The Ohio State University

April 3rd, 2008: Three students from the Dynamics and Vibrations lab attended the Vertical Lift Research Center of Excellence (VLRCOE) Review held at Atheron Hotel near Penn State University. Together they presented on "Advanced Dynamic Modeling and Analysis of Rotorcraft Planetary Gears". This presentation consisted of parts prepared by three students: Nonlinear Dynamics of Planetary Gears by Cheon-Jae Bahk, Dynamics of Compound Planetary Gears by Yichao Guo, and Three-dimensional Considerations in Gear Dynamics by Tugan Eritenel.

More information on VLRCOE available at http://www.engr.psu.edu/rcoe/index.htm

Mar 6, 2008: The American Society of Mechanical Engineers (ASME) has announced this year's fellows and Rob Parker, professor in mechanical engineering, is a 2008 honoree.

ASME selected Parker for his development of a major research program on the dynamics, vibration, and stability of mechanical systems with particular focus on high-speed machinery. His current work focuses on the dynamics of geared transmissions and axially moving media such as belt drives. This work examines fundamental problems at the boundary of academic research and industrial applications, adopting mathematical, computational and experimental approaches.

Link to story on ME website

September 25th 2007: The new Dynamics and Vibrations Lab webpage is live!   Content will be added over the next few weeks.

September 4-7, 2007:

Two Dynamics & Vibration lab Ph.D. students, Yichao Guo and Cheon-Jae Bahk presented papers at the 10th ASME International Power Transmission and Gearing Conference in Las Vegas, Nevada. Yichao offered presentations on Mesh Phasing Relations of General Compound Planetary Gears and Sensitivity of General Compound Planetary Gear Natural Frequencies and Vibration Modes to Model Parameters, while Cheon-Jae presented Nonlinear Dynamics of Planetary Gears With Equal Planet Spacing. Several graduated Dynamics lab members also made presentations.

Following the conference, Cheon-Jae begins an internship at Caterpillar in Peoria IL.

July 2007: After months under construction at the Intra machine shop, the HGAP/MGAP fixtures for testing planetary gears have arrived in the lab. Tristan Erison and Andrew Del Donno installed the fixtures in the Planetary Test stand, and shakedown can now begin.

Fixtures installed on Planetary bedplate: