Studies on Large-Scale, Real-time Pseudodynamic Hybrid Testing
Project Overview
The pseudodynamic (PSD) test method is a displacement-based experimental technique that is used to simulate the seismic response of structures. It utilizes feedback signals from a test structure in a numerical integration algorithm to sequentially solve the equations of motion to determine command displacements. The command displacements are imposed on a test structure using hydraulic actuators. To avoid the fabrication and testing of the entire structure, the hybrid PSD test method is used where only a portion of the structure is experimentally tested (the experimental substructure). The experimental substructure degrees of freedom are coupled to an analytical model (analytical substructure) that represents the remaining part of the structure.
Using RDV with the 3D Model Panel to view a Real-time Hybrid experiment including a three story analytical substructure and a 2-DOF physical substructure controlled by 3 actuators
Video of real-time MDOF hybrid experiment
Combination of visualization tools (RDV, HybridViz), 3 story analytical substructure (Target PC) and a physical substructure (Damper Actuator testbed) performing a hybrid simulation in Real-time
Video of real-time experiment using elastomeric damper testbed
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