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NEES Project Warehouse

Experimental Testing of Controllable Damping Devices toward Extending the Lifespan of Existing Highway Bridges
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Experiment contains data, required metadata, and documentation including the experimental report.

Complete - 04/29/2013

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Experiment-5: Low Velocity System Identification Tests
Experiment Type: Large Scale
Description: The Large-scale MR dampers exhibit highly nonlinear behavior at extremely low velocities, as observed in this truck-induced highway bridge vibration application. Existing MR damper models do not adequately capture the observed behavior of low force permanent offsets and nonsymmetric force behavior during sinusoidal displacements. This experiment conducted system identification tests of the MR damper at low velocities. While no low-velocity model was successfully developed within this project, the data is made available here for other researchers to observe and perhaps model this low velocity behavior of the dampers.
Dates: November 04, 2010 to Present
Facility: Lehigh University, PA, United States
Equipment: View Details
Specimen Type: 200 kN MR Damper (view)
Sensors: Sensor List
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Tags (keywords):
  1. MR Dampers
  2. System Identification
Cite this work:
Zhaoshuo Jiang, Richard Christenson (2013). "Low Velocity System Identification Tests", Network for Earthquake Engineering Simulation (distributor), Dataset, DOI:10.4231/D3D50FX5G