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Dynamics of a Rotating Cantilever Beam Near Its Critical Angular Speed
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 Title & Authors
Dynamics of a Rotating Cantilever Beam Near Its Critical Angular Speed
Choe, Chang-Min; Yu, Hong-Hui;
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 Abstract
Dynamics of a rotating cantilever beam near its critical angular speed is investigated in this paper. The external, force is idealized as a periodic function which has the same period as the rotati ng frequency of the beam. The equations of motion are derived and transformed into a dimensionless form. A prescribed spin-up motion is employed for the rotating motion. Numerical study shows that the steady state and the transient responses of the beam are affected by the spin-up time constant and there exists a time constant at which the maximum transient response becomes minimum.
 Keywords
Rotating Cantilever Beams;Critical Angular Speed;Natural Frequency Variation;Slenderness Ratio;Hub Radius Ratio;External Force Ratio;Gyroscopic Damping Effect;
 Language
Korean
 Cited by
1.
노즐 분사력에 의해 가진되는 다중 패킷 블레이드계의 과도 진동 해석,임하성;유홍희;

한국소음진동공학회논문집, 2008. vol.18. 7, pp.711-717 crossref(new window)
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