Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)
- 2004.11a
- /
- Pages.115-120
- /
- 2004
- /
- 1598-2548(pISSN)
A Study on the Response Characteristics of Aeroelastic Systems Applying Robust Observer and Controller
강인한 관측기와 제어기를 적용한 공탄성 시스템의 응답특성 연구
- Jeong, In-Joo (Korea University) ;
- Na, Sung-Soo (Korea University)
- Published : 2004.11.01
Abstract
This paper concerns the active aeroelastic control of flapped wing systems exposed to blast and/or the sonic boom in an incompressible flow field. This is achieved via implementation of a robust estimation capability (sliding mode observer: SMO), and of the use of the deflected flap as to suppress the flutter instability or enhance the subcritical aeroelastic response to blast loads. To this end, a control methodology using LQG(Linear Quadratic Gaussian) in conjunction with SMO is implemented, and its performance toward suppressing flutter and reducing the vibrational level in the subcritical flight speed range is demonstrated. Moreover, its performances are compared to the ones provided via implementation of conventional LQG with Kalman filter.