite Element Analysis

Deepak Raj S, Nazeer Azam A

Abstract: Industrial drives are electrical devices which are used to control the speed of motor by controlling frequency of the power input to the motor used in industries and in heavy duty applications like mining, weaving, cranes, hoists, marine, etc. In these application locations, vibration tends to be very heavy and also the dust particles and other environmental factors may affect the efficiency of the drive and even may lead to its failure. In addition to the above - mentioned vibrations these drives are also used in industries which are situated in seismic zones and the drive panels may fail during the time of earthquake. In this paper, considering the worst - case scenarios, the seismic analysis of drive enclosures (Drive panels) is performed as per seismic standards in ICC (International Code Council) considering zone IX earthquake zone. In this study, the critical parts are identified, stress and response acting on them are observed and the required design changes are considered to bring down the stress level to safe stress and make the panel robust in seismic zone.

Keywords: Seismic vibration, Modal analysis, Seismic standards, Industrial drive panels, Industrial control panels, Random vibration, Earthquake vibration