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Measurement of Dynamic Elastomer Properties in a Torsional Vibration Damper
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English
Abstract
A method has been developed for determining the damping and stiffness of an elastomeric engine crankshaft vibration damper by using the frequencies where the peak ring acceleration and amplitude occur. An FFT analyzer with integration capabilities and a linear accelerometer were the instruments used for making the necessary measurements. The resulting damping calculation correlated very well with the damping determined by other methods. The FFT used in these tests lacked frequency expansion capabilities, which could result in a substantial error in the calculated damping value for low damping elastomers.
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Citation
Strader, D. and Henry, M., "Measurement of Dynamic Elastomer Properties in a Torsional Vibration Damper," SAE Technical Paper 840481, 1984, https://doi.org/10.4271/840481.Also In
References
- Bremer R. C. A Practical Treatise on Engine Crankshaft Torsional Vibration Control SAE SP-445 August 1979
- Thomson W.T. Theory of Vibration with Applications Prentice-Hall 1972
- Tse F.S. Morse I.E. Hinkle R. T. Mechanical Vibrations Allyn and Bacon 1963