A new fatigue testing apparatus model and parameter identification

Authors

Michael Falco, University of Rhode Island
Ming Liu, University of Rhode Island
David Chelidze, University of Rhode Island

Document Type

Conference Proceeding

Date of Original Version

12-1-2010

Abstract

Recently, a novel fatigue testing rig was designed and constructed to investigate the interplay between a fatigue crack evolution and structural dynamics. The aim of this study is to build a simple nonlinear spring-mass-damper model for this testing apparatus and identify all related parameters. A set of forced vibration tests were conducted with different hardware configurations and excitation signals to understand dynamic properties of different components of the rig and present nonlinearities. The system parameters were identified using standard modal analysis and nonlinear system identification approaches. Copyright © 2010 by ASME.

Publication Title, e.g., Journal

Proceedings of the ASME Design Engineering Technical Conference

Volume

5

Citation/Publisher Attribution

Falco, Michael, Ming Liu, and David Chelidze. "A new fatigue testing apparatus model and parameter identification." Proceedings of the ASME Design Engineering Technical Conference 5, (2010): 1007-1012. doi: 10.1115/DETC2010-29107.