Proceedings of the KSME Conference (대한기계학회:학술대회논문집)
- 2003.11a
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- Pages.1696-1701
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- 2003
Thermally-Induced Vibration Control of Rotating Composite Thin-Walled Blade
회전하는 복합재 블레이드의 열진동 해석 및 제어
- Jung, Hoe-Do (Korea University) ;
- Na, Sung-Soo (Korea University) ;
- Kwak, Mun-Kyu (Dong-Guk University) ;
- Heo, Seok (Dong-Guk University)
- Published : 2003.11.05
Abstract
This paper deals with a vibration control analysis of a rotating composite blade, modeled as a tapered thinwalled beam induced by heat flux. The displayed results reveal that the thermally induced vibration yields a detrimental repercussions upon their dynamic responses. The blade consists of host graphite epoxy laminate with surface and spanwise distributed transversely isotropic (PZT-4) sensors and actuators. The controller is implemented via the negative velocity and displacement feedback control methodology, which prove to overcome the deleterious effect associated with the thermally induced vibration. The structure is modeled as a composite thin-walled beam incorporating a number of nonclassical features such as transverse shear, secondary warping, anisotropy of constituent materials, and rotary inertias.
Keywords