지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2012.10
- 수록면
- 316 - 321 (6page)
이용수
초록· 키워드
오류제보하기
There has been great demand for shape memory alloy (SMA) wires as actuators for shape control of flexible structures. The experimental setup of this study consists of a flexible beam actuated by two active SMA actuators. The input applied to the SMA actuator in this setup is electrical current while the output is the strain or position. To control strain of the actuator, the SMA wire is heated resistively in order to reach the desired temperature calculated by inverse of the phenomenological model. In heating the SMA wire resistively, the controllable quantity is the heat input to the wire via an applied current. In controller design, changes of physical properties of SMA wires and the surrounding air due to temperature change must be taken into consideration. This adds uncertainty to the presented model. Furthermore, both wires must approach the desired temperature while maintaining the same temperature history. Moreover, a suitable shape control requires overdamped response. A 2-DOF robust controller is designed in this study in order to achieve all the above requirements. The robust controller by the DK iteration method is designed after modeling of the system uncertainties. Required simulations are performed for evaluation of the controller. Obtained results show the ability of controller against time variant uncertainties.
목차
Abstract
1. INTRODUCTION
2. SYSTEM MODELING
3. μ SYNTHESIS AND DK ITERATION
4. MODEL UNCERTAINTY
5. DK ITERATION
6. RESULTS
7. CONCLUSION
REFERENCES
참고문헌 (0)
참고문헌 신청이 논문의 저자 정보
최근 본 자료
댓글(0)
0