Publications / 2013 Proceedings of the 30th ISARC, Montréal, Canada

The Resonant Phenomena in a Pneumatic Drive Piston

L.T. Raevskaia
Pages 1412-1417 (2013 Proceedings of the 30th ISARC, Montréal, Canada, ISBN 978-1-62993-294-1, ISSN 2413-5844)

We discuss the stability problem of a piston of the reversible axial-piston pneumatic motor called DAR-14M. We performed the full analysis of stress and deformation characteristics of the piston near a resonant frequency with the help of FEM ANSYS. We estimated the own frequency of the piston analytically for the given motor, this estimate was confirmed numerically in the model analysis FEM ANSYS. It was also shown in harmonic analysis that loaded piston end behaves very different in comparison to the unloaded end. As expected, maximum deformation was found in the area of the holes of the bearing shaft, indicating an optimization necessary in that region of the motor.

Keywords: Frequency of a forced oscillation, axial - piston pneumatic motor, near resonance behaviour