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http://dx.doi.org/10.5050/KSNVN.2002.12.4.272

Free Vibration and Dynamic Stability of the Axially Moving Continuum with Time-varying Length  

사재천 (서강대학교 대학원 기계공학과)
이민형 (세종대학교 기계공학)
이승엽 (서강대학교 기계공학과)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.12, no.4, 2002 , pp. 272-279 More about this Journal
Abstract
The time-dependent frequency and energy of free vibration of the spagetti problem, that is the axially moving continuum with time-varying length, are investigated. Exact expressions for the natural frequency and time-varying vibration energy are derived by dealing with traveling waves. The vibration period increases with increasing length, but the free vibration energy decreases. When the string undergoes retraction, the vibration energy increases with time. The free response of the time-varying string is represented by superposing two traveling waves.
Keywords
Spagetti Problem; Axially Moving System; Traveling Wave; Free Vibration; Phase Closure Principle; Energy Reflection Coefficient;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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