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http://dx.doi.org/10.5139/JKSAS.2002.30.4.064

Damped Vibrations of Axially-Stressed Laminated Beams using Zig-Zag Finite Element  

Lee, Deog-Gyu (한국항공우주연구원 위성운영센터)
Cho, Maeng-Hyo (서울대학교 기계항공공학부)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.30, no.4, 2002 , pp. 64-69 More about this Journal
Abstract
Dynamic analysis of laminated beams with a embedded damping layer under tension or compression axial load is investigated. Improved Layer-Wise Zig-Zag Beam Theory and Interdependent Kinematic Relation using the governing equations of motion are incorporated to model the laminated beams with a damping layer and a corresponding beam zig-zag finite element is developed. Flexural frequencies and modal loss factors under tension or compression axial load are calculated based on Complex Eigenvalue Method. The effects of the axial tension and compression load on the frequencies and loss factors are discussed.
Keywords
Damping; Zig-Zag Theory; Loss Factor;
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