Title

Nonlinear System Identification and Modeling of a New Fatigue Testing Rig Based on Inertial Forces

Authors

Michael Falco, University of Rhode Island
Ming Liu, University of Rhode Island
Son Hai Nguyen, University of Rhode Island
David Chelidze, University of Rhode IslandFollow

Document Type

Article

Date of Original Version

4-18-2014

Abstract

A novel fatigue testing rig based on inertial forces is introduced. The test rig has capacity to mimic various loading conditions including high frequency loads. The rig design allows reconfigurations to accommodate a range of specimen sizes, and changes in structural elements and instrumentation. It is designed to be used as a platform to study the interaction between fatigue crack propagation and structural dynamics. As the first step to understand this interaction, a numerical model of testing rig is constructed using nonlinear system identification approaches. Some initial testing results also are reported.

Citation/Publisher Attribution

Falco, M., Liu, M., Nguyen, S. H., & Chelidze, D. (2014). Nonlinear System Identification and Modeling of a New Fatigue Testing Rig Based on Inertial Forces. Journal of Vibration and Acoustics, 136(4), 041001. doi: 10.1115/1.4027317

Available at: http://dx.doi.org/10.1115/1.4027317