Vibrational analysis of stiffened double-layered plate in vacuum

Abstract

Stiffened plate has widely application in engineering, stiffened double-layered plate is one typical structure. In this work, research object is the stiffened double-layered plate, modal and forced vibration responses are studied through experimental work and numerical simulation with FEM software, and comparative analysis is also conducted. Numerical results show that, experimental results match well with numerical simulation results, the maximum difference for first four modal frequencies are less than 5%, so numerical simulation is verified to be correct. Conclusions here will help to support the further design and application of stiffened double-layered plate in engineering area.