JOURNAL BROWSE
Search
Advanced SearchSearch Tips
Active Vibration Control of a Precision Equipment on Flying Vehicle Structure
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Active Vibration Control of a Precision Equipment on Flying Vehicle Structure
Lee, Jae-Hong; Yu, Jin-Hyeong; Park, Yeong-Pil;
  PDF(new window)
 Abstract
The equipments mounted on guided-missile undertake heavy vibrational disturbance. Sometimes the equipments mounted on guided-missile go wrong so that the guided-missile flies over unintended place. For the vibration isolation of the equipments mounted on guided-missile, active vibration control was performed. In the case of active vibration technique, the stiffness matrix and the mass matrix are derived based on FEM (ANSYS5.0). Model reduction was carried out and, as a result, we got 7 DOF mass and stiffness matrix. For the sake of FEM model identification, modal experiment was carried out. With the help of Sensitivity Analysis, the natural frequencies of FEM were tuned to those of Experiment. In this work, the Sky Hook and the LQG control theory were adopted for v iteration control using stacked piezoactuator. Experiments were performed with changing excitation frequency from 10 Hz upto 200 Hz and we got frequency response function of guided-missile equipments. The magnitude of 3rd mode of guided-missile equipments is 8.6 % that of Uncontrolled in Skyhook controller and is 3.4 % that of uncontrolled in LQG controller.
 Keywords
Guided-Missile;GCU;FEM;Modal Experiment;Sensitivity Analysis;Skyhook;LQG;
 Language
Korean
 Cited by
 References
1.
Stresses in Shells, 1967.

2.
Proc. of IME, 1953. vol.167. pp.62-74

3.
대한기계학회논문집, 1991. vol.15. 3, pp.789-798

4.
J. of Engineering for Industry, Trans of the ASME, 1974. pp.619-629

5.
Proc. Instn. Mech. Engrs. 1970-1, 1971. vol.185 36/71. pp.553-563

6.
Transactions of the ASME, Journal of Vibrations and Acoustics, 1990. vol.112. pp.8-15

7.
대한기계학회논문집논문집, 0000. vol.18. 5, pp.1169-1181

8.
日本機械學會論文集(C編), 1995. vol.61. 587, pp.2833-2838

9.
11th IMAC, 1993.