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Probabilistic Analysis of a Linearized Servo-Hydraulic Model for Real-Time Structural Testing
Servo-hydraulic actuators are often used in real-time hybrid simulation to impose desired displacements to specimens and to maintain the boundary compatibility between substructures. Previous studies often consider the servo-hydraulic system as deterministic while experimental results indicate otherwise due to different sources of uncertainties. This study utilizes the generalized likelihood uncertainty estimation method to explore the uncertainties in servo-hydraulic dynamics. Probabilistic distribution and statistical moments are derived for parameters of a linearized servo-hydraulic model based on experimental results. The analysis results are further applied to demonstrate the effects of servo-hydraulic uncertainties on actuator tracking and compared with the corresponding deterministic model.
Probabilistic Analysis of a Linearized Servo-Hydraulic Model for Real-Time Structural Testing
Servo-hydraulic actuators are often used in real-time hybrid simulation to impose desired displacements to specimens and to maintain the boundary compatibility between substructures. Previous studies often consider the servo-hydraulic system as deterministic while experimental results indicate otherwise due to different sources of uncertainties. This study utilizes the generalized likelihood uncertainty estimation method to explore the uncertainties in servo-hydraulic dynamics. Probabilistic distribution and statistical moments are derived for parameters of a linearized servo-hydraulic model based on experimental results. The analysis results are further applied to demonstrate the effects of servo-hydraulic uncertainties on actuator tracking and compared with the corresponding deterministic model.
Probabilistic Analysis of a Linearized Servo-Hydraulic Model for Real-Time Structural Testing
Peng, Changle (author) / Chen, Cheng (author) / Hou, Hetao (author) / Xu, Weijie (author)
Journal of Earthquake Engineering ; 26 ; 6656-6675
2022-10-03
20 pages
Article (Journal)
Electronic Resource
Unknown
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