Location

London

Event Website

http://www.csce2016.ca/

Description

In real-time hybrid simulation (RTHS), as a cost-effective experimental testing technique, computer simulations are coupled with physical testing. RTHS divides the test structure into analytical and experimental substructures, and synchronizes them as the equations of motion are being solved in real-time. When conducted properly, the load-rate dependent characteristics of the test structure could be accurately captured by the RTHS. This paper presents real-time hybrid simulation of a three story structure equipped with a large scale tuned liquid damper (TLD) using a recently developed computational/control platform at University of Toronto. TLDs are cost effective and low maintenance vibration absorbers that can be utilized to suppress structural vibrations under dynamic excitation. They dampen energy through liquid boundary layer friction, the free surface contamination, and wave breaking. However, highly nonlinear and velocity dependent behaviour of these devices makes it difficult to establish representative analytical models for TLDs that are accurate for a wide range of operation. In this study, by employing RTHS the TLD will be tested physically as the experimental substructure and the remaining structure will be modeled analytically as the analytical substructure. This will facilitate the investigation of TLD-structure interaction for a wide range of influential parameters while using a user-programmable computational/control platform to carry out the real-time hybrid simulations.


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Jun 1st, 12:00 AM Jun 4th, 12:00 AM

NDM-555: EXPERIMENTAL INVESTIGATIONS OF LARGE SCALE TLD-STRUCTURE INTERACTION VIA REAL-TIME HYBRID SIMULATION

London

In real-time hybrid simulation (RTHS), as a cost-effective experimental testing technique, computer simulations are coupled with physical testing. RTHS divides the test structure into analytical and experimental substructures, and synchronizes them as the equations of motion are being solved in real-time. When conducted properly, the load-rate dependent characteristics of the test structure could be accurately captured by the RTHS. This paper presents real-time hybrid simulation of a three story structure equipped with a large scale tuned liquid damper (TLD) using a recently developed computational/control platform at University of Toronto. TLDs are cost effective and low maintenance vibration absorbers that can be utilized to suppress structural vibrations under dynamic excitation. They dampen energy through liquid boundary layer friction, the free surface contamination, and wave breaking. However, highly nonlinear and velocity dependent behaviour of these devices makes it difficult to establish representative analytical models for TLDs that are accurate for a wide range of operation. In this study, by employing RTHS the TLD will be tested physically as the experimental substructure and the remaining structure will be modeled analytically as the analytical substructure. This will facilitate the investigation of TLD-structure interaction for a wide range of influential parameters while using a user-programmable computational/control platform to carry out the real-time hybrid simulations.

http://ir.lib.uwo.ca/csce2016/London/NaturalDisasterMitigation/36