Large-scale real-time hybrid simulation of a three-story steel frame building with magneto-rheological dampers

2014 ◽  
Vol 43 (13) ◽  
pp. 1915-1933 ◽  
Author(s):  
Yunbyeong Chae ◽  
James M. Ricles ◽  
Richard Sause
Keyword(s):  
Real Time ◽  
Large Scale ◽  
Hybrid Simulation ◽  
Steel Frame ◽  
Frame Building ◽  
Magneto Rheological

Soft real-time hybrid simulation based on a space steel frame

2020 ◽  
Vol 18 (6) ◽  
pp. 2699-2722
Author(s):  
Tengfei Li ◽  
Lei Ma ◽  
Yan Sui ◽  
Mingzhou Su ◽  
Yi Qiang
Keyword(s):  
Real Time ◽  
Hybrid Simulation ◽  
Steel Frame ◽  
Simulation Based

Real-time hybrid simulation on high strength steel frame with Y-shaped eccentric braces

2021 ◽  
Vol 226 ◽  
pp. 111369
Author(s):  
Tengfei Li ◽  
Mingzhou Su ◽  
Yan Sui ◽  
Lei Ma
Keyword(s):  
Real Time ◽  
High Strength Steel ◽  
Hybrid Simulation ◽  
High Strength ◽  
Steel Frame

Real-Time Hybrid Simulation of a Steel MRF with Large Scale Passive Magneto-Rheological Fluid Dampers under Selected Ground Motions

2011 ◽  
Vol 243-249 ◽  
pp. 3962-3965
Author(s):  
Cheng Chen ◽  
James M. Ricles
Keyword(s):  
Real Time ◽  
Large Scale ◽  
Design Procedure ◽  
Efficient Design ◽  
Mr Fluid ◽  
Moment Resisting Frame ◽  
Moment Resisting ◽  
Fluid Dampers ◽  
Magneto Rheological ◽  
Steel Mrf

Experimental evaluation of large scale MR fluid dampers for seismic hazard mitigation in buildings is presented in this paper. A simplified design procedure is applied to design a two-story, four-bay steel moment resisting frame (MRF) prototype structure with MR fluid dampers in passive mode. Real-time hybrid simulations are conducted to experimentally evaluate the performance of the MRF. The simulation results show that the simplified design procedure enables an efficient design to be achieved for an MRF with MR fluid dampers in passive-on mode.

Experimental Evaluation of an Adaptive Actuator Control Scheme for Real-Time Tests of Large-Scale Magneto-Rheological Damper Under Variable Current Inputs

2009 ◽  
Author(s):  
Cheng Chen ◽  
James M. Ricles
Keyword(s):  
Real Time ◽  
Hybrid Simulation ◽  
Mr Damper ◽  
Structural Systems ◽  
Adaptive Compensation ◽  
Hydraulic Actuator ◽  
Control Laws ◽  
Mr Dampers ◽  
Magneto Rheological ◽  
Actuator Control

A Magneto-Rheological (MR) fluid damper is a semi-active device for vibration control of engineering structures subjected to dynamic loading. The characteristics of MR dampers vary under different current inputs to achieve optimized vibration control of structural systems. Experimental evaluation of MR dampers under different control laws is necessary before the device can be accepted by the practical design community. Real-time hybrid simulation provides an economical and efficient dynamic testing technique by accounting for the damper rate-dependency and the damper-structure interaction. A successful real-time hybrid simulation requires accurate actuator control to achieve reliable experiment results. A servo-hydraulic actuator usually introduces a time delay due to servo-hydraulic dynamics. The variable current inputs induced by semi-active control laws would pose additional challenges for actuator control by introducing variable delay in a real-time hybrid simulation. In this paper an adaptive compensation technique is experimentally evaluated for real-time hybrid simulation involving an MR damper under variable current inputs. Predefined band-limited white noise is used as the displacement command for the servo-hydraulic actuator and current command for the MR damper. The adaptive compensation scheme is demonstrated to achieve accurate actuator control and therefore shows great potential for real-time hybrid simulation of structural systems with semi-active energy dissipation devices.

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