균형모델저차화(BMR)에 의한 밑면 격리구조물의 루프전달회복(LTR) 지진동 제어 (Seismic Control of A Base Isolated Structure Using Balanced Model Reduction(BMR) in Loop Transfer Recovery)

서지정보

· 발행기관 : 대한건축학회
· 수록지 정보 : 대한건축학회논문집 구조계 / 24권 / 3호 / 11 ~ 18페이지
· 저자명 : 정우찬, 이진호

초록

The purpose of this study is to verify an applicability of Balanced Model Reduction(BMR) technique known as one of the
controller reduction technique, for an active vibration control in a base isolated structure subjected to the seismic excitations. A
controller devised in a reduced order can have beneficial effects not only on computing time required for generating the input
forces but also on the hardware implementations. The control algorithm used in the closed loop control system in this study is
called Loop Transfer Recovery(LTR) method to enhance the robust stability against the uncertainties inherently existing in the
mathematical model, resulting in a full order controller. The order of the controller is then reduced by BMR technique as the
prescribed procedures. The performance of the reduced controller is determined from the time history responses as well as the
frequency responses. The results indicate that the reduced order control system using BMR technique with LTR
method(BMR/LTR) exhibits nearly identical responses characteristics to those of the full order control system in both the time
and the frequency domain.

영어초록

The purpose of this study is to verify an applicability of Balanced Model Reduction(BMR) technique known as one of the
controller reduction technique, for an active vibration control in a base isolated structure subjected to the seismic excitations. A
controller devised in a reduced order can have beneficial effects not only on computing time required for generating the input
forces but also on the hardware implementations. The control algorithm used in the closed loop control system in this study is
called Loop Transfer Recovery(LTR) method to enhance the robust stability against the uncertainties inherently existing in the
mathematical model, resulting in a full order controller. The order of the controller is then reduced by BMR technique as the
prescribed procedures. The performance of the reduced controller is determined from the time history responses as well as the
frequency responses. The results indicate that the reduced order control system using BMR technique with LTR
method(BMR/LTR) exhibits nearly identical responses characteristics to those of the full order control system in both the time
and the frequency domain.

참고자료

· 없음