In this paper the radial and axial vibration behaviour of a rigid shaft supported by a pair of back-to-back angular contact ball bearings, mounted on elastomeric O-ring dampers, is studied. The use of elastomeric dampers for reducing the untoward effects of vibrations, due to unbalance of the shaft centre, is investigated. A computer program was developed to simulate such situations with the results presented in the form of frequency response curves and shaft centre orbits.
All results showed that elastomeric O-ring dampers can successfully be used for shaft-ball bearing systems as long as the dynamic characteristics of both the system and the elastomeric O-rings are known very well.
Get full access to this article
View all access options for this article.
References
1.
GustafssonO. G.TallianT. et al. Research report on the study of the vibration characteristics of bearings. Report AL631023, Reg:585 14:422 3 SKF Ind., Inc., December 1963.
2.
AktürkN.UneebM.GoharR.Vibration of a shaft supported by angular contact ball bearings. Presented at the ESDA Conference, Istanbul, Turkey. 29 June-3 July 1992.
3.
AktürkN.Dynamics of a rigid shaft supported by angular contact ball bearings. PhD thesis, Imperial College of Science, Technology and Medicine, London, 1993.
4.
GunterE. J.Influence of flexibly mounted rolling element bearings on rotor response, Part 1—Linear analysis. Trans. ASME, J. Lubric. Technol., January 1970, 92, 59–75.
5.
PowellJ. M.TempestM. C.A study of high speed machines with rubber stabilised air bearings. Trans. ASME, J. Lubric. Technol., October 1968, 90, 701–708.
6.
KazimierskiZ.JarzeckiK.Stability threshold of flexibly supported hybrid gas journal bearings. Trans. ASME, J. Lubric. Technol., October 1979, 101, 451–457.
7.
TeczaJ. A.SmalleyA. J.CunninghamR. E.Design of elastomer dampers for a high-speed flexible rotor. Mech. Engng, November 1979, 101.
8.
TeczaJ. A.DarlowM. S.JonesS. W.SmalleyA. J.CunninghamR. E.Elastomer mounted rotors—an alternative for smoother running turbomachinery. Presented at the Gas Turbine Conference and Exhibition and Solar Energy Conference, San Diego, California 12–15 March, 1979, paper 79GT149 (ASME).
9.
FreakleyP. K.PayneA. R.Theory and practice of engineering with rubber, 1978, Applied Science Publishers, London).
10.
GöbelE. F., Rubber spring design, 1974, Newnes-Butterworths).
11.
SmalleyA. J.DarlowM. S.MehtaR. K.Stiffness and damping of elastomeric O-ring bearing mounts. NASA Contractor report CR-135328, prepared by MTI for NASA-Lewis Research Center under Contract NAS3–19751, November 1977.
12.
HarrisT. A.Rolling bearings analysis, 1991, John Wiley, New York).
13.
GuptaP. K.TessarizikJ. M.CziglenyiL.Development of procedures for calculating stiffness and damping properties of elastomers in engineering applications. Part II: elastomer characteristics under constant temperature. NASA Contractor report CR-134704, prepared by MTI for NASA-Lewis Research Center under Contract NAS3–18546, April 1974.
14.
GadE. H.Computer simulation of rotor axial and radial vibrations based on ball bearings. Memoirs of the Faculty of Engineering, Kyushu University, June 1984, 44(2).
