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Free‐vibration analysis of single‐layer and two‐layer bimodular beams
Author(s) -
Wu JongShyong,
Jing HungSying,
Cheng ChunRong
Publication year - 1989
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/nme.1620280416
Subject(s) - vibration , normal mode , structural engineering , layer (electronics) , isotropy , mode (computer interface) , materials science , natural frequency , beam (structure) , composite material , computer science , acoustics , engineering , optics , physics , operating system
A method is presented for determining the natural frequencies and the corresponding mode shapes of isotropic bimodular beams at certain supporting conditions. Although only the lowest three modes of the single‐layer and two‐layer bimodular beams were studied, in principle, the method may also be used to determine higher‐mode natural frequencies and shapes of the multi‐layer beams. Numerical analysis shows that the approach is suitable for the free‐vibration analysis of clamped/free and hinged/hinged bimodular beams.