Articles

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A Two-Disk Extended Jeffcott Rotor Model Distinguishing a Shaft Crack from Other Rotating Asymmetries (with Jim Meagher), International Journal of Rotating Machinery (2008)

A mathematical model of a cracked rotor and an asymmetric rotor with two disks representing...

 

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Response of a Warped Flexible Rotor with a Fluid Bearing (with Jim Meagher and Chris Lencioni), International Journal of Rotating Machinery (2008)

A two-complex-degrees-of-freedom model is developed and compared to experimental data for various amounts of rotor...

 

Presentations

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A Differential Planetary Gear Model with Backlash and Teeth Damage (with Jim Meagher and Andrew Sommer), IMAC XXIX Conference and Exposition on Structural Dynamics: Jacksonville, Florida (2011)

Planetary gear trains can be more compact and efficient as power transmissions than fixed axis...

 

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An Advanced Numerical Model of Gear Tooth Loading from Backlash and Profile Errors (with Andrew Sommer and Jim Meagher), IMAC XXIX Conference and Exposition on Structural Dynamics: Jacksonville, Florida (2011)

This study demonstrates the early transient dynamic loading on teeth within a fixed-axis gear transmission...

 

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Dynamics Simulation and Malfunction Diagnosis of Heavy Machinery Using MSC ADAMS (with Dewen Kong and Jim M. Meagher), Virtual Product Development Conference: Phoenix, Arizona USA (2009)
 

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Integrating ADAMS Software into an Upper Division Mechanical Design and Analysis Course (with Dewen Kong and Jim Meagher), Virtual Product Development Conference: Phoenix, Arizona USA (2009)
 

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Nonlinear Contact Analysis of Gear Teeth for Malfunction Diagnostics (with D. Kong, J. M. Meagher, C. Xu, and Y. Wu), IMAC XXVI Conference and Exposition on Structural Dynamics: Orlando, Florida (2008)

Gearboxes sustain a variety of faults such as broken-shafts, eroded, broken, or missing teeth, and...

 

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Investigation of Coupled Lateral and Torsional Vibrations of a Cracked Rotor Under Radial Load (with Jim Meagher and Clinton Judd), IMAC XXV Conference and Exposition on Structural Dynamics: Orlando, Florida (2007)

A practical cracked rotor model with two disks representing a turbine and generator is studied...

 

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Response of a Warped Flexible Rotor with a Fluid Bearing (with Jim Meagher and Chris Lencioni), IMAC XXV Conference and Exposition on Structural Dynamics (2007)

A two complex degrees of freedom model is developed and compared to experimental data for...

 

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Application of Nonlinear Dynamics Tools for Diagnosis of Cracked Rotor Vibration Signatures (with Jerzy T. Sawicki, Andrew L. Gyekenyesi, and George Y. Baaklini), SPIE International Symposium, San Diego (2005)

The nonlinear model of the cracked Jeffcott rotor is investigated, with the particular focus on...

 

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Vibration-Based Crack Diagnosis in Rotating Shafts During Acceleration Through Resonance (with Jerzy T. Sawicki, George Y. Baaklini, and Andrew L. Gyekenyesi), Proceedings of the 10th Annual International Symposium on Smart Structures and Materials, San Diego (2003)

The dynamic response of a cracked Jeffcott rotor passing through the critical speed with constant...