지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Smart Structures and Systems, An International Journal Smart Structures and Systems, An International Journal Vol.25 No.5
- 발행연도
- 2020.1
- 수록면
- 569 - 580 (12page)
이용수
초록· 키워드
오류제보하기
The identification of delays and delay compensation are critical problems in real-time hybrid simulations (RTHS). Conventional delay compensation methods are mostly based on the assumption of a constant delay. However, the system delay may vary during tests owing to the nonlinearity of the loading system and/or the behavioral variations of the specimen. To address this issue, this study presents an adaptive delay compensation method based on a discrete model of the loading system. In particular, the parameters of this discrete model are identified and updated online with the least-squares method to represent a servo hydraulic loading system. Furthermore, based on this model, the system delays are compensated for by generating system commands using the desired displacements, achieved displacements, and previous displacement commands. This method is more general than the existing compensation methods because it can predict commands based on multiple displacement categories. Moreover, this method is straightforward and suitable for implementation on digital signal processing boards because it relies solely on the displacements rather than on velocity and/or acceleration data. The virtual and real RTHS results show that the studied method exhibits satisfactory estimation smoothness and compensation accuracy. Furthermore, considering the measurement noise, the low-order parameter models of this method are more favorable than that the high-order parameter models.
목차
등록된 정보가 없습니다.
참고문헌 (38)
참고문헌 신청
M. Ahmadizadeh / 2008 / Compensation of actuator delay and dynamics for real-time hybrid structural simulation / Earthquake Engineering & Structural Dynamics 37(1):21~42
P. A. Bonnet / 2007 / Real-time hybrid experiments with Newmark integration, MCSmd outer-loop control and multi-tasking strategies / Earthquake Engineering & Structural Dynamics 36(1):119~141
Yunbyeong Chae / 2013 / Adaptive time series compensator for delay compensation of servo-hydraulic actuator systems for real-time hybrid simulation / Earthquake Engineering & Structural Dynamics 42(11):1697~1715
Yunbyeong Chae / 2014 / Large-scale real-time hybrid simulation of a three-story steel frame building with magneto-rheological dampers / Earthquake Engineering & Structural Dynamics 43(13):1915~1933
Yunbyeong Chae / 2017 / Experimental study on the rate-dependency of reinforced concrete structures using slow and real-time hybrid simulations / Engineering Structures 132:648~658
P. A. Bonnet / 2007 / Real-time hybrid experiments with Newmark integration, MCSmd outer-loop control and multi-tasking strategies / Earthquake Engineering & Structural Dynamics 36(1):119~141
Yunbyeong Chae / 2013 / Adaptive time series compensator for delay compensation of servo-hydraulic actuator systems for real-time hybrid simulation / Earthquake Engineering & Structural Dynamics 42(11):1697~1715
Yunbyeong Chae / 2014 / Large-scale real-time hybrid simulation of a three-story steel frame building with magneto-rheological dampers / Earthquake Engineering & Structural Dynamics 43(13):1915~1933
Yunbyeong Chae / 2017 / Experimental study on the rate-dependency of reinforced concrete structures using slow and real-time hybrid simulations / Engineering Structures 132:648~658
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