Abstract
We investigate analytically and experimentally the effects of Coulomb friction on the performance of centrifugal pendulum vibration absorbers (CPVAs), which are used to reduce torsional vibrations in rotating machinery. The analysis is based on perturbation methods applied to the nonlinear equations of motion for a rotor subjected to an engine order applied torque and equipped with a circular path CPVA with viscous and Coulomb damping. The experimental work is based on quantifying parameters for the damping model using free vibration measurements with a viscous and Coulomb damping identification scheme that is enhanced to better handle measurement noise, and running tests for steady-state operation under a range of loading conditions. The level of Coulomb damping is varied by adjusting the friction of the absorber connection bearing. Good agreement is found between the analytical predictions and the experimental data. It is shown that the absorber sticks up to a level of excitation that allows it to release, after which the Coulomb damping acts in the expected manner, resulting in lowered response amplitudes. The results obtained are of general use in assessing absorber performance when dry friction is present in absorber suspensions.
Similar content being viewed by others
References
Alsuwaiyan, A.S.: Performance, stability, and localization of systems of vibration absorbers. PhD thesis, Michigan State University (1999)
Chao, C.P., Shaw, S.W.: The dynamic response of multiple pairs of subharmonic torsional vibration absorbers. J. Sound Vib. 231, 411–431 (2000)
Denman, H.H.: Tautochronic bifilar pendulum torsion absorbers for reciprocating engines. J. Sound Vib. 159, 251–277 (1992)
Nester, T.M.: Experimental investigation of circular path centrifugal pendulum vibration absorbers. Master’s thesis, Michigan State University (2002)
Den Hartog, J.P.: Mechanical Vibrations. Dover, New York (1985)
Den Hartog, J.P.: Vibration in industry. J. Appl. Phys. 8, 76–83 (1937)
McCutchen, K.D.: No short days the struggle to develop the r-2800 “double wasp” crankshaft. Am. Aviat. Hist. Soc. J., 124–146 (2001)
Ker Wilson, W.: Practical Solutions of Torsional Vibration Problems. Chapman and Hall, London (1968)
Shaw, S.W., Orlowski, M.B., Haddow A., Geist, B.: Transient dynamics of centrifugal pendulum vibration absorbers. In: Proceedings of the 12th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, 2008–20119, Honolulu, Hawaii, USA (2008)
Nester, T., Haddow, A., Shaw, S., Brevick, J., Borowski, V.: Vibration reduction in variable displacement engines using pendulum absorbers. In: Proceedings of the SAE Noise and Vibration Conference and Exhibition, Traverse city, USA (2003)
Newland, D.E.: Nonlinear aspects of the performance of centrifugal pendulum vibration absorbers. ASME J. Eng. Ind. 86, 257–263 (1964)
Madden, J.: Constant frequency bifilar vibration absorber. Tech. rep., United States Patent No. 4218187 (1980)
Shaw, S.W., Schmitz, P.M., Haddow, A.G.: Dynamics of tautochronic pendulum vibration absorbers: theory and experiment. J. Comput. Nonlinear Dyn. 1, 283–293 (2006)
Liang, J.W., Feeny, B.F.: Identifying Coulomb and viscous friction from free-vibration decrements. Nonlinear Dyn. 16, 337–347 (1998)
Beck, J., Arnold, K.: Parameter Estimation. Wiley, New York (1977)
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Vidmar, B.J., Feeny, B.F., Shaw, S.W. et al. The effects of Coulomb friction on the performance of centrifugal pendulum vibration absorbers. Nonlinear Dyn 69, 589–600 (2012). https://doi.org/10.1007/s11071-011-0289-7
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11071-011-0289-7