Using a general purpose finite element approach to attain higher fidelity rotordynamic analyses

Andrew L. Gyekenyesi; Adam C. Wroblewski

doi:10.1117/12.2084625

1 April 2015 Using a general purpose finite element approach to attain higher fidelity rotordynamic analyses

Andrew L. Gyekenyesi, Adam C. Wroblewski

Proceedings Volume 9437, Structural Health Monitoring and Inspection of Advanced Materials, Aerospace, and Civil Infrastructure 2015; 943713 (2015) https://doi.org/10.1117/12.2084625
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2015, San Diego, California, United States

Abstract

By utilizing a general purpose finite element (FE) code, the dynamic response of a rotor system was numerically studied in order to assess physical effects that are typically not taken into account using traditional rotordynamic codes. This included the allowance for disk flexibility as well as conducting a simultaneous heat transfer analysis that resulted in varying temperatures in the axial and radial directions. The numerical study utilized a generic, multi-disk model with a flexible hollow shaft. The Campbell diagrams and the mode shapes showed that neglecting any of the additional influences may cause errors regarding the predicted rotor dynamic response. By increasing the fidelity of the rotor model and accounting for the various effects, the slight signal modifications due to damage can be more easily recognized allowing for increased accuracy during rotor health monitoring.

Citation Download Citation

Andrew L. Gyekenyesi and Adam C. Wroblewski "Using a general purpose finite element approach to attain higher fidelity rotordynamic analyses", Proc. SPIE 9437, Structural Health Monitoring and Inspection of Advanced Materials, Aerospace, and Civil Infrastructure 2015, 943713 (1 April 2015); https://doi.org/10.1117/12.2084625

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